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Fiesta28 [93]
3 years ago
13

21 trucks, each with a 2.5-ton payload, are needed to unload a freight train. How many trucks, each with a 3.5-ton payload, woul

d be needed to do the same job? What is the constant of variation?
Mathematics
1 answer:
castortr0y [4]3 years ago
6 0
Tons needed to unload a freight train= 21×2.5 =52.5
number of 3.5-ton payload trucks needed to unload a freight train=52.5÷3.5 = 15

15 Trucks , Each With A 3.5-Ton Payloaf , Would be Needed To Do The Same Job. 

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jasenka [17]

Answer:

13 candy bars

Step-by-step explanation:

i don't get the joke part but I answered for the points

7 0
3 years ago
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Mark and ann together were allocated n boxes of cookies to sell for a club project. mark sold 10 boxes less than n and ann sold
Lady bird [3.3K]
<span>n = 11<span>.

Explanation:
Let m be the number of boxes Mark sells and a be the number of boxes Ann sells.

Since Mark sells 10 less than n, m = n-10. Since Ann sells 2 less than n, a = n-2.

Together, they sold n-10+n-2=2n-12 boxes.

We know that they sold less than n boxes, so our inequality would be
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To solve this, subtract n from both sides:
2n-12-n<n-n; n-12<0.

Add 12 to both sides:
n-12+12<0+12; n<12.

This means there were less than 12 boxes. The next number down is 11; this woks because Mark sold 10 less than n; 11-10=1. Mark sold at least 1 box.

If n=10, however, 10-10=0; this doesn't work, because Mark did sell at least 1 box.  </span></span>
3 0
3 years ago
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There are 1 1/3 pounds of bricks in a bag. Each brick weighs 2/3 of a pound. How many
Alexus [3.1K]

Answer:

There are two bricks in the bag.

Step-by-step explanation:

1 1/3 can be written as 4/3 bricks in a bag.

(4/3)/(2/3) = 2

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2 years ago
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Answer:

f-1(x)=x+1/3 is yr answer.

<h3>stay safe healthy and happy .</h3>
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Round to the nearest whole number. Simplify (5(12 - 2)2 + 7]/3=
mario62 [17]

(5(12-2)2+7)/3

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107/3

35.66666...

<h2><em>36</em></h2>
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