Answer:
a = - 3 and b = 4
Step-by-step explanation:
Given

Simplify 
=
=
×
= 3
Thus expression can be written as

Multiply numerator/denominator by 
noting that
×
= 2
= 
= 
Dividing each term on the numerator by 2
= 4
- 3
= - 3 + 4
with a = - 3 and b = 4
Answer:
The value of x is 6
Step-by-step explanation:
we know that
If two angles are supplementary, then their sum is equal to 180 degrees
so
In this problem
m∠C+m∠E=180°
we have
m∠C=112°
m∠E=(3x+50)°
substitute and solve for x
112°+(3x+50)°=180°
3x+162=180
3x=180-162
3x=18
x=6
A.


cost is $16.50
B.

rearrange to solve for t:

C. This is the same as part B, only the rate changed

they ask for the greatest number of minutes, so we round down (take the floor of the value).
the answer is 105 minutes.
I have no idea. Where is the diagram.
Answer:
x=28
Step-by-step explanation:
4(x-5)=92
4x-20=92
add 20 to both sides
4x=112
divide 4 on both sides
x=28