Answer:
440
Step-by-step explanation:
You can write the problem statement in math terms as ...
88 = 0.20 × (what number)
To solve this, divide by the coefficient of the variable, 0.20.
88/0.20 = (what number)
440 = (what number)
The number you're looking for is 440.
_____
Of course you know that 20% = 20/100 = 0.20.
(% is a shorthand way to write /100.)
A) 22.5 cm, 30 cm, and 37.5 cm
Divide 90 by 12 and multiply by three to check if any triplet has the answer in it. In this case only A
Answer:
The slope of the line is 
.
Step-by-step explanation:
We are given two coordinate points:
We are asked to find the slope of the line.
We can use the rise-over-run formula to solve for the slope of the line.
However, we firstly need to name our coordinate points.
In math, we can label our coordinates using the following label system:
Therefore, we can also label our coordinates as such:
Now, we can supply these values into the formula and solve for our slope, or a better known variable, <em>m</em>.
Therefore, our slope is .
Answer:
number: 2
Step-by-step explanation:
Since:
ax(2x + y - 5) = 6x^2 +3xy - 15x,
we should factor X out of the second equation to find out the value of a:
6x^2 + 3xy - 15x =
x(6x + 3y - 15),
Now that we factored X out, to find a, we need to find the other common factor:
(6x + 3y - 15) / (2x + y - 5),
which is 3.
Hence the value of a is 3
