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notsponge [240]
3 years ago
8

Six more than 1/5 a number is 12. What is the number

Mathematics
1 answer:
suter [353]3 years ago
8 0

Answer:

Step-by-step explanation:

let x be the number

6+1/5x=12

1/5x=12-6

1/5x=6

x=5*6

x=30

check: 6+(1/5*30)=6+6=12

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They are related becasue if you find the area of a parallelogram then divide it by two then you have the area of a triangle

Step-by-step explanation:

3 0
4 years ago
A ball is thrown in the air from a ledge. Its height in feet is represented by  f(x) = –16(x^2 – 5x – 6), where x is the number
leonid [27]
I believe your answer is 6 seconds.

Because the height of the ball = -16(x² - 5x - 6), when the height of the ball is 0, which is when it is on the ground, we can set -16(x² - 5x - 6) equal to 0. This also allows us to divide by -16, and then we can solve the equation:

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I hope this helps!
6 0
3 years ago
Mattie Evans drove 180 miles in the same amount of time that it took a turbopropeller plane to travel 630 miles. The speed of th
AysviL [449]

Answer:

the speed of the plane was 210 mph.

Step-by-step explanation:

3 0
3 years ago
Four brothers and their sister have the average age 7. Four brothers have the average age 6. How old is the sister?
AnnyKZ [126]

Answer:

11 years old

Step-by-step explanation:

If four brothers have the average age 6, then the sum of their ages is

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4 0
4 years ago
What is 4/3 ft x 15 inches <br> I need the anwser in inches
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Answer:

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Step-by-step explanation:

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