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Triss [41]
3 years ago
12

CAN SOMEONE PLEASE HELP ME ill give brainliest if correct

Mathematics
1 answer:
Iteru [2.4K]3 years ago
5 0

Answer:

280

Step-by-step explanation:

360-80

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The speed limit on a highway is 55 mph. A speed sensor showed that a car went 900 ft in 8 s. Is the car traveling over the speed
Reika [66]

Answer:

900 feet / 5,280 = 0.1704545... miles

8 seconds / 3,600 = 0.0022222222 hours

0.1704545 miles / 0.0022222222 hours = 76.704525767 miles per hour

The car is well over the speed limit

Step-by-step explanation:

6 0
3 years ago
Elizabeth and her sister earned money shoveling snow over winter break. Altogether, they shoveled for a
Phoenix [80]

Answer:

Elizabeth spent 17.5 hours and her sister spent 12.5 hours.

Step-by-step explanation:

Let x be the number of hours that Elizabeth shoveled and y be the number of hours that her sister shoveled.

Number of hours they shoveled = 30

So, x + y = 30 or

y = 30 - x

Jenna charged $12 per sidewalk.

So, her total earnings = 12x

Her sister charged $11 per sidewalk.

So, her total earnings = 11y.

Their total income = $347.50.

So, 12x + 11y = 347.5

Substitute y = 30 - x,

12x + 11(30 - x) = 347.5

12x + 330 - 11x = 347.5

x + 330 = 347.5

x = 347.5 - 330

x = 17.5 and

y = 30 - x = 30 - 17.5 = 12.5.

Hence, Elizabeth spent 17.5 hours and her sister spent 12.5 hours.

4 0
3 years ago
Thomas bought a desk with a retail sales price of $128 and paid $10.37 for sales tax. What is the sales tax rate where Thomas bo
UNO [17]
10.37/128 = 8.1%. Is the rate of tax
7 0
3 years ago
Annie has bag with tiles numbered 1 through 7 in it . In how many orders can she pull 3 tiles out of the bag ?
DaniilM [7]

Answer:

210 ways

Step-by-step explanation:

7×6×5

= 210

5 0
3 years ago
Read 2 more answers
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I think the answer is A,B, and D.
Where these the answers?
3 0
3 years ago
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