Answer:
nickels = 12
quarters = 9
Step-by-step explanation:
Let number of quarters be "q", and
number of nickels be "n"
Nickels are worth $0.05 and Quarters are worth $0.25
Since all of them are worth 2.85, we can write:
0.25q + 0.05n = 2.85
Also, we know, there are 3 more nickels than quarters, so we can write:
n = 3 + q
Now, we can substitute equation 2 into equation 1 to get:

Now, we solve for q:

There are 9 quarters.
We know n = 3 + q
So,
n = 3 + 9
n = 12
There are 12 nickels
Yes those are right. all the steps and answers are correct.
Answer:
b = 3
Step-by-step explanation:
the 2 indicated angles form a right angle and sum to 90° , that is
8b + 7 + 59 = 90
8b + 66 = 90 ( subtract 66 from both sides )
8b = 24 ( divide both sides by 8 )
b = 3
Answer:
i think its A
Step-by-step explanation:
(^///^)(^///^)(^///^)
Power rule
y^3(2)
y^6y^7
product rule, add them
y^13