Answer:b=4
Step-by-step explanation:
Of means multiply, so we are going to multiply.
First, make 5% a decimal:5%=
=0.05
Now, we multiply 0.05 by 78:
×
=
Your answer is C. 3.9
Answer:
6A, D
Step-by-step explanation:
So, you have A = b*h. The general formula for the area of a triangle. Then, we double the base and triple the height. We then get the expression (2b)*(3h).
Since it is multiplication, we can multiply 2 and 3 to get 6 and get 6*b*h.
Though, we know b*h is just A so we get 6A.
Answer:
4:5
Step-by-step explanation:
Since there are nine marbles in the bag, and 4 are red and 5 are blue, then you know that the ratio to red and blue is 4:5
Answer: C) 297 in2
Step-by-step explanation:
Hi, to answer this question we have to apply the next formula:
Surface area of a square pyramid (S) = 2 (length of the base) slant + length of the base ^2
S = 2bs + b^2
Replacing with the values given:
S = 2 (9) 12 + 9^2
S = 216 +81 = 297 square inches
Feel free to ask for more if needed or if you did not understand something.