Answer:
13
Step-by-step explanation:
Answer:
-1
Step-by-step explanation:
If i = √-1, then i^2 = -1.
Answer:
The first step is to replace the y in y-x=15 with 7x (we can do this because the first equation tells us that they're equal)
solve and get
(2.5,17.5)
or x= 2.5 y=17.5
Step-by-step explanation:
The first step is to recognize that y=7x which means that we can just replace the y in the second equation with 7x
7x-x=15
6x=15
x=2.5
Then we can solve for y
y=7(2.5)
y=17.5
Answer:
Step-by-step explanation:
Maria had a test with 20 questions
if 17 are correct,
20 questions................................100%
17 questions................................?%
she was 85% right
A x b = 24
Possible values of a and b are:
1 x 24 = 24
2 x 12 = 24
3 x 8 =24
4 x 6 = 24
The possible sums of a and b are:
1 + 24 = 25
2 + 12 = 14
3 + 8 = 11
4 + 6 = 10
Therefore, the least possible sum of a and b is 10.
