Step 1. Multiply first equation with -3 and the second one with 2. You'll get:
Step 2. Add both equations together. You'll get:
, which gives x = -2
Step 3. Replace x = -2 in the first equation and calculate y.
The solution is: x=-2, y=5
31.5 miles
If she runs 2.25 miles/day and she runs 14 days, you multiply 14*2.25
Answer:
Step-by-step explanation:
60
%
discount given in total, so only
40
%
is paid.
Explanation:
So here we need to make a two-step changing factor.
This means that we first take
0.5
(something decreasing by
50
%
) times
0.8
(something decreased by
20
%
) which is
0.4
(something decreased by
60
%
When the adding is inside the parentheses it is a horizontal shift to the left.
This affects the x - axis.
So, we take our x coordinate, 4, and subtract 3.
4 - 3 = 1
So, the new point is:
( 1, -8)
Answer:
x = 59
Step-by-step explanation:
![\sqrt[3]{2x+7}](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B2x%2B7%7D)
= 5 ( raise both sides to the power of 3 )
( )³ = 5³
2x + 7 = 125 ( subtract 7 from both sides )
2x = 118 ( divide both sides by 2 )
x = 59
