babyblood2s babyblood2s
  • 11-01-2022
  • Mathematics
contestada

3. Twice the sum of 10 and a number is 28. Find the number.

Respuesta :

kat91110
kat91110 kat91110
  • 11-01-2022

Answer:

4

Step-by-step explanation:

The equation is 2(10+x)=28 where x is the unknown number we are trying to find. Use distrubutive property to combine like terms. 2 times 10 is 20 and 2 times x is 2x. Now we have 20+2x = 28. What you do to one side you must do to the other. 20 minus 20 is 0. 28 minus 20 is 8. Now our equation is 2x is 8. To find 1 x we divided in half. 8/2 is 4 therefore the missing variable is 4.

Answer Link

Otras preguntas

A dilation is a transformation whose preimage and image are _____
What are the energy (kcal and protein requirements for an infant from age 0-6 months and 6 months to 1 year?
What is the percentage of 0.8
Which city received a massive airlift following a blockade issued by Communist leaders?
Which president issued an executive order that prevented racial discrimination in hiring?
Write an equation to find the total cost for t for a number of pizzas
Shakespeare most often used sonnets to express which emotion between characters?
The ___ causes causes currents to curve to the ____ in the northern hemisphere and to curve to the _____ in the Southern Hemisphere
At midnight, the temperature was 43.7°F. In the morning, the temperature was −3.6°F. Which statement describes the temperature? At midnight, the temperature wa
Mike has 15.68 pounds of aluminum cans, how many more to make 50 pounds ?