Answer:
In 2.2 years they will be equal the same value.
Step-by-step explanation:
Let x = Number of years;
Elena = 23000x + 15000
Marc = 9000x + 46000
Then if we set Marc equal to Elena:
23000x + 15000 = 9000x + 46000
or
23000x - 9000x = 46000 - 15000
14000x = 31000
x = 31000 / 14000
x = 2.2
=> In 2.2 years they will be equal the same value.
=> In 2 years 2 months and 17 days Marc and Elena Cars' mileage will be equal.
Slope: (y2-y1)/(x2-x1)
(8-2)/(1+1) = 6/2 = 3
The slope is 3
Answer:
This is wrong But if you ask me what is -4= -2² and -20= -2×10¹
Answer:
3. x=14° y=7
4. x=29° y=3
Step-by-step explanation:
3. this is a 45 - 45- 90 triangle
so the side is a-a-a√2 ( two sides are the same)
4y-3=10+2y+1 -- collect like terms
4y-2y=10+1+3
2y=14
y=7
find the angle of the inside triangle
180-59-90 =
31°
we know the big triangle was a 45-45-90 angle
so x+31=45
x=45-31
x=14°
4. this is a square, all sides are same
5y+3y=24
8y=24
y=3
angle is 90°
x+x+9y+5=90
we know y=3 --substitute
x+x+9(3)+5=90
2x+27+5=90
2x=90-27-5
2x=58
x=58/2
x=29
The beginning is 4 go down 5 and over one