MATHEMATICS COLLEGE

What is the opposite of the three rational numbers.
|-13| =
|14| =
- |42| =

Answers

Answer 1
Answer:

Answer:

|-13| = 13, so the opposite is -13

|14| = 14, the opposite is -14

-|42| = -42, the opposite is 42

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A football team loses 2 yards every 5 minutes. How many yards did the team lose after 15 minutes?

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Answers

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Let's solve :

  • 5(x - 3) > 15

  • (x - 3) > 15 / 5

  • x - 3 > 3

  • x > 3 + 3

  • x > 6

QuestionAlice drove from the town of Everett to the town of Gage at an average speed of 45 miles per hour. If she
Grove for 40 minutes, how far did she travel? (1 hour = 60 minutes)

Answers

45 miles per hour is equal to 45 miles per 60 minutes. Let’s make it into a ratio, 45:60, and simplify it to 3:4 by dividing each by 15. Now, we can multiply the simplified ratio by 10 to get 30:40, which translates to 30 miles in 40 minutes.

Answer: 30 miles

A masonry contractor is preparing an estimate for building a stone wall and gate. He estimates that the job will take a​ 40-hour work week. He plans to have two laborers at ​$10 per hour and six masons at ​$21 per hour.​ He'll need ​$3337 worth of materials and wishes to make a profit of ​$400. Write a mathematical statement that will give the estimated cost of the job. Then calculate this total.

Answers

Answer:

$9,577

Step-by-step explanation:

Given:

Estimated time for the job = 40 hours

Number of laborers = 2

Per hour laborers cost = $10

Number of masons = 6

Per hour mason cost = $21

Worth of material = $3337

Estimated Profit = $400

Now,

The total amount spent on laborers

= Number of laborers × total working hours × Cost per hour

= 2 × 40 × $10

= $800

The total amount spent on masons

= Number of masons × total working hours × Cost per hour

= 6 × 40 × $21

= $5040

Hence,

the total estimated cost for the job

The total amount spent on laborers                                    $800

The total amount spent on masons                                     $5,040

Worth of material                                                                   $3,337

Estimated Profit                                                                      $400

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

Total estimated cost                                                               $9,577

How to work the problems and explain step by step by showing the work

Answers

well, you're asked to simply grab the second version of that amount, or balance, and provide a common factored version of it, is all

so \bf A_2=(P+Pr)+(P+Pr)r\n\n\textit{now, let's take common factor}\n\nA_2=\underline{(P+Pr)}+\underline{(P+Pr)} r\impliedby \textit{see the common factor?}\n\nA_2=\underline{(P+Pr)}(1+r)

Choose the expression that completes the equation 33 / 3 + 10=_______1. 2(10+1)

2. 10(1+1)

3. 3(6+1)

4 5(3+5)
​

Answers

Answer:

the answer is number 3. 3 ( 6+1 )
Number one would be your answer because 33/3+10 equals to 21 and 2(10+1) equals 21 as well.

Hope this helped

Mary runs 7 miles in 60 minutes. At the same rate, how many miles would she run in 24 minutes?

Answers

7 miles / 60 minutes = x miles / 24 minutes

cross multiply and simplify to get 2.8 miles. 

So, Mary can run 2.8 miles in 24 minutes at the same rate. 
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