Answer:
40
Step-by-step explanation:
Suppose the unknown value is x.
20% "of" x "is" 8
"of" usually means multiply and "is" usually means equals, so:
20% * x = 8
20% = 20/100 = 0.2
0.2x = 8
x = 40
Thus, the answer is 40.
Hope this helps!
Answer:
Bx3=27 there are 9 blue marbles
Step-by-step explanation:
The simpliest form is 71/10, the fraction
Step-by-step explanation:
Since this isn't a really small (1/1000000000) or really big (like the radius of the earth) number you don't need the standard notation, so the fraction 71/10 is the simpliest because there is only a decimal, so it can be a fraction of ten.
Answer:
x = 1, y = 3
Step-by-step explanation:
y = -2x + 6 --- Equation 1
y = 4x - 1 --- Equation 2
Since both (-2x + 6) and (4x - 1) have the same total, y, they are equal.
-2x + 6 = 4x - 1
Isolate the like terms.
6 + 1 = 4x + 2x
Evaluate like terms.
6x = 7
Find x.
x =
x = 1
Substitute x = into Equation 2:
y = 4x - 1
y = 4() - 1
= 4 - 1
y = 3
Answer:
Step-by-step explanation: