4 years ago

If the sum of two numbers is 20 and one of those numbers is three times the other, what is the smaller number?

Mathematics

1 answer:

Mazyrski [523]4 years ago

8 0

X = smaller number
y = bigger number

y = 3x

x+y = 20
x+3x = 20
4x = 20
x = 5

The smaller number is 5.

You might be interested in

Round the number 784,072 to the nearest hundred thousand

Zina [86]

The answer to your problem is 800,000.

7 0

3 years ago

Read 2 more answers

Work out the circumference of this circle take pi (3.142) and give your answer to one decimal place the diameter is 9m

bulgar [2K]

Answer:

28.3

Step-by-step explanation:

9x3.142=28.27800 and if you round that it is 28.3

4 0

3 years ago

Find the perimeter of each figure by writing and solving an ewuation for the varible, x

grandymaker [24]

6(x-1)
4x

X = 6*x-1*6/6x-6=4x
X= -6=4x-6x
X=-6=-2x
Value of x Is 3

8 0

3 years ago

In each diagram, ∆ABC has been transformed to yield ∆A'B'C'. Which transformation could NOT be achieved by rotation alone?

Cloud [144]

Answer:

Graph D

Step-by-step explanation:

4 0

4 years ago

Solve -4(3x-7) =40 for x

PIT_PIT [208]

Answer:

x = -1

Step-by-step explanation:

-4(3x-7) =40

Divide each side by -4

-4(3x-7)/-4 =40/-4

3x-7 = -10

Add 7 to each side

3x-7+7 = -10+7

3x = -3

Divide each side by 3

3x/3 = -3/3

x = -1

4 0

3 years ago