Call the number of hours babysitting
and the number of hours walking dogs
.
We know that she earns $6/hr for babysitting or
, and $5/hr walking dogs or
. We also know the total money is $43 and the total time is 8hours. Therefore:
To solve: First rearrange equation 1 to solve for either
or
(doesn't matter which, I'll use
):
Now substitute into equation 2:
and solve for
Now backsubstitute to solve for
:
She babysat for 3 hours and walked dogs for 5.
To check our work:
CHECKS
Answer:
the unit rate for the $100 option is 12.50
Step-by-step explanation:
100÷8=12.5 which is 12.50
To answer the question above, substitute the values of the variables x, y and z given to the equation.
2x² - 2(z^4)y² - x²(z^4)
2(-4)² -2(2^2)(3²) - (-4)²(2^4) = -296
Thus, the numerical answer to the question above is -296.
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♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
Thus the correct answer is (( A )) .
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