Answer:
x = 10
Step-by-step explanation:
If f(x) equals 3x-7 and also equals 23, then you can set 3x-7 equal to 23
3x - 7 = 23
3x = 30
x = 10
Answer:
the measure of supplementary angles must add up to 180
Step-by-step explanation:
complementary angles add up to 90°
angles on a straight line are supplementary angles which add up to 180°
5-3z-18=z-1+8z
Add like terms
-13-3z=9z-1
Move terms
-12z=12
Divide both sides by 12
z=1
Answer:
A soda costed $3.50.
Step-by-step explanation:
<u>Step 1)</u> We know that a slice of pizza and a soda costs $9 (from Kate's order). With a burger added (Billy's order) it would cost $13.50.
So a burger would cost <em>$4.50</em>:

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<u>Step 2)</u> We also know a burger and a soda costs $8. So we subtract the cost of the burger from Louis' order to find the cost of the soda:

Cost of soda: 
Answer:
58988
Step-by-step explanation:
3556+55432
=58988