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Scorpion4ik [409]
2 years ago
8

Marcelo had $49.13 in his bank account. He paid two fees of $32.50 each, and then he made two deposits of $74.25 each. Write an

expression to represent the situation. *
Mathematics
2 answers:
kakasveta [241]2 years ago
4 0

Answer:

(32.50 x 2) - 49.13 - (74.25 x 2)

Step-by-step explanation:

49.13  (32.50 + 32.50) - 49.13

            $67.00 - $49.13

                    -17.87

                                                        $74.25 x 2 = $148.5

        148.5 - 17.87 = 130.63

Sergeu [11.5K]2 years ago
4 0

Answer:  49.13-2(32.50)+2(75.25)

Step-by-step explanation:

49.13-65.00+150.5

-15.87+150.5

134.63

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2 years ago
Two bumper cars are the EXACT SAME MASS and collide into each other's front bumper while traveling at the EXACT SAME VELOCITY. E
alexandr1967 [171]

Answer:

the effect

Step-by-step explanation:

its gonna release the mass into a crash happening so the bumper would fly off

7 0
1 year ago
Read 2 more answers
A large construction company wants to review the ages of its sales representatives. A sampling of the ages of 25 sales reps are
alexandr402 [8]
What you have to do to find the median of the data is first put that data into order numerically. You can go largest to smallest or smallest to largest, it doesn't matter.   <span>

22, 24, 28, 28, 30, 31, 31, 32, 32, 35, 36, 37, 38, 41, 42, 42, 44, 44, 45, 46, 46, 47, 47, 49, 50

Once you put them into order, you count towards the middle. You have 25 data points, so the middle, which will be your median number, will be 13 points in. 

The median is 38</span>
8 0
2 years ago
Read 2 more answers
A sociologist wishes to estimate the average number of automobile thefts in a large city per day within 2 automobiles. He wishes
anzhelika [568]

Answer:

n=(\frac{2.58(4.2)}{2})^2 =29.35 \approx 30

So the answer for this case would be n=30 rounded up to the nearest integer

Step-by-step explanation:

Information given

ME = 2 the margin of error desired

\sigma =4.2 standard deviation from previous studies

The margin of error is given by this formula:

ME=z_{\alpha/2}\frac{\sigma}{\sqrt{n}}    (a)

And on this case we have that ME =2 and we are interested in order to find the value of n, if we solve n from equation (a) we got:

n=(\frac{z_{\alpha/2} \sigma}{ME})^2   (b)

The critical value for 99% of confidence interval now can be founded using the normal distribution. The significance level is \alpha=0.01 and the critical value would be z_{\alpha/2}=2.58, replacing into formula (b) we got:

n=(\frac{2.58(4.2)}{2})^2 =29.35 \approx 30

So the answer for this case would be n=30 rounded up to the nearest integer

5 0
2 years ago
Identify two numbers less than 20 with the most factors
Anastaziya [24]

<u>Answer</u>

18 and 12


<u>Explanation</u>

Factor is a number or algebraic expression that divides another number or expression evenly that is with no remainder.

Odd number have few factors so the can't be the answer.

WE are going to try the even numbers.

18 ⇒ 18, 9, 6, 3, 2, 1

16 ⇒ 16, 8, 4, 2, 1

12 ⇒ 12, 6, 4, 3, 2, 1

10 ⇒ 10, 5, 2, 1

Other number less than 10 has factors less than 5.

It can be seen from above that 18 and 12 have the most factors.

3 0
2 years ago
Read 2 more answers
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