Answer: z=115 x=6
Explanation: 14x-19 + 115 = 180
115 = z
Can you find the slope-intercept equation of each line and type the correct code? Please remember to type in ALL CAPS with no spaces.
Answer:
Step-by-step explanation:
line 1 is H
line 2 is C
line 3 is D
line 4 is G
:)
In a class of 40 students, the number of girls is 10 more than the number of boys. We have to find the number of girls and the number of boys in the class.
Let’s represent the number of girls by g, and the number of boys by b. Write the pair of linear equations you will get in g and b :
Answer:
b=15 g=25
Step-by-step explanation:
lets translate that story problem to mathematics equations
the problem told that no. of girls are 10 more than no of boys so this will =
g=b+10
then in class there are 40 students that means
g+b=40
now we have to equations with two variables then we should substitute
(b+10)+b=40
lets remove the brackets
2b+10=40 subtract 10 from both sides
2b=30 now divide both by 2
b=15 so g=25 after you write the equation once again with the new proof or number
Circle O has a circumference of approximately 44 in.
What is the approximate length of the diameter, d?
0 7 in
0 14 in.
d-11-
0 22 in
044 in
Answer:
44
Step-by-step explanation:
because yea
A study has been made to compare the nicotine contents of two brands of cigarettes. Ten cigarettes of Brand A had an average nicotine content of 3.1 milligrams with a standard deviation of of 0.5 milligram, while 8 cigarettes of Brand B had an average nicotine content of 2.7 milligrams with a standard deviation of 0.7 milligram. Assuming that the two sets of data are independent random samples from normal populations with equal variances, construct a 95% confidence interval for the difference between the mean nicotine contents of the two brands of cigarettes.
Answer:
−0.2226 ; 1.0226
Step-by-step explanation:
Given :
n1 = 10 ; n2 = 8 ; s1 = 0.5 ; s2 = 0.7 ; x1 = 3.1 ; x2 = 2.7
Confidence interval, two - sample, t procedure ;
μ1 - μ2 = (x1 - x2) ± Tcritical*S
S = sqrt[(s1²/n1) + (s2²/n2)]
S = sqrt[(0.5^2/10) + (0.7^2/8)]
S = sqrt[0.08625]
S = 0.2937
Tcritical at 95% confidence interval
df = 10+8 - 2= 16
Tcritical = 2.12
(3.1 - 2.7) ± 2.12*(0.2937)
0.4 ± 0.6226
(0.4 - 0.6226) ; (0.4 + 0.6226)
−0.2226 ; 1.0226
roshaun has saved 150$ and continues to add 10$ each week. Keegan starts with 0$ and saves 25$ each week. In how many weeks will they have the same amount of money?
Answer:
10 weeks
Step-by-step explanation:
Create a system of equations demonstrating Roshaun and Keegan's savings.
Roshaun: 150 + 10x Keegan: 0 + 25xLet x equal the number of weeks they save their money.
In order to calculate how many weeks they will have the same amount of money saved, we need to set their equations equal to each other and solve for x.
150 + 10x = 25xSubtract 10x from both sides of the equation.
150 = 15xDivide both sides of the equation by 15.
x = 10In 10 weeks, Roshaun and Keegan will have the same amount of money.
The functions r and s are defined as follows.
r(x) =- 2x+2
s(x)=x²-2
Find the value of r(s (-2)).
r(s(-2)) = 1
口口
Х
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Answer:
r(s(-2)) = -2
Step-by-step explanation:
We are given these following functions:
[tex]r(x) = -2x + 2[/tex]
[tex]s(x) = x^2 - 2[/tex]
Find the value of r(s (-2)).
First we find the composition of r and s functions. It is:
[tex]r(s(x)) = r(x^2-2) = -2(x^2-2) + 2 = -2x^2 + 6[/tex]
At x = -2
[tex]r(s(-2)) = -2(-2)^2 + 6 = -8 + 6 = -2[/tex]
r(s(-2)) = -2
One Positive number is five times another number the difference between the two numbers is 172 to find the numbers
Answer:
x= 43, y=215
Step-by-step explanation:
Let one number be x,
Let the other number be y.
x= 5y
x - y= 172
Putting value of x in equation 2.
5y - y = 172
4y = 172
y= 172/4
y= 43
Putting value of y in eq. 1
x= 5(43)
x=215.
In a woodworking class, you need to make five triangles out of plywood. Each triangle has a height of 6 inches and a base of 14 inches. Which equation can you use to solve for the total amount of plywood you will need?
Answer:5 * (1/2 * 6 * 14)= x
Step-by-step explanation: :D
the answer options are
6.75
-1.5y
-3x
thank you :))
Answer:
-1.5y
Step-by-step explanation:
+y(–1.5) = -1.5y
This is how distribution works
Answer:
-1.5y
Step-by-step explanation:
have a nice weekend ヽ(ヅ)ノ
The total area of a rectangle is represented by (x²+9 x+18) sq units.Find the expression for the dimensions of the rectangle.
Answer:
x+3 units and x+6 units
Step-by-step explanation:
Give the total area of a rectangle is represented by (x²+9 x+18) sq units.F
Factorize
x²+9 x+18
- x^2 + 6x + 3x + 18
= x(x+6) + 3(x+6)
= (x+3)(x+6)
Since Area = Length * Width
The dimensions of the rectangle are x+3 and x+6 units
A beetle was running along a number line...The the bug ran from 13 to 57. What distance did it cover?If it took the bug 5 seconds, what was its average speed?
Answer:
8.8
Step-by-step explanation:
57-13=44
so the distance is 44 considering that it's on a number line.
