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goldfiish [28.3K]
3 years ago
6

a carpenter goes through 2 3/5 boxes of nails finishing 3 1/2 rooves. How much would he use finishing 8 roves?

Mathematics
1 answer:
nordsb [41]3 years ago
7 0
Find the unit rate first, and then multiply it by 8:

2 3/5 boxes
---------------- = 13/5 divided by 7/2.
3 1/2 roofs

You can obtain the correct result by inverting the divisor, 7/2, and then multiplying:

13/5 times 2/7.   This comes out to 26/35.  That represents 26/35 box of nails per roof.

To do 8 roofs (not roves), you'd need (26/35)(8/1) boxes:  5.94 boxes.  Why not buy 6 boxes to be sure you'll have enough?


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Apples sell for $1.90 per pound, and bananas sell for $0.75 per pound. Troy bought some apples and some bananas. Together they w
matrenka [14]

Answer:

1.15p + 285 = 5.84

Step-by-step explanation:

This problem has two equations. Total cost and Total pounds. The cost and the pounds

p = apple pounds

b = banana pounds

<u>Cost</u>

1.90p + .75b =  5.84

<u>Pounds</u>

p + b = 3.8

<u>Now we use the substitute method for system of equations to solve</u>

p + b = 3.8

b = -p + 3.8

<u>Now that we know what b equals, substitute is for b in the cost equation.</u>

1.90p + .75b =  5.84

1.90p + .75(-p+3.8) =  5.84

<u>distribute / multiply  .75 by (-p+3.8)</u>

1.90p +  -.75p + 2.85 =  5.84

<u>Combine the p values</u>

1.15p + 285 = 5.84

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3 years ago
Multiplying length by width by height gives the volume of a ______ prism.
elena-s [515]

Answer:

The answer is Rectangular

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Solve for z N (17+ x ) = 34x - r
BigorU [14]

Answer:

Step-by-step explanation:

N(17+x)=34x−r

17n+xn=34x-r

xn= 34x - r - 17n

xn-34x= -r - 17n

x(n-34)= -r - 17n

x= (-r - 17n)/(n-34)

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3 years ago
Is there anyone from edge that already did "Performance Task: Vacation Adventures"?
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"1 unit" is about 7.5 on the scale and the distance between Chicago and New York is about 10.8 on the scale.

Step-by-step explanation:

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melamori03 [73]

Answer:

1 gallon

Step-by-step explanation:

milk she got from both cows

= 5/6+2/3

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milk left after some spilled

= 1 1/2- 1/2

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3 years ago
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