Answer:
78.625
Step-by-step explanation:
88/100 can be simplified. Divide both sides by 4 which turns it into 22/25.
Grace got 22/25 questions correct.
B > - 1.25 is the answer.
John is 78 1/2 years old and his sister is 73 1/2 years old
Simplifying
-2x + -4y = 9
Solving
-2x + -4y = 9
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '4y' to each side of the equation.
-2x + -4y + 4y = 9 + 4y
Combine like terms: -4y + 4y = 0
-2x + 0 = 9 + 4y
-2x = 9 + 4y
Divide each side by '-2'.
x = -4.5 + -2y
Simplifying x = -4.5 + -2y<span>13/18
169
-11
</span><span>5x - 5y = 7</span><span>
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