Answer:
199
Step-by-step explanation:
82+25=107
107+92= 199
On the first two downs, a football team lost 15 yards and then lost 19 yards. Write an expression with addition that shows the changes in yards on the first two downs.
Answer:
The expression with addition that shows the changes in yards on the first two downs is -(15 + 19) = -34
Step-by-step explanation:
At the first down, the net yardage of the football team was of 0.
After the first play:
Lost 15 yards, so the change in yards is:
0 - 15 = -15
After the second play:
Lost 19 yards, so the change in yards is:
-15 - 19 = -(15 + 19) = -34
The expression with addition that shows the changes in yards on the first two downs is -(15 + 19) = -34
Write the property that matches the equation.
3+(4+7)=(3+4)+7
Answer:
associative property
Step-by-step explanation:
Answer:
Associative property of addition
Step-by-step explanation:
The associative property states that numbers can be added or multiplied regardless of their paratheses. This means that how the numbers are grouped can change and still be equal. Another example of this would be [tex]2+(6+5)=(2+6)+5[/tex]. In both equations the sides are balanced.
Ben has a box of marbles. 30 of the marbles are red, 14 are green and 16 are blue. Ben randomly selects a marble from the box, records the color and then replaces the marble in the box. If he selects a marble 30 times, how many times do you predict he will select a blue marble?
Answer:
he will select about 5 blue marbles
Step-by-step explanation:
Please help me with this question.
Answer:
-7
Step-by-step explanation:
hope it helps
In some 4.0 grading systems, a student's grade point average (GPA) is calculated by assigning letter grades the following numerical values.
A = 4.00 B− = 2.67 D+ = 1.33
A− = 3.67 C+ = 2.33 D = 1.00
B+ = 3.33 C = 2.00 D− = 0.67
B = 3.00 C− = 1.67 F = 0.00
Use this grading system to find this student's GPA. Round to the nearest hundredth.
Jerry's Grades, Fall Semester
Course Course Course
grade units
English A 3
Anthropology A 3
Chemistry B− 4
French C 3
Theatre B 2
Answer:
This student's GPA is 3.04.
Step-by-step explanation:
Student's GPA:
To find the students GPA, we find the sum of the multiplication of each numerical grade(A is 4, A- is 3.67 and so on) and the credit load of the course, divided by the number of courses.
His grades are:
4 in English worth 3 credits.
4 in Antropology worth 3 credits.
2.67 in Chemistry worth 4 credits.
2 in French worth 4 credits.
3 in Theatre worth 2 credits.
GPA:
[tex]\frac{4*3+4*3+2.67*4+2*4+3*2}{3+3+4+4+2} = 3.04[/tex]
This student's GPA is 3.04.
Answer:
3.04
Step-by-step explanation:
A taxi driver provides service in two zones of a city. Fares picked up in zone A will have destinations in zone A with a probability of 0.6 or in zone B with a probability of 0.4. Fares picked up in zone B will have destinations in zone A with a probability of 0.3 or in zone B with a probability of 0.7. The driver's expected profit for a trip entirely in zone A is 6; for a trip entirely in zone B is 8, and for a trip that involves both zones is 12. Find the taxi driver's average profit per trip.
Answer:
The taxi driver's average profit per trip is 4.4.
Step-by-step explanation:
Probability of fares picked up in zone A with destinations in zone A = 0.6
Probability of fares picked up in zone A with destinations in zone B = 0.4
Probability of fares picked up in zone B with destinations in zone A = 0.3
Probability of fares picked up in zone B with destinations in zone B = 0.7
The driver's expected profit for a trip entirely in zone A = 6
The driver's expected profit for a trip entirely in zone B = 8
The driver's expected profit for a trip involving both zones is 12
The taxi driver's average profit per trip:
zone A with destinations in zone A = 0.6 * 6 = 3.6
zone A with destinations in zone B = 0.4 * 12 = 4.8
zone B with destinations in zone A = 0.3 * 12 = 3.6
zone B with destinations in zone B = 0.7 * 8 = 5.6
Total profit expected for 4 trips = 17.6
Average profit per trip = 4.4 (17.6/4)
a tringle with sides of lengths 16, 30, and 35 is a right triangle
Answer: no
Step-by-step explanation:
when using the pythagorean theorm, the math doens't add up
16^2+30^2 does not equal 35^2
hope this helps!
