N+d=21
5n+10d=170
so
multiply first equation by -5 and add to other one
-5n-5d=-105
<u>5n+10d=170 +</u>
0n+5d=65
5d=65
divide both sides by 5
d=13
sub back
n+d=21
n+13=21
minus 13 both sides
n=8
8nickles
13 dimes
Answer:
I would need to know the length of a pair of corresponding sides, so I could set up a proportion to solve for the unknown length. I would set the ratio of the known corresponding sides equal to the unknown measure, making sure I put corresponding measures from the triangles in the same positions in the ratios.
Step-by-step explanation:
Answer:
1.8333
Step-by-step explanation:
Answer:
No. This isn’t a function.
Step-by-step explanation:
Ok, functions have x values that only have 1 y value. It doesn’t matter if the y values have multiple x values.
So, first look at the x values, all of them have 1 y value but the number 6. Therefore, this does not represent a function.
The answer is the 2nd one.
11x11=121
$140-121=19
19/7=
It would take approximately 2hours and 71 minutes to meet her requirements.
