Use the substitution method to solve the system of equations. Choose the correct pair.

x+y=12

-x=-y-10

A 8,4

B 9,3

C 11,1

D 10,2

A number, y, is 2 less than a half of a number x.

Which of the following sets of numbers could be the lengths of the sides of a triangle? a. 3.5 cm, 7 cm, 10.5 cm b. 3.5 cm, 7 cm, 14 cm c. 3.5 cm, 3.5 cm, 3.5 cm d. 3.5 cm, 5 cm, 10 cm

Ethan jogged 1 1/3 miles. Chloe jogged 1 1/4 times as far as Ethan. How many miles did Chloe jog?

2 1/3 divided by 3 1/9

Which of the following inequalities would have a dotted boundary line? Select one: a. y ≥ 12x - 14 b. 12 ≥ 14x + y c. 12y ≤ 14x + 7 d. y > 12x - 14

Battery was charged. when the charging began it was 23% full after 30 minutes of charging the battery was 89% full. how fast was the battery charged? How long did it take the battery to be funny charged?

93*10 of 6th power whole number

1) What is 61% of 7.2?

Equation for 52 is what percent of 260

How much helium to lift 1pound