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Anna11 [10]
3 years ago
8

The janitor at a school discovered a leak in a pipe. The janitor found that it was leaking at a rate of 3 fl oz per minute. How

fast was the pipe leaking in gallons per hour​?
Mathematics
1 answer:
Furkat [3]3 years ago
4 0
1.40625 gallons per hour
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A new car is purchased for 22200 dollars. The value of the car depreciates at 14.75% per year. To the nearest year, how long wil
Ludmilka [50]

Answer:

7 years total

Step-by-step explanation:

22200*.1475=3274.5

keep subtracting 3274.5 until you reach 2200$ or less, which is 7 years

3 1
3 years ago
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A rectangle has the
SVEN [57.7K]

Answer:

15.5 inches

Step-by-step explanation:

  • Length of rectangle = 22 inches
  • Perimeter = 75 inches

To calculate : Width of the rectangle.

★ Perimeter of rectangle = 2( l + w )

→ 75 = 2(22 + w)

→ 75 = 44 + 2w

→ 75 – 44 = 2w

→ 31 = 2w

→ 31 ÷ 2 = w

→ <u>1</u><u>5</u><u>.</u><u>5</u><u> </u><u>inches</u><u> </u><u>=</u><u> </u><u>Width</u>

Therefore, width of the rectangle is 15.5 inches.

6 0
3 years ago
A statistical test is conducted to see if there is evidence that the proportion of US citizens who can name the capital city of
Delvig [45]

Answer:

a) Sample A

b) Sample D

Step-by-step explanation:

The sample that will provide the most significance evidence for the claim is the one that has the bigger proportion of US citizens who can name the capital city of Canada.

The sample that has the bigger proportion is Sample A, with p=38/40=0.95.

The samples that have a proportion of 0.75 of less surely will give no evidence for the claim.

The sample D has a proportion of p=27/40=0.675, which is less than 0.75, so it doesn't provide evidence for the claim.

Sample C has a proportion of 0.775. Is very close to 0.75, but its value as evidence depends on the level of significance of the test.

4 0
3 years ago
The sum of three consecutive numbers is 276. What is the smallest of these intengers?
shtirl [24]

Answer:

91

Step-by-step explanation:

Let x be the smallest one:

● x is the first number

● x+1 is the second number

● x+2 is the third number

The sum of these numbers is 276

● x+(x+1)+(x+2) =276

● x+x+1+x+2 = 276

● 3x + 3 = 276

Substract 3 from both sides:

● 3x+3-3 = 276-3

● 3x = 273

Divide both sides by 3

● (3x)/3 = 273/3

● x = 91

So the smallest one is 91

5 0
3 years ago
Luigi is an urban planner. As an independent contractor, he charges a $140 fee plus $25 per hour for each contract with the city
IrinaK [193]
25x+140=y. 25(10)+140=390.
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3 years ago
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