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3 years ago

1. Five more than three times a number is sixty- five.

Mathematics

2 answers:

EleoNora [17]3 years ago

6 0

1)
a. 5+3x= 65
b. 5+3x=65
3x=65-5
3x=60
x=20

2)
a. v= 28 -32t
b. (v=0)
0= 28 -32t
32t=28
t=28/32
t= 7/8

allsm [11]3 years ago

4 0

1)
Let unknown number be x
3x + 5 = 65
3x = 60
x = 20

Therefore, unknown number is 20.

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5. alternate interior angles are equal to each other so set up the x expressions equal to each other. 5x-7=3x+17. Solve for x

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