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iogann1982 [59]
2 years ago
13

If you multiply a number by 3 and then subtract 5, you will get 40. What is the number?

Mathematics
1 answer:
evablogger [386]2 years ago
3 0

Answer:

15

Step-by-step explanation:

Solve the problem backwards and it gives you the answer. Hope this helps

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What is a number less than 130 that rounds to 130 when rounding to the nearest ten
lilavasa [31]

Answer:

129.99

Step-by-step explanation:

129.99 rounds to 130 because the 9 in the hundredths place causes the 9 in the tenths place to round up, making the number 130.0.

7 0
2 years ago
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What is the value of x? Test is timed please help.
Darina [25.2K]

Answer:

x = 19

Step-by-step explanation:

A circle has a total of 360 degrees. Because central angles are congruent to the degree measures of their arcs, and because of vertical angles we can construct the equation :

5x+37+5x+37+3x-9-9=360

We can simplify this to :

8x+28=360

Subtract 28, divide 8, and x is 19

8 0
2 years ago
the spoke of a wheel reaches from the center of the wheel to its rim if the circumstance of the rim of the wheel is 27 inches ho
aleksley [76]
Circumference = 2*pi*r = 27"
Solve for r
r=27"/(2*pi)
=27"/(2*3.14159265)
=4.297..."
=4.30" (to the nearest hundredth of an inch)

7 0
3 years ago
-5x-(8-x)=12 how do I solve this problem.<br> show a step by step please in a balance problem
Alex

Answer:

x = -5

Step-by-step explanation:

to evaluate for x in this this question -5x-(8-x)=12

the firsst step, you would open the bracket with - then evaluate for the value of x

solution

-5x-(8-x)=12

-5x -8 + x = 12

combine the like terms

-5x + x = 12 + 8

-4x = 20

divide both sides by the coefficient of x

-4x/-4 = 20/-4

x = -5

5 0
3 years ago
If y=3 when x=4,find y when x=6
borishaifa [10]

Answer:

2

Step-by-step explanation:

(x)(y) = k    Inverse relationship

(4)(3) = k

12 = k

(6)(y) = 12

y = 2

6 0
3 years ago
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