Answer:
0.5x−7.8
Step-by-step explanation:
Let's simplify step-by-step.
0.5x−4−(1.5+2.3)
Distribute the Negative Sign:
=0.5x−4+−1(1.5+2.3)
=0.5x+−4+(−1)(1.5)+(−1)(2.3)
=0.5x+−4+−1.5+−2.3
Combine Like Terms:
=0.5x+−4+−1.5+−2.3
=(0.5x)+(−4+−1.5+−2.3)
=0.5x+−7.8
Answer: C $1.51
To solve this, start with a proportion. Put the CPI numbers on the left and the apple juice prices on the right.
You will have:
82.4/130.7 = 0.95/x
Cross multiply to solve and you will get the price of the juice is $1.51.
19 * 42 + 19 * 58 =
19(42 + 58) =
19 * 100 =
1900
-4/4 can be reduced to -2.
(-8/4) can be reduced to -1.
What you have to do next is to add -1-(-2).
The final answer is 1.
Hope that helps!!!.
An ordered pair (x,y) is a solution to a system of equations if it makes all the equations true.
Let's check whether (–1, 5) makes the equations true.
Plugging –1 in the first equation for x and 5 in for y, we get
–1 + 5 = 4: TRUE
Plugging –1 in the second equation for x and 5 in for y, we get
–1 – 5 = –6: TRUE
Since it makes both the equations true, it's a solution to the system of equations. So the answer choice is D, the 4th one.
