ALL yourr doing is just adding 8 and 36
y= 4\frac{1}{2} or y= 4.5
The answer is X = 11 - 3. This is because to calculate the original value of how many books Isabella had, you have to take away the amount purchased from the overall total amount. Therefore, the equation is x = 11-3
Answer:
11
Step-by-step explanation:
198 ÷ 18 = 11
x = 11
......
20 degrees. i have a protractor, and its really helpful! you should use one.
This is a ratio problem; the ratio of the length to width is constant (and therefore equal):
4 /6 = 15 / x
Now, with a ratio, we may do any allowable algebra operation: cross-multiply, invert both sides, multiply or divide both sides by the same amount, etc.
Let's cross-multiply:
4x = (15)(6)
x = 90/4
x = 22.5 in.