Average speed = distance ÷ Time
44÷5=8.8
2/8 of 24=
2/8 times 24=
Answer:
2/8 of 24 is 6
2/8 times 24 is 6 also
PLEASE HELP (COMPLETE QUESTION B) 5TH GRADE MATH. GIVING AWAY BRAINLIEST
Answer:
Now that you have a completed table, you will have the coordinates (0, -3), (1, -1), and (2, 1). Mark these points on the coordinate grid and draw a straight line through the origin, (0, 0). Use part a as your advantage to answer part b.
Rewrite in simplest form: 8(2x)
Answer:
Probably is 16x
Answer:
8×2x
Step-by-step explanation:
As u know that the bracket mean multiplication
find the highest common factor of 20,10and25
Answer:
5
Step-by-step explanation:
5, 10, 15, 20, 25
5, 10, 15, 20, 25
5, 10, 15, 20, 25
Hope this helps!!!
Have a great day!!!! :)
Answer:
5
Step-by-step explanation:
factors of 20:
1, 2, 4, 5, 10, 20
factors of 10:
1, 2, 5, 10
factors of 25:
1, 5, 25
as you can see from the factor list of each number, 5 is the higest common factor.
173 The midpoint between x and a is m. What is x ?
If so, [tex]m=\frac{x+a}{2}[/tex] when solved for x will yield [tex]x=2m-a[/tex].
Hope this helps.
Hurry I really need it I have a timer
Answer:
228 m^2
Step-by-step explanation:
I rly hope im not to late
base is 6x6=36
each side is 8x6=48
48x4=192
192+36=228
How many solutions does this equation have?
–9 − 5p = –2 − 5p
Answer:
no solutions
Step-by-step explanation:
Find the area of each figure. Round to the nearest tenth if necessary
Answer:
59.3
Step-by-step explanation:
First find the area of the the right triangles
5 * 4 / 2 = 10
Multiply it by 2 since there are 2 right triangles that are the same
10 * 2= 20
Then find the area of a semi circle
The radius is 5
π5^2 / 2= 39.27
39.27 rounded to the nearest tenth is 39.3
Add them together
20 + 39.3 = 59.3
59.3 is your answer
A square playpen has sides that are 4 feet long. What is the playpen's area?
Answer:
16
Step-by-step explanation:
helppp guys i really don't get it
9514 1404 393
Answer:
(b) ... confirm ∠C≅∠E
Step-by-step explanation:
The first step is to read and understand the problem statement. It is asking for a way to prove ΔABC ~ ΔADE by AA similarity. That means you want to show any two of the three ...
∠A≅∠A∠B≅∠D∠C≅∠EFor this purpose, lengths of line segments are irrelevant (eliminating the last two answer choices). The fact that ∠A≅∠A is given, so you only need to find an answer choice that will show one of the last two angle congruences.
Obviously, showing ∠B≅∠E (choice A) is not relevant to the problem.
The only answer choice that is relevant to the question is the second one, showing ∠C≅∠E.
What is the prime factorization of 120
Here is a picture of a cube and the net of this cube what is the surface area of this cube enter your answer in the box
Answer:
Step-by-step explanation:
a = 12 mm
Surface area of cube = 6a²
= 6 * 12 * 12
= 864 cubic mm
I need help with this question please
 
Supposed you know that Ls and LY are complementary, and that mLS=3(mLY)-90°
The value of mLY is
Someone help me with this question!!
9514 1404 393
Answer:
∠Y = 45°
Step-by-step explanation:
The sum of complementary angles is 90°.
∠Y + ∠S = 90°
∠Y + (3(∠y) -90°) = 90°
4∠Y = 180° . . . . . . . . . . . . add 90°, collect terms
∠Y = 45° . . . . . . . . . divide by 4
The measure of angle Y is 45°.
Sean traded 1/7 of his baseball cards. What percentage of his baseball cards did Sean trade?
Answer:
Step-by-step explanation:
14%
10=2x+12
What’s the steps
Answer: i got 10
Step-by-step explanation:
what ud o is 2x+12 let me see
Marcos has 15 coins in nickels and quarters. He had 3 more quarters than
nickels. How many nickels and quarter does he have?
-x+3y=-1 x-3y=1
one solution, no solution, or infinitely many solutions
PLEASE HELP
Answer:
infinitely many solutions
Step-by-step explanation:
-x + 3y= -1
x - 3y =1
0=0
identity solution
Multiply. 8.3 x 6.4 Enter your answer in the box.
Answer:
53.12
Step to Step reasoning:
8.3 x 6.4 = 53.12
A fair die is a cube with number 1 through 6 on the sides, represented as painted spots. If a fair die is rolled, what is the probability of number 6 landing face up?
Answer:
The First Part is A. 1/6
The Second Part is 1
The Third Part is B. 3
And The Fourth Part is B. Different
Step-by-step explanation:
Just took it. Edg 2021. Hope this helps :) (Da smiley is George, George says hi)
The probability of number 6 landing face up is 1/6.
What is Probability?Probability refers to potential. A random event's occurrence is the subject of this area of mathematics.
The range of the value is 0 to 1. Mathematics has incorporated probability to forecast the likelihood of various events.
The degree to which something is likely to happen is basically what probability means.
Given:
We have roll a die with number 1 to 6.
So, the possible outcome
{1, 2, 3, 4, 5, 6}
Then, the probability of number 6 landing face up
= 1 / 6
Hence, the probability is 1/6.
Learn more about probability here:
https://brainly.com/question/30034780
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