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Eva8 [605]
2 years ago
11

At a fabric store, fabrics are sold by the yard. A dressmaker spent $36.35 on 4.25 yards of

Mathematics
1 answer:
ArbitrLikvidat [17]2 years ago
8 0

Answer:

Silk = x = 1.5 yards

Cotton = y = 2.75 yards

Step-by-step explanation:

x + y = 4.25

16.90x + 4y = 36.35

1. The solution to the equation represent number of yards of silk and number of yards of cotton bought.

2.

x + y = 4.25 (1)

16.90x + 4y = 36.35 (2)

Multiply (1) by 4

4x + 4y = 17 (3)

16.90x + 4y = 36.35 (2)

Subtract (3) from (2)

16.90x - 4x = 36.35 - 17

12.90x = 19.35

Divide both sides by 12.90

x = 19.35 / 12.90

= 1.5

x = 1.5 yards

Substitute x = 1.5 yards into (1)

x + y = 4.25

1.5 + y = 4.25

y = 4.25 - 1.5

= 2.75

y = 2.75 yards

Silk = x = 1.5 yards

Cotton = y = 2.75 yards

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Whatever% of anything is just (whatever/100) * anything.

so 56% of 75 mates like it, how much is 56% of 75?  well is just (56/100) * 75, namely 42.

and 80% of 60 relatives like it as well, how much is 80% of 60?  well, is just (80/100) * 60, namely 48.

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2 years ago
What is the equation of the graph below?
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Answer:

A. y = sine (x + 90 degrees)

Step-by-step explanation:

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Answer:

Each point (or pair) in a proportional relationship must share the same ratio.

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Write a two step equation involving division and addition that has a solution of x = 25
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Start with the solution
x=-25
use the reverse of what they asked
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we use multiplication and subtract

ok
x=-25
we can use subtraction and multiplication in any order
minus 10 from both sides
x-10=-35
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If you are one of the first 100 people to join a new health club, you are charged a joining fee of $49. Otherwise, you are charg
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Answer:

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