All categories

3 years ago

6) The sum of three consecutive numbers is 120. What is the smallest of the three numbers ?

Mathematics

1 answer:

bekas [8.4K]3 years ago

8 0

Answer:

Step-by-step explanation:

Let the smallest number be n,

then the three numbers are n, n+1 and n+2

Therefore, n+(n+1)+(n+2)=120

Collecting like terms,

n+n+n=120-1-2

3n=117

n=117/3

n=39

Therefore the numbers are 39,40 and 41.

And the smallest number is 39.

You might be interested in

the sum of three numbers is 207. the second number is 8 times the first, while the third is 3 less than the first, find the numb

pentagon [3]

First number = X
Second number = 8X
Third number = X - 3

The equation would be
X + (8X) + (X - 3) = 207

X + (8X) + (X - 3) = 207

X + 8X + X - 3 = 207

10X - 3 = 207

10X = 207 + 3

10X = 210

X = 21

First number = 21
Second number = 8 * 21 = 168
Third number = 21 - 3 = 18

3 0

4 years ago

Seven more than the product of a number and 2 is equal to 9

Lina20 [59]

Answer:2x+7=9

Step-by-step explanation:

When it says seven more you add that to the end of the equation and set it equal to 9 then product of a number (x) and 2 so it would be 2x. Hope this helps!

4 0

3 years ago

Help please <br>what is 3/4×5/7 =

vesna_86 [32]

Answer:

15/28 simplified to 5/8 (credit to other answer.)

Step-by-step explanation:

Multiply the top numbers 3*5 which equals 15 and then multiply the bottom numbers 4 and 7 for 28. Put 15 over 28.

5 0

3 years ago

What are two whole numbers between the square root of 8

adelina 88 [10]

Answer:

8.5 The student, given a whole number from 0 to 100, will identify it as a perfect square or find the two consecutive whole numbers between which the square root lies.

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

What times what equals 68 ?

Anna71 [15]

34 x 2 = 68
17 x 4 = 68

3 0

4 years ago