Complete the set of data with value so that the mean of the data is 24
26, 35, 10, 18, 15, 37, 25, 20, 15, ?
26+35+10+18+15+37+25+20+15/9= 22.33
( BONUS POINTS PLEASE HELP ) the bases of a trapezoid are 24 ft and 6ft the height of the trapezoid is 12 ft what is the area of the trapezoid
Answer:
1728
Step-by-step explanation:
I cant understand the question that well but i think this is the right one
Answer:
180
Step-by-step explanation:
The formula to find the area of a trapezoid is base1 + base2. Multiply that by the height of the trapezoid, then divide your answer until that point by 2. When we do the same thing here we get:
(24+6)12/2
=30(12)/2
=360/2
=180
*Brainliest would be appreciated*
A textbook store sold a combined total of 354 history and sociology test books in a week. The number of history textbooks sold was two times the number of sociology textbooks sold. How many textbooks of each those were sold?
Answer: History textbooks sold = 236, Sociology textbooks sold = 118
Step-by-step explanation:
Given
- There are in total 354 books
- Let x be the number of sociology textbooks sold
- Let 2x be the number of history textbooks sold
Solve
Given
x + 2x = 354
Combine like terms
3x = 354
Divide 3 on both sides
3x / 3 = 354 / 3
x = 118
2x = 118 × 2 = 236
Hope this helps!! :)
Please let me know if you have any questions
Answer:
sociology textbooks = 118history textbooks = 236Explanation:
sociology textbooks = 2 × history textbooks
354/3 = 118
sociology textbooks = 118
history textbooks = 118×2 = 236
The hypotenuse of a right triangle is twice the length of one of its legs. The length of the other leg is three feet. Find the lengths of the three sides of the triangle. Enter an exact answer. Do not type your answers as fractions or decimals.
a^2 + b^2 = c^2
Let c = hypotenuse = 2x
One of the legs = x. Let a or b = x.
I will let a = x. We can then say that b = 3.
3^2 + x^2 = (2x)^2
9 + x^2 = 4x^2
9 = 4x^2 - x^2
9 = 2x^2
9/2 = x^2
sqrt{9/2} = sqrt{x^2}
3/sqrt{2} = x
Rational denominator.
[3•sqrt{2}]/2 = x = a
Side 3 is given to be 3 feet. So, b = 3.
Hypotenuse = 2x
Hypotenuse = 2([3•sqrt{2}]/2)
Hypotenuse = 3•sqrt{2}
Understand?
The three sides are 3, [3•sqrt{2}]/2 and
3•sqrt{2}.
Find the interquartile range (IQR) of the data in the box plot below.
cm
Amount of rain in Vietnam cities
(centimeters)
+
++
0 1 2
3
4
5
6
7
8
9
10
Stuck? Watch a video or use a hint.
Answer:
1.5 cm
Step-by-step explanation:
Interquartile range (IQR) = Q3 - Q1
From the box plot given, the third quartile (Q3) is the data value that falls exactly at the end of the edge of the rectangular box = 7 cm
The first quartile (Q1) is the data value exactly at the beginning of the edge of the box = 5.5 cm
Interquartile range (IQR) = 7 - 5.5 = 1.5 cm
1. Gracie and her son Landon are celebrating spring with an egg hunt! Gracie has hidden eggs filled with candy
for Landon to find.
(a) Landon finds a total of 27 eggs. One third of the eggs have 4 pieces of candy, the rest have 2 pieces of
candy. How many pieces of candy did Landon get?
(b) Gracie offers him a deal: he can either have three pieces of candy now, or if he waits until after lunch he
can have one-seventh of his candy. Which way gets Landon the most candy?
Answer:
a is 72 total pieces of candy
b is more candy if he waits and gets one-seventh
Step-by-step explanation:
a. 9 eggs have 4 so 9x4=36
leaving 18 eggs with 2 so 18x2=36
36+36=72 total
b. 3 now or...
1/7 x 72 = 10.28
Answer:
b.72×1/7=10.28
I think he can wait untul after lunch time
Step-by-step explanation:
Hope this right.But if it's not,im so sorry...Have a nice day
Determine the intercepts of the line I need help quick!!!!!
Answer:
x-inter = (-40,0), y-inter= (0,15)
Step-by-step explanation:
the fitnessgram pacer test is an automated aerobic capacity test that progressively gets more difficult as it continues.
1 Write the series 3 + 6x +9x2 +12x + ... with 45 terms in sigma notation.
Answer:
Step-by-step explanation:
It looks like every time the coefficient increases by 3 while the exponent increases by 1.
[tex]\\45\\\sum 3(n+1)x^{n}\\n = 0[/tex]
Notice it starts at zero so 3 is multiplied by (x+1) to make it start from 0
The exponent is simply n, because at the start is it zero [tex]x^0=1[/tex], then 1, then 2, so on.
The upper limit is 45 because 45 - 0 = 45 terms
hi I really need help with my math questions because I am on the edge of failing math class please help me out thank you!
The owner of an art supply store wants to know which arts are popular among her customers.
Select the methods that will likely create a representative sample.
1 - Group of answer choices
2 - Survey every employee who works in the store.
3 - Survey every customer whose name is picked randomly from a list of all customers.
4 - Survey every fifth person at a painting exhibition.
5 - Survey every fifth customer who purchases sketching supplies.
6 - Survey every customer who spends more than $200.
survey every employee who works in the store
Step-by-step explanation:
Tomas drew a rectangle with an area of 6 square centimeters.what is the greatest possible perimeter of this rectangle?Explain please. i want 20 answers please
Pls help i will mark brainliest
:D Stay cooool
Answer:
B) -40
C)22
D)-11
Step-by-step explanation:
a) 60
b) -40
c) 22
d) -11
hope it helps :D
Solve the systems of equations by using the substitution method,show your work.
3x - 8y = -50
6y = x
Please.Help
What is the radius?
What is the diameter?
What it the circumference? Use 3.14 for pi.
What is the area?
Use 3.14 for pi.
Answer:
Step-by-step explanation:
radius = 3mm
diameter = 6mm
circumference = 6 x 3,14 = 18.84 mm
area = 3^2 x 3,14 = 28.26 mm^2
Given a standardized normal distribution (with a mean of O and a standard deviation of 1), determine the following probabilities.
a. P(Z > 1.09) b. P(Z < -0.22) c. P(-1.96
d. What is the value of Z if only 8.08% of all possible Z-values are larger?
Answer:
a) P(Z > 1.09) = 0.1379
b) P(Z < -0.22) = 0.4129.
c) P(Z < -1.96) = 0.025, P(Z > -1.96) = 0.025
d) Z = 1.4
Step-by-step explanation:
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.
a. P(Z > 1.09)
This is 1 subtracted by the pvalue of Z = 1.09.
Z = 1.09 has a pvalue of 0.8621
1 - 0.8621 = 0.1379, so
P(Z > 1.09) = 0.1379
b. P(Z < -0.22)
This is the pvalue of Z = -0.22.
Z = -0.22 has a pvalue of 0.4129. So
P(Z < -0.22) = 0.4129.
c) P(Z < -1.96) or P(Z > -1.96)
Z = -1.96 has a pvalue of 0.025. So
1 - 0.025 = 0.975
P(Z < -1.96) = 0.025
P(Z > -1.96) = 0.025
d. What is the value of Z if only 8.08% of all possible Z-values are larger?
