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scoundrel [369]
3 years ago
6

Jaqleen can unload a grocery truck twice as fast as Marco. Together, they can unload the truck in 5 hours. How long would it tak

e each of them working alone to unload the truck
(show Your work)
Mathematics
1 answer:
amm18123 years ago
7 0

Jaqleen unloads a truck in x hours and Marco takes 2x hours.

Working together (x*2x) / (x+2x) = 5 hours

2x^2 / 3x = 5  Multiplying both sides by 3x equals 2x^2 -15x = 0

x = 7.5 hours

So Jaqleen takes 7.5 hours and Marco takes 15 hours

Double-Check (7.5 * 15) / (7.5 + 15) = 112.5 / 22.5 equals

5 hours Correct!!


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7 0
3 years ago
Pete, Lulu and Liza are walking in the Boston downtown. Each time Pete takes 4
Rasek [7]

If Liza takes 120 steps, then the number of steps taken by Pete will be 72.

<h3>What are a ratio and a proportion?</h3>

A ratio is an ordered set of integers a and b expressed as a/b, with b never equaling 0. A percentage is a mathematical expression in which two things are equal.

Pete, Lulu, and Liza are walking in the Boston downtown. Each time Pete takes 4 steps, Lulu takes 3 steps. Each time Lulu takes 5 steps, Liza takes 4 steps.

Then the relation between is given as

4 Pete → 4 Lulu

5 Lulu → 4 Liza

Then we have

\rm \dfrac{5}{3} \times 4 \  Pete  \rightarrow \dfrac{5}{3} \ Lulu \rightarrow 4 \ Liza

If Liza takes 120 steps, then the number of the step taken by Pete will be

\rm \dfrac{5}{3} \times 4 \  Pete  \rightarrow 4 \times 120 \\\\Pete  \rightarrow 72

More about the ratio and the proportion link is given below.

brainly.com/question/14335762

#SPJ1

7 0
2 years ago
In the diagram below, m Find m
Andrews [41]

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Step-by-step explanation:

8 0
3 years ago
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Your answer is D. 
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4 0
3 years ago
A 450 square foot apartment in New York City cost 540,000. What is the price per square foot explain or show your reasoning
Anton [14]

The cost of per square foot is 1200.

Step-by-step explanation:

Given,

Total area = 450 Square foot

Total cost = 540000

Cost of per square foot = \frac{Total\ cost}{Total\ Area}

Cost\ per\ square\ foot=\frac{540000}{450}\\Cost\ per\ square\ foot= 1200

The cost of per square foot is 1200.

Keywords: Area, Division

Learn more about division at:

  • brainly.com/question/11280112
  • brainly.com/question/11286417

#LearnwithBrainly

8 0
3 years ago
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