Answer and Step-by-step explanation:
a - b = 2
=
b = a - 2
a = b + 2
______________
b = b + 2 - 2
b = b
______________
______________
a = a - 2 + 2
a = a
______________
If a equals 0, then the expression is undefined.
If b = 0, then the expression is 0.
There are infinite number of solutions when a is not 0 and the numbers are positive.
<em><u>#teamtrees #PAW (Plant And Water)</u></em>
Hello!You have to multiply 1 1/4 by 30 because each math book is 1 1/4 in. thick, and 30 books is 1 1/4 by 30. First change 30 and 1 1/4 to an improper fraction.
For the answer to the question above asking w<span>hat is the conditional probability that exactly two of the children will be allergic to peanuts, given that at least one of the three children suffers from this allergy?
The answer to the question above is 0.0012. I hope this helps</span>
Answer: gold fish
Step-by-step explanation:
9514 1404 393
Answer:
- 57 = (7/8)x -13
- $80
Step-by-step explanation:
1. I find it convenient to use variable names that remind me what they stand for. Here, we can use "j" to represent Joanne's earnings, and "e" to represent Erin's earnings.
j = 57 . . . . . Joanne earned $57
j = (7/8)e -13 . . . . . Joanne's earnings were $13 less than 7/8 of Erin's
Substituting for j, we get one equation for Erin's earnings
57 = (7/8)e -13
Using 'x' for Erin's earnings, this is ...
57 = (7/8)x -13
__
2. We can solve the equation as follows:
70 = 7/8x . . . . . . add 13
80 = x . . . . . . . . . multiply by 8/7
Erin earned $80 in tips.