My work and the answer is shown up in the picture.
I used the substitution method to check my answers by using x and y into the two equations.
Question number 7 I need help in because it says what is the tax rate?
1 answer:
You might be interested in
we know that
Erika earns per hour
so
By proportion
Find how much she earn during the total hours of two weeks
The total hours of two weeks is equal to
therefore
<u>the answer is</u>
Answer:
48
Step-by-step explanation:
Ratio: Blue:yellow=4:3
4x12=48
So basically, You make a "equation".
You add 4 and 3 which is 7.
So since you know there is 84 total cards. That will equal the "?". So you divide the 84 and 7 since that will show what you will multiply with 4 and 3 to keep the blue and cards equally balanced. So you multiply the 12 and 4. Which is 48.
So there are 48 blue cards. Hope this helped you C: