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

3x-y=7 y=3x-2 answer correctly please
All rectangles are rhombuses. True/False
Sleep apnea refers to a hereditary condition that results from falling asleep without warning. True or False?
john and emily meet at a circle park. emily runs around the entire park. john runs from one edge to the other, straight through the middle. compare the distance
Bert already has $50 but needs a total of at least $250 for his holiday. He gets paid $20 per day for delivering papers. What is the least number of days he mus
Find the area of a circle with a radius of 7 feet
Zach's sporting goods is providing a $5 discount on a bicycle that costs $80. What is the percentage of the discount? Show your work.
Question 1 Someone with an O blood type is suspected to be the father of a child with B blood. Is this possible? Answer using correct terminology in 1-2 sentenc
3. Why do we need to conduct Seed analysis Test?​
If x=2 and y=5, evaluate the following expression: 20−(3y−4x)