4 years ago

13 times an unknown number added to 72 equals -23 times the unknown number.what is the solution to the sentence ?

Mathematics

2 answers:

Alika [10]4 years ago

6 0

Let the unknown number be x
13x+72= -23x
13x+23x= -72
36x= -72
x= -2

wel4 years ago

4 0

The correct answer is -88

You might be interested in

the sum of three numbers is 131. the third number is 4 times the first. the second number is 5 more than the first. what are the

Sphinxa [80]

Step-by-step explanation:

let the numbers are:

a, b, and c

the equation would be:

a+b+c = 131

c = 4a

b = a+5

a + a+5 +4a = 131

6a +5 = 131

6a = 131-5

6a = 126

a= 126/6

a = 21

b = a+5 = 21+5

b = 26

c = 4a = 4(21)

c = 84

4 0

3 years ago

I need some help on my exit ticket lol

Nina [5.8K]

Answer:

The area of a circle can be found using the formula $A=\pi r^2$

Step-by-step explanation:

8 0

3 years ago

Can somebody explain how to do this question

evablogger [386]

Answer:

The answer is D

Step-by-step explanation:

Remember:

Contrapositive means that if you reverse the hypothesis and the conclusion the statement will mean the same thing

7 0

3 years ago

What interger is equivalent

alexandr1967 [171]

9.5 is your answer if you can do that because 3/2 is 1.5

6 0

3 years ago

A triangle has three different integer side lengths and a perimeter of 20 units. What is the max length of any one side?

Troyanec [42]

X + x+1 + x + 2 = 20
3x + 3 = 20
3x = 17 but can't start with x = 6 because 6+7+8 > 20,
so have start with 5 + 6 + 7 = 18 are the 3 sides.

3 0

3 years ago