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telo118 [61]
3 years ago
7

A contractor needs to buy nails to build a house. The nails come in small boxes and large boxes. Each small box has 50 nails and

each large box has 400 nails. The contractor bought 3 times as many large boxes as small boxes, which altogether had 2500 nails. Determine the number of small boxes purchased and the number of large boxes purchased.
Mathematics
2 answers:
Rainbow [258]3 years ago
6 0

Answer:

Step-by-step explanation:

2500/2=1250

1250/400=3.125

1250/50=25

SVETLANKA909090 [29]3 years ago
4 0

Answer:

There were 2 small boxes purchased and 6 large boxes purchased.

Step-by-step explanation:

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There are 25 $10 bills and 11 $20 bills.

Step-by-step explanation:

Given,

Worth of proceeds from garage = $470

Let,

x be the number of $10 bills

y be the number of $20 bills.

According to given situation;

10x+20y=470       Eqn 1

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Putting value of x from Eqn 2 in Eqn 1

10(y+14)+20y=470\\10y+140+20y=470\\30y=470-140\\30y=330

Dividing both sides by 30

\frac{30y}{30}=\frac{330}{30}\\y=11

Putting y=11 in Eqn 2

x=11+14\\x=25

There are 25 $10 bills and 11 $20 bills.

Keywords: linear equation, substitution method

Learn more about linear equations at:

  • brainly.com/question/1279756
  • brainly.com/question/1284310

#LearnwithBrainly

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