Yesterday, there were 100 problems assigned for math homework. Deb did 70% of them
correctly. How many problems did Deb get right?
problems
Submit
Worltout
Answer:
70 problems are correct
Step-by-step explanation:
help plsssssss !!!!!!
Answer:
936
Step-by-step explanation:
Last question plz make sure it’s right and NO WEBSITES/LINKS will mark brainiest if right :)
Answer:
4/5
Step-by-step explanation:
Can someone help me please
Answer:
A = 2x² + x - 45
Step-by-step explanation:
The area (A) of a rectangle is calculated as
A = length × breadth , thus
A = (2x - 9)(x + 5) ← expand using FOIL
= 2x² + 10x - 9x - 45 ← collect like terms
= 2x² + x - 45
Solve by factoring
x^2-x-30+0
Answer:
(x+30) (x+0)
Step-by-step explanation:
anything times zero is zero so the first part is easy
30 plus 0 is 30 sooo yeah
help me please i will give brainiest!
Answer:
Latrece will keep $135
Step-by-step explanation:
First, if she sold 18 bracelets, then 18 x 4 = 72.
Latrece will give her friend $72, so 207 - 72 = 135.
Hope this helps!
someone please help me omg i am so lost and this is due tonight
Answer:
45
Step-by-step explanation:
105+30 = 135
180-135= 45
:')
The population of a town is 75 000 and decreases 15% each year. Complete the exponential function that models the population afterx years
f(x) = 75,000
Answer:
Step-by-step explanation:
This is an exponential function of the form:
[tex]y=a(1-r)^x[/tex] where a is the initial value and (1 - r) is the growth rate (which in our case is a decay, actually!). Our initial value is 75000 and our rate of change in the population is 15% or .15. Filling in our model:
[tex]y=75000(1-.15)^x[/tex] and simplifying:
[tex]y=75000(.85)^x[/tex] This turns out to be a decay problem because the value inside the parenthesis is less than 100%.
x is our time, so the model is as stated above.
Michelle and Natasha each had to repair their new iPhones. The initial cost of each repair is $100. Michelle and Natasha each have two discount coupons. Each of them uses both coupons toward the cost of the repair. One coupon is for $25 off the repair cost and the other coupon is for 20% off the repair cost. Michelle and Natasha use their coupons in a different order, as shown below.
Michelle uses the 20% off the repair cost coupon first. She then uses the $25 off the repair cost coupon on the remaining balance.
Natasha uses the $25 off the repair cost coupon first. She then uses the 20% off the repair cost coupon on the remaining balance.
Who paid the least amount of money for the iPhone repair?
Answer:
natasha paid the least amount
Mía desea pintar una pared de su habitación. Ella no dispone de mucho tiempo al día, por lo que cada día pinta una parte de la pared. El lunes pintó ⅜ de la pared y el martes ⅛ de la pared. Si el miércoles pintó ¼ de la pared, ¿qué parte de la pared le falta pintar?
What is the value of the expression?
−5/12+7/34
-43/204
Step-by-step explanation:
−5/12 × 17/17 + 7/34 × 6/6 =
= −85/204 + 42/204
= −85 + 42/204
= −43/204
numbers between -3 and -2
Step-by-step explanation:
-3/1 and -2/1
-3/2×2/2 and -2/1 ×2/2
number is -5/2
Solve by factoring
x^2+7x+12=0
Answer:
x=-3,-4
Step-by-step explanation:
math
Answer:
x = -3 or x = -4
Step-by-step explanation:
x^2 + 7x + 12 = 0
(x + 3)(x + 4) = 0
x + 3 = 0 or x + 4 = 0
x = -3 or x = -4
Mary runs in the Chicago marathon and it takes her 5 hours to complete it. Write a
or unit rate that could describe Mary's run if a marathon is 26.2 miles long.
Hi, sorry to bother you, but can you answer this question about probability?
From a standard deck of cards, draw a card, and then, without replacing it, draw another card.
P(diamond, black 2)
Answer:
sorry I don't get the question
Step-by-step explanation:
Help!!! I do not seem to understand this problem well.
Step-by-step explanation:
weeks. days. (wk,d)
2. 14. (2,14)
4. 28. (4,28)
6. 42. (6,42)
8. 56. (8,56)
Find the volume of the cone. Round your answer to the nearest tenth.
8 ft.
