Answer: y is 23 and x is 139 so x + y = 162
Step-by-step explanation:
(23-x)+(2x+18)=180
41+x=180
x=180-41
x=139
Answer:
Michelle must get an 80 on her next test to keep her average score.
Step-by-step explanation:
Since Michelle got an average score of 80 on two tests, to determine what score she must get on the third test so that her average score for the three tests is the same as the average score for the first two tests, the following calculation must be performed:
X / 2 = 80
X = 80 x 2
X = 160
X x 3 = 80 x 3
X x 3 = 240
X = 240/3
x = 80
So, Michelle must get an 80 on her next test to keep her average score.
Answer:
A
Step-by-step explanation:
which number has the least value
Answer:
<u>multiply</u> the base and <u>add </u>the exponents
You can get 20 quarters for a five dollar bill. Just divide 5.00 by 0.25 and you get 20. To check, you can multiply 20 by 0.25 and you will get 5.00 or 5.
