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3 years ago

The price of a suit decreased from 280 to 182 during a clearance sale. What is the percent of decrease in the price?

Mathematics

1 answer:

Bogdan [553]3 years ago

3 0

Answer:

35%

Step-by-step explanation:

the percent decrease is calculated using

percent decrease = $\frac{decrease}{originalprice}$ × 100%

decrease = 280 - 182 = 98

percent decrease = $\frac{98}{280}$ × 100% = 35%

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The two smaller sides are 15 and the larger one is 18

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Kate and Melisa both went to the same store to buy eggs and bread for their families. Kate bought 3 cartons of eggs and 5 loaves

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Write an equation system based on the problem
For an instance, e stands for the price of a carton of eggs, and b stands for the price of a loaf of bread

"Kate bought 3 cartons of eggs and 5 loaves of bread for $30.07" could be written as 3e + 5b = 30.07 (first equation)
"Melissa bought 2 cartons of eggs and 2 loaves of bread for $14.74" could be written as 2e + 2b = 14.74 (second equation)

Solve the equation system using elimination method
Eliminate b to find e. To eliminate b, we should equalize the coefficient of b.
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The price for a carton of eggs is $3.39

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3 years ago

I don’t get it.. can anyone help?

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Answer:

1. g x 5 = b

2. f x 12 = in

3. luis' miles x 12 = fabian's miles

4. input x 1.5 = output

5. monica's weight - 5.6 lbs. = Lisa's weight

6. width x 2.5 = length

Step-by-step explanation:

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15. Before oil is added to a certain road surface material, the other ingredients are mixed. The mixture contains

mojhsa [17]

Answer:

sand = 3450 pounds

3/4 inch stones =6750 pounds

1 inch stones =4800 pounds.

Step-by-step explanation:

The mixture composition is :

45% three-quarter inch stones

32% inch stones and

sand for balance

The percent here is by mass of material used.

Weight of mixture is 15,000 pounds before oil addition.

Use the percent by weight for the two types of stones and calculate real values in pounds

Formula to apply is:

Mass percent = (mass of a material/ total mass of mixture) * 100

For 3/4 inch stones it will be:

$0.45= \frac{x}{15000} *100\\\\0.45=\frac{x}{150} \\0.45*150=x\\x=6750$

The 3/4 inch stones weigh 6750 pounds

The 1 inch stones will be

$32/100 * 15000 =4800$

The 1 inch stones weigh = 4800 pounds

Total for the two items : 4800+6750 =11550 pounds

The sand used weighs : 15000 - 11550 = 3450 pounds

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3 years ago