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3 years ago

I need the answers for these two questions

Mathematics

1 answer:

Sindrei [870]3 years ago

3 0

Answer:

$29.14

$86.68

Step-by-step explanation:

$30 before tax

Discount: 20%

100% - 20% = 80% = 0.8

0.8 * $30 = $24 after discount

Tax: 6.4%

100% + 6.4% = 106.4% = 1.064

1.604 * $24 = 25.54 after tax and discount

Tip: 15% = 0.15

0.15 * $24 = $3.60

Total = $25.54 + $3.60 = $29.14

$75 before tax

10% discount

100% - 10% = 90%

90% of $75 = 0.9 * $75 = $67.50 after discount

Tax: 7%

100% + 7% = 107% = 1.07

1.07 * $67.5 = $72.23 after discount and tax

Tip: 20% = 0.2

0.2 * $67.50 = $13.50

Total = $72.23 + $13.50 = $85.73

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Max wrote 10 pages of his lab report in 4 hours

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He'd write 20 pages in 8 hours, 17.5 pages in 7 hours, 15 pages in 6 hours,13.5 pages in 5 hours, 7.5 pages in 3 hours, 5 pages in 2 hours, and 3.5 pages in one hour.

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3 years ago

Carly works at a local bakery. She needs 8 cups of flour to make a cake and 4 cups of flour to make 16 cupcakes. It she started

AleksAgata [21]

Answer:

All things said, Carly needs 32 cups for compose her bakery items.

Step-by-step explanation:

First, let' see how much flower in all would need to be used for the following delicacies, knowing she started with 72 cups of flower.

4 x 8 = 32 cups for the cake

4:16 = for only 16 cupcakes, so double it 8:32... 8 cups of flour.

Thus, 8+32= 40 & 72-40= 32

All things said, Carly needs 32 cups for compose her bakery items.

I hope this helped!!

~ Penny

3 0

4 years ago

Read 2 more answers

Algebra help needed asap?!

Arisa [49]

$2^{25}\text{ million people on }2^{17}\text{ square miles}\\\\$

$\text{So on 1 square mile there are : }\dfrac{2^{25}}{2^{17}}=2^{25-17}=2^{12}\text{ milion people}$