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2 years ago

100 POINTS!!!

Mathematics

2 answers:

vladimir2022 [97]2 years ago

3 0

7.76 is your answer

a_sh-v [17]2 years ago

3 0

<h3>Answer: B. $7.76</h3>

=========================================

Explanation:

Ignore the info about how much Margo spent.

Anthony spent $10.24 on lunch, before the tip. Then we add on the $2 tip to get a total of 12.24 dollars spent.

The amount of change is 20-12.24 = 7.76

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Here's how the cashier can mentally figure out how much change to give

Start with the number of cents from $12.24

The jump from 24 cents to 100 cents is 76 cents (24+76 = 100)

This gets us from 12.24 to 13.00

The jump from 13 to 20 is another 7 dollars.

So that's how we get 7 + 0.76 = 7.76 in change

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Choose whether the expression is a result of multiplying

vladimir1956 [14]

Answer:

neither

Step-by-step explanation:

Take out 5 as a common factor. It will be easier to look at.

5(5c^2 + 11c + 6)

5(5C +6 )(c + 1 )

Now you can put the 5 inside.

(25c + 30)(c + 1) is one answer.

(5c + 6)(5c + 5) is another.

The answer is multiplying binomials. There is nothing that that is squared and the answers are not conjugates. They are two binomials multiplied together.

8 0

2 years ago

Y’all I need help I need a good grade on this

Andreyy89

Answer:

SLOPE IS -3

Step-by-step explanation:

4-7 over 0-(-1)

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2 years ago

What is 5/9 as a decimal and percent?

ale4655 [162]

The answer is 0.555556 I really hope this helps!

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3 years ago

Read 2 more answers

What is 50% of 64?

Dmitriy789 [7]

Answer:

50% = 50/100 = 0.5

20% = 20/100 = 0.2

25% = 25/100 = 0.25

10% = 10/100 = 0.1

Now let's begin our calculation

50% of 64=(0.5*64)=32

20% of 55=(0.2*55)=11

25% of 16 = (0.25*16) =4

10% of 200=(0.1*200)=20

20% of 86=(0.2*86)=17.2

Step-by-step explanation:

Hope this helps <3

7 0

3 years ago

Read 2 more answers

It is advertised that the average braking distance for a small car traveling at 65 miles per hour equals 122 feet. A transportat

madreJ [45]

Complete Question

The complete question is shown on the first uploaded image

Answer:

the null hypothesis is $H_o : \mu = 122$

the alternative hypothesis is $H_a : \mu \ne 122$

The test statistics is $t = - 1.761$

The p-value is $p = P(Z < t ) = 0.039119$

$p \ge 0.01$

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 122$

The sample size is n= 38

The sample mean is $\= x = 116 \ feet$

The standard deviation is $\sigma = 21$

Generally the null hypothesis is $H_o : \mu = 122$

the alternative hypothesis is $H_a : \mu \ne 122$

Generally the test statistics is mathematically evaluated as

$t = \frac { \= x - \mu }{\frac{ \sigma }{ \sqrt{n} } }$

substituting values

$t = \frac { 116 - 122 }{\frac{ 21 }{ \sqrt{ 38} } }$

$t = - 1.761$

The p-value is mathematically represented as

$p = P(Z < t )$

From the z- table

$p = P(Z < t ) = 0.039119$

$p \ge 0.01$

4 0

3 years ago