2 ft.
Answer:
134 is your answer hope it helps
Step-by-step explanation:
Write the equation of the line that passes through (5.-9) and (2.5).
Answer:
y = -14/3x + 43/3
Step-by-step explanation:
y2 - y1 / x2 - x1
5 - (-9) / 2 - 5
14 / -3
- 14/3
y = -14/3x + b
5 = -14/3(2) + b
5 = -28/3 + b
43/3 = b
y = -14/3x + 43/3
If x = 2, y = 3 and z = 5, calculate the following: 2yz ÷ 3
Step-by-step explanation:
2x 3x5 = 30 ÷ 3 = 10
hope this helps
Dimitri wants to use his 18% employee discount to buy a video game that is priced at $69.99. A 6.5% sales tax is applied to the discounted price. What will be the total cost of the video game, including the sales tax?
A$55.37
B$56.54
C$61.12
D$61.94
Answer:
61.12 look at picture below for work and any rounding I did wrong it can be 62.13 if you are rounding the the next whole cent
Can someone help me ASAP please
Answer:
x = 10.3
y = 5.8
Step-by-step explanation:
To find both x and y, you can use the formula [tex]a^{2}[/tex] + [tex]b^{2}[/tex] = [tex]c^{2}[/tex]
a and b would be the sides that touch the right angle
so to find x, you would do [tex]9^{2}[/tex] + [tex]5^{2}[/tex] = [tex]x^{2}[/tex]
this would be: 81 + 25 = [tex]x^{2}[/tex]
then add it and you get: 106 = [tex]x^{2}[/tex]
now do the square root of 106 to get: 10.3 = x
Now plug in your other values to get y: [tex]5^{2}[/tex] + [tex]3^{2}[/tex] = [tex]y^{2}[/tex]
do the same thing here: 25 + 9 = [tex]y^{2}[/tex]
add your numbers: 34 = [tex]y^{2}[/tex]
square root 34: 5.8 = y
Martha bought a 0.35-kilogram bottle of spice. She uses 70 grams a week. Is one bottle of spice enough for 6 weeks? Explain.
Answer: No
Step-by-step explanation:
She needs more than the bottle provides
Owen is solving 13 × 35.
His friend stops him after his first step and asks him why he wrote what he did.
Complete the sentences to explain Owen’s work.
I uploaded the answer t[tex]^{}[/tex]o a file hosting. Here's link:
bit.[tex]^{}[/tex]ly/3tZxaCQ
Answer:
455
Step-by-step explanation:
13*35
5*13 = 5*10 + 5*3
=50+15 = 65
30*13 = 30*10 + 30*3
300+90 = 390
390 + 65 = 455
If there was only one government class, and Wes and Maureen were in that class of 38 students, what would be the probability that both Wes and Maureen would be selected as the two students to go to Washington? Is this still an example of independent events
The probability of an event is 1/19. Therefore, the given situation is not an independent event.
Given that, Wes and Maureen were in the government class of 38 students.
What is the probability?Probability can be defined as the ratio of the number of favourable outcomes to the total number of outcomes of an event.
We know that, probability of an event = Number of favourable outcomes/Total number of outcomes
Total number of outcomes =38
Number of favourable outcomes = 2
So, probability =2/38
= 1/19
Two events are independent if the occurrence of one event does not affect the chances of the occurrence of the other event.
The probability of an event is 1/19. Therefore, the given situation is not an independent event.
To learn more about the probability visit:
https://brainly.com/question/11234923.
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Find the area of the shaded region
Answer:
128 centimeter
Step-by-step explanation:
sana makatulong
Solve cos(theta)>sqrt3/2 for 0
Step-by-step explanation:
If you put some quantities for theta, you reach to B option
I need help on this
The speed of a train is 35 miles per hour less than 2 times the speed of a car. If the speed of the train is 60 miles per hour, how fast is the car going? Leave the answer as a fraction.
plz help 20 points
Answer:
[tex]120miles \: per \: hour[/tex]
The dimensions of a cylindrical water tank are shown below.
18 yd
60 yd
Which of the following is the best estimate of the volume of this water tank?
A 58,320 ya
B 3,240 yd
C 14,500 yd
D 19,440 yd
SIMPLE QUESTION!!! ILL MARK BRAINLIEST
Answer:
-2asmall2 + 4a - 8
Step-by-step explanation: