Answer:
He'll have $42.
Step-by-step explanation:
5% annually means that he'll have 5% more in his account after one year. That's exactly what the question asks.
So it's just a matter of adding 5% to $40.
$40 + ($40 * 0.05) = $40 + $2 = $42
Answer:
7.7 %
Step-by-step explanation:
352-325
=27
27/352 x 100/1
7.670
=7.7%
29.) This is simply interpreting the linear function.
The function:
96+2.1x
a.) The 96 is what you start with from the beginning. So, we know Rachel weighed 96 ounces when she was born.
b.) Again, interpretation. The 2.1 is the slope, or the change in the line. So we know that Rachel gains 2.1 ounces each day.
30.) For this one, you just have to plug 9 into the equation for x.
20 divided by 30 times 24 is how you find the answer. The answer is x = 16.
Answer:
2x-1=31
5(21-1) + y = 32
She notices that each equation contains the expression 2.x-1. Can she
substitute 3y for 2x-1? Why or why not?
b
Substitute 3y for 2x-1 in the second equation to create one equation with
one variable. Then solve for x and y
Step-by-step explanation:
2x-1=31
5(21-1) + y = 32
She notices that each equation contains the expression 2.x-1. Can she
substitute 3y for 2x-1? Why or why not?
b
Substitute 3y for 2x-1 in the second equation to create one equation with
one variable. Then solve for x and y
