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Paladinen [302]
3 years ago
7

Answered 36 problems correctly. The grade was 45%. They would like to score a 75% on the next retake test. How many more problem

s do they need to answer correctly.
Mathematics
1 answer:
puteri [66]3 years ago
6 0

Answer:

24

Step-by-step explanation:

0.45 = 36/x

x = 80, where x is the total number of questions

0.75 = z/80

z = 60, where z is the number of correct answers

60-36=24 more problems correct

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Simplify x squared over x
umka21 [38]

see the attached picture for full details

6 0
3 years ago
A cookie recipe calls for 1/3 of a cup of sugar and 1 1/2 cups of flour. What is the unit rate of flour to sugar for the cookie
Serggg [28]

Answer:

Rate = 4.5

Step-by-step explanation:

It is given that,

A cookie recipe calls for 1/3 of a cup of sugar and 1 1/2 cups of flour.

We need to find the unit rate of flour to sugar for the cookie recipe. It can be calculated as follows :

U=\dfrac{\text{No of cups of flour}}{\text{No of cups of sugar}}\\\\=\dfrac{1\dfrac{1}{2}}{\dfrac{1}{3}}\\\\=\dfrac{\dfrac{3}{2}}{\dfrac{1}{3}}\\\\=\dfrac{3}{2}\times 3\\\\=4.5

So, the unit rate of flour to sugar for the cookie recipe is 4.5

6 0
3 years ago
Heather made a total of $451.78 last month at her part-time job. If she worked 14 hours, how much did she make per hour?
Step2247 [10]
The amount of money divided by the amount of hours will give you how much money she makes per hour.

451.78/14=32.27.

She earned $32.27 per hour.
3 0
3 years ago
A game consists of randomly choosing a bag (labelled 1, 2 or 3) out of a choice of 100, and then again randomly, picking a ball
Scorpion4ik [409]

Answer:

the answer is 112

Step-by-step explanation:

8 0
3 years ago
PLS HELP!!
inna [77]

The correct answer are as follows:

A. False

B. True

C. False

D. False

<h3>What is Function?</h3>

The functions are the special types of relations. A function in math is visualized as a rule, which gives a unique output for every input x.

A. Since x-intercepts indicate the amount of each bacteria at the start of the experiment, there was more of bacteria B than bacteria A at the start.

False, it is the y-intercept of the function that indicates the amount at the start of the experiment.

B. Since y-intercepts indicate the amount of each bacteria at the start of the experiment, there was more of bacteria B than bacteria A at the start.

True, the y-intercept is given when x = 0, indicating the initial value of the function.

C. Since the maximum value in the table for bacteria A is greater than the maximum value in the table for bacteria B, bacteria A has a faster growth rate than bacteria B.

False, because the maximum value of each table is given in different times, and also the initial value of each table is different.

D. Since the minimum value in the table for bacteria A is less than the minimum value in the table for bacteria B, bacteria A has a slower growth rate than bacteria B.

False, the growth rate is not given by the initial value. If we model both tables with an exponential function, the count of bacteria A quadruped in two days, and the count of bacteria B doubled in one day, so they have the same growth rate.

Learn more about Function from:

brainly.com/question/12431044

#SPJ1

6 0
2 years ago
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