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lara [203]
4 years ago
5

Find three consecutive numbers such that the sum of one-fourth the first and one-fifth the second is five less than one-seventh

the third
Mathematics
1 answer:
mafiozo [28]4 years ago
5 0

Answer:

The numbers are -16,-15 and -14

Step-by-step explanation:

Let

x ----> the first number

x+1 ----> the second number

x+2 ---> the third number

we know that

(1/4)x+(1/5)(x+1)=(1/7)(x+2)-5

Multiply by (4*5*7) both sides

35x+28(x+1)=20(x+2)-140*5

35x+28x+28=20x+40-700

43x=-688

x=-16

so

x+1=16+1=-15

x+2=-16+2=-14

The numbers are -16,-15 and -14

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QveST [7]

Answer:

g>-3

Step-by-step explanation:

You divide -5 on both sides to get -3.

4 0
3 years ago
You are shot out of a cannon at the fair. The equation y=-1/5(x+2) (x-28) models your flight path, where y is the height above t
Alenkasestr [34]

Q: You are shot out of a cannon at the fair. The equation y=-1/5 * (x+2) (x-28) models your flight path, where y is the height above the ground and x is the horizontal distance. Which of the following statements in the comments are true?

a) You reach a maximum height of 45 feet,

b) You will land 11.2 feet from the cannon,

c) The barrel of the cannon is about 11 feet above the ground.

d)At a point 13 feet from the cannon, you begin to descend.

A: When y = 0, x = 28

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Hence a is true, b is false, c is false, d is false .

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3 years ago
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lana66690 [7]
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3 years ago
Balancing the equation 121 - X = 49+10+26
Jlenok [28]
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4 years ago
Solve for y, z, x or t: y+ y/a =b, if a≠−1
Vadim26 [7]

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Explanation:

In this case, you need to solve for y in y + y/a = b, if s ≠ - 1.

This is how you do it step-by-step:

<u>1. Multiply all the equation by the common denominator</u>: a

y + y/a = b\\ \\ a(y + y/a = b)\\ \\ a(y + y/a) = ab

<u>2. Simplify</u>:

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3 years ago
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