81.1 because if you round, 81.139 = 81.4 = 81.1
Suppose the total number of problems be x
this will be given by:
(1/5)x+7+(3/5)x+8=x
Putting like terms together we get:
(1/5x+3/5x)+(7+8)=x
4/5x+15=x
4/5x-x=-15
-1/5x=15
thus
x=75 problems
Answer:
No, you can simplify but not solve because there is no equal sign which makes it an expression not an equation.
Answer:
the answer is No for this question
Answer:
The answer is C.
Step-by-step explanation:
Dilation is a way of creating a similar shape. This is either an enlarged or shrunken version of the original triangle. All the lengths have to go under the same scale factor. We have to divide each dimension. Let's do this one at a time. A. 6/3 = 2 12/9= 1.3 continued. A is ruled out. Let's try B. 6/7 = 0.85 12/13=0.92 B is ruled out. C. 6/8 = .75 12/16= 0.75 looking good so far 15/20=0.75. Here we find our answer.
