Answer:
The value of x is 200 in the equation 1/5x - 2/3y = 30, when y = 15
Step-by-step explanation:
<u>Given</u>
equation: x - 2/3y = 30
when y = 15
<em>Plug in y:</em>
1/5x - 2/3(15) = 30
1/5x - 10 = 30
<em>add</em> 10 to both sides,
1/5x - 10 + 10 = 30 + 10
1/5x = 40
<em>multiply</em> both sides by 5
1/5x * 5= 40 * 5
x = 200
Answer: Yes
Explanation:
120 % = 1.2
If Maxine is correct, then she spent 1.2
times the hours she did homework than last week.
15 ⋅ 1.2 = 18.0 = 18
15 hours ⋅ 1.2 = 18.0 hours = 18 hours
Maxine is correct
Ratio of men : women = 3 : 5
-
<u>Find total parts:</u>
3 + 5 = 8
-
<u>Find 1 part:</u>
5 parts = 140
1 part = 140 ÷ 5 = 28
-
<u>Find 8 parts (total):</u>
8 parts = 28 x 8 = 224
-
Answer: There are 224 employees
5/6 of a yard divided by 5 is 1/6 of a yard.
Each piece is 1/6 yards long.
<span>8.42 x 10^3
</span>Use PEMDAS (Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction)
Solve exponent first
<span>8.42 x 10^3
</span>8.42 x 1000
Solve the rest
8.42 x 1000
8420
8420 is between
D.) 8400 and 8500
