Step-by-step explanation:
18x+21y
-
22x-3y
__________
= - 4x+24y
18x-(22x)=-4x
21y-(-3y)=24y // - * - = +
Let the number be x.
x/3 + 12 = 46
Subtract 12 from both sides and you will get:
x/3 = 34
Multiply both sides by 3:
x = 102
Answer:
Step-by-step explanation:
<u>Solving exponents</u>
- a. 5^-2 = 1/5^2 = 1/25
- b. (3^2)^3/3^8 = 3^6/3^8 = 1/3^2 = 1/9
Answer:
The sum of half of a number and three-fourths is at least five and one quarter
Step-by-step explanation:
It's all about making sense of an English sentence.
"half the sum ..." is different from "the sum of half ..."
And ...
"at least" and "not less than" mean the same (≥)
"not more than" and "at most" mean the same (≤)
_____
Since all of the expressions are written out in words, it is a matter of matching the ideas expressed. That's a problem in reading comprehension, not math.
__
"One-half x + three-fourths [is] greater-than-or-equal-to 5 and one-fourth"
means the same as ...
"The sum of half of a number and three-fourths is at least five and one quarter"
Answer:
2/7
Step-by-step explanation:
16yr:28yr simplified is:
2:7
then as a fraction it's 2/7
Hope it helps:)
