Question

(1) 3 times the sum of a number and 5 gives 45
(2) 5 times the sum of a number and 1 gives 50
3) 10 times, two less than a number is 90
4) One third of the sum of a number and 4 is 8

5) Half of, 5 less than a number is 10
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Answer 1

Answer:

27*15

Step-by-step explanation:

multiply using write the product

Answer 2

Answer:

1. The sum: +

Two times a number: 2x

Let x be the unknown number that 2 is being multiplied by

The sum of 2 times a number and 5:

2x+5=45

Perform the opposite operation on the left side of the equation by subtracting 5 on both sides of the equation

2x=40

Isolate x by performing the opposite operation, which is division of 2 , on both sides of the equation

x=20

The unknown number is

20.

2. let X be the no.

according to the que.

5x+1=50

5x=49

X=49/5

X= 9.8.

so the unknown number is 9.8.

3.