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Natalka [10]
3 years ago
10

You have two dollars and 50 Cent the gumballs in the machine cost $.25 each right and solve an inequality represents the number

of gumballs you can buy
Mathematics
1 answer:
vladimir2022 [97]3 years ago
5 0

Answer:

The maximum number of gumballs you can buy is 10

Step-by-step explanation:

Let

x ---->represents the number of gumballs you can buy

we know that

The number of gumballs you can buy multiplied by it cost must be less than or equal to $2.50 (two dollars and 50 cents)

so

The inequality that represent this situation is

0.25x\leq 2.50

solve for x

Divide both sides by 0.25

x\leq 10

therefore

The maximum number of gumballs you can buy is 10

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9. Your mathematics instructor claims that, over the years, 88% of his students have said that math is their favorite class. In
Tatiana [17]

Answer:

Step-by-step explanation:

For the null hypothesis,

H0: p = 88

For the alternative hypothesis,

Ha: p < 88

Considering the population proportion, probability of success, p = 0.88

q = probability of failure = 1 - p

q = 1 - 0.88 = 0.12

Considering the sample,

Sample proportion, P = x/n

Where

x = number of success = 21

n = number of samples = 32

P = 21/32 = 0.66

We would determine the test statistic which is the z score

z = (P - p)/√pq/n

z = (0.66 - 0.88)/√(0.88 × 0.12)/32 = - 3.83

The corresponding p value would be determined by looking at the normal distribution table for the area below the z score. Therefore,

P value = 0.00006

8 0
3 years ago
Ruben adds some water to a glass of juice. The ratio of water to juice in his glass in now 4:6. Which fraction below represents
zimovet [89]

Answer:

C

Step-by-step explanation:

since we're being told to convert the ratio to fraction then it is C. note that 4 ratio is also the same as dividing 4 by 6

6 0
3 years ago
Carl saved $22 in the last 3 weeks.<br> About how much will he save after 20<br> weeks?
olga_2 [115]

22 / 3 = 7.3333

7.3333 * 20 = 146.67

$146.67

5 0
3 years ago
The table below shows the different combinations of honey and oats that can be used in making granola.
posledela

Answer:

C

Step-by-step explanation:

PLEASE MARK BRAINLIEST

8 0
2 years ago
Read 2 more answers
A) A pack of 8 batteries cost £3.99 how much dose each battery cost? ( give your answer in penny ?) ____________________________
just olya [345]

Answer:

A). 50 penny

B) This type of battery is cost effective.

Step-by-step explanation:

A) A pack of 8 batteries cost 3.99 pounds so one battery will cost = 3.99/8 = 0.499 pound

Since 1 pound = 100 penny

So 0.499 pound = 100×0.499 = 50 penny

B). A pack of 6 batteries of the same type costs 2.79 pounds

So one battery will cost = 2.79/6 = 0.465 pound  or 47 penny

Now we say that type A batteries are costlier than B. Therefore B type batteries are of a better value.

6 0
3 years ago
Read 2 more answers
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