We can check by subbing in the values.
7x + 2y = -7
(7,9).....x = 7 and y = 9
now we sub
7(7) + 2(9) = -7
49 + 18 = -7
67 = -7 (incorrect)....therefore, (7,9) is NOT a solution for this equation
Answer:
No it does not
Step-by-step explanation:
Im pretty sure she has 6 quarters and 12 nickels since it it twice as much.
$0.25 x 6 =150
$0.5 x 12 =60
total = 210
Answer: 17 people
Step-by-step explanation:
You divide 8 3/4 and 1/2 and you get 17 1/2
And since the question asks how many people can he serve you use the whole number because its not fair if you give a full serving to a person and half a serving to another.
Answer:
12 unit cubes
Step-by-step explanation:
There are 4 unit cubes on each layer, and there are 3 layers as you can see. So 4 × 3 would equal 12.
