2 years ago

Question 3 of 10

Mathematics

1 answer:

nlexa [21]2 years ago

5 0

Step-by-step explanation:

$therefore \: x = 1$

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Solve 5x + 7 > 17<br><br> mathematics

Ulleksa [173]

X<2: 5x+7>17 you subtract seven from both sides to give you 5x>10 when you divide by 5 the sign flips to give you x<2.

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3 years ago

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Jenny bought scrapbooking supplies for $156.50. She paid $10.17 in sales tax. What was the sales tax rate on the supplies? If ne

Lapatulllka [165]

Answer:

6.5%

Step-by-step explanation:

sales price x sales tax rate = sales tax

156.50 x sales tax rate = 10.17

sales tax rate = 10.17/156.50

sales tax rate = .065 or 6.5%

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3 years ago

Please help it is due in 20 minutes and i still have like 5 questions!!!

OverLord2011 [107]

Answer:

$42.50

Step-by-step explanation:

multiply 50 by 0.15 and get 7.50 subtract from 50

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4 years ago

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Diane received a $80 dollar gift card for a coffee store. She used it in buying some coffee that cost $8.14 per pound. After buy

irina1246 [14]

5 pounds
Because you have to subtract $80 from $39.30 and when you do that you get $40.70. Then you divide that by the $8.14 per pound and that gives you your answer.

I hope I helped
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3 years ago

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It takes 60 minutes to make 2000 copies on an old copy machine. The newer copier works with the old copier to create 2000 sheets

Cerrena [4.2K]

The new copier can create 2000 copies in 20 minutes.

Step-by-step explanation:

Given,

It takes 60 minutes to make 2000 copies by old printer and 15 minutes to made x number of copies, therefore, using proportion

$60:2000::15:x$

Product of mean = Product of extreme

$2000*15=60*x\\30000=60x\\60x=30000$

Dividing both sides by 60

$\frac{60x}{60}=\frac{30000}{60}\\x=500$

As the new copier is working with old copier, therefore,

Copies made by new printer = 2000 - 500 = 1500

New copier can make 1500 copies in 15 minutes and 2000 copies in x minutes, using proportion

$1500:15::2000:x\\1500*x=15*2000\\1500x=30000$

Dividing both sides by 1500;

$\frac{1500x}{1500}=\frac{30000}{1500}\\x=20$

The new copier can create 2000 copies in 20 minutes.

Keywords: ratio, proportion

Learn more about proportions at:

#LearnwithBrainly

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4 years ago