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mezya [45]
3 years ago
12

If 3 is 5% of a number, what is 30% of that number?

Mathematics
1 answer:
Gre4nikov [31]3 years ago
4 0
3=5%
times both sides by 6
18=30%
tada
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Sandy and sally were able to paint a a at house in 5 hours together: it takes sally 9 hours to finish this job alone. Without he
OLEGan [10]

Answer:

9/44 of an hour, or just over 12 minutes

Step-by-step explanation:

Person 1 + Person 2 divided by Person 1 x Person 2 = Both together

9 + x / 9*x = 5

9+x/9x = 5

Multiply both sides by 9x

9 + x = 45x

Subtract x from both sides

9 = 44x

Divide by 44 to get x.

9/44 of an hour

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Lisa purchased a concert ticket on a web site. The original price of the ticket was $75. She used a coupon code to received a 20
Lelu [443]
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Manny buys a new grill that costs $375. The grill is discounted 22% and sales tax is 6.5%. How much does Manny pay for the grill
Svetllana [295]

Answer:

$310.05

Step-by-step explanation:

Method 1: Find the amount of 22% discount and subtract from original price, and find the amount of 6% tax and add to discounted price.

Original price: $375

Discount of 22%

22% of $375 = 0.22 × $375 = $82.50

Price after discount (but before tax): $375 - $82.50 = $292.50

Sales tax of 6%

6% of $292.50 = 0.06 × $292.50 = $17.55

Price after discount and tax: $292.50 + $17.55 = $310.05

Method 2: Add and subtract the discount percent and the tax percent first, then multiply.

Original price: $375

The discount is 22%.

The original price is 100%.

Subtract 22% from 100%: 100% - 22% = 78%

The discounted price is 78% of the original price.

Once you have the discounted price, tax is 6%.

The new discounted price is 100%. Add 6% to get 106%.

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2 years ago
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