Z with a pvalue of 100 - 8.08 = 91.92 = 0.9192, so Z = 1.4
Select the correct answer.
Which is the apparent solution set of the system of equations graphed on the grid?
A.
{(-0.25,0), (4.25,0)}
B.
{(1,-4), (4,-1)}
C.
{(0,-5), (5,0)}
D.
{(0,-1), (2,-5)}
The solution set of the system of equations graphed on the grid is
{(1, -4), (4, -1)}. Hence, option B is the right choice.
What do we mean by the solution set to a system of equations?
The solution set to a system of equations is the set of all points that satisfies every equation in the given system.
How do we solve the given question?We are asked to find the apparent solution set of the system of equations graphed on the grid.
The solution set will be the set of common points on the graph as they satisfy both the equations in the given system.
The common points are (1, -4) and (4, -1), as the equations pass through these points simultaneously.
∴ The solution set of the system of equations graphed on the grid is
{(1, -4), (4, -1)}. Hence, option B is the right choice.
Learn more about the system of equations at
https://brainly.com/question/2226590
#SPJ2
What is the area of the triangle?
Answer:
11 ½ * 4* 5.52 *5.5=11.....….5 in
1 in 3 in
1 in 1 in
3 in
5 in
1 in
3 in
What is the surface area of the solid?
O A. 15 square inches
OB. 40 square inches
O C. 23 square inches
D. 46 square inches
Rabbit populations can double every 30
days. If there are 20 rabbits on a farm,
how many rabbits will be on the farm
after 210 days?
First, complete the equation:
Future Amount = [?](1+[]0
On Monday, 248 students went on a trip to the zoo. All 6 buses were filled and 8 students had to travel in cars. How many students were in each bus?
Answer:
40 students in each bus.
Step-by-step explanation:
Subtract the 8 extra students from the total to get the total number of students who rode in buses. Then divide that total by 6.
248-8=240
240/6=40
40 students in each bus.
What is the sum of 1 - 0.5 + 899
Answer:
899.5
Step-by-step explanation:
A point is chosen at random on AK what is the probability that the point will be on FI don't reduce
Answer: 3/10
Step-by-step explanation:
The probability that the point will be on FI is 3/10 if a point is chosen at random on AK the answer is 3/10.
What is probability?It is defined as the ratio of the number of favorable outcomes to the total number of outcomes, in other words, the probability is the number that shows the happening of the event.
We have a number line shown in the picture:
Total Number partition or gaps between each letter(between A and K):
= 10
Total number of outcomes = 10
Total number of favorable outcomes(between F and I) = 3
The probability that the point will be on FI:
By using the definition of the probability:
= favorable outcomes/total outcomes
= 3/10
Thus, the probability that the point will be on FI is 3/10 if a point is chosen at random on AK the answer is 3/10.
Learn more about the probability here:
brainly.com/question/11234923
#SPJ2
Un grupo de estudiantes alquila un piso por el que tienen que pagar 420 € al mes. Uno de ellos hace cuentas
y observa que si fueran dos estudiantes más, cada uno tendría que pagar 24 € menos. ¿Cuántos estudiantes
han alquilado el piso? ¿Cuánto paga cada uno?
Answer:
I dont know but i just need these points
Write an equation that can be used to find the degree measure of angle b
Don’t put links !
Answer:
Because they are supplementary angles, their sum is 180°.
∠b = 180° - 81°
∠b = 99°
Answer:
[tex]180-81=b[/tex]
Step-by-step explanation:
Supplementary angles are angles that add up to 180. Normally, they are supplementary because they lie adjacent to one another on a line.
In this base, b is supplementary to 81! Meaning, to find b we can simply subtract 81 from 180.
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