Answer:
$132
Step-by-step explanation:
1) In this system of eqn x represents the price of washing cars and y represents the price of washing SUVs
2) From the given eqn,
y = (84 - 4x)/2
and
y = (126 - 3x)/5
equating both the equation,
(84 - 4x)/2 = (126 - 3x)/5
=> 210 - 10x = 126 - 3x
=> 7x = 84
=> x = 12
=> y = (84 - 48)/2 = 18
Hence the co-ordinate of intersection will be (12,18)
3) The total cost of 1 car and 1 suv = x + y = 12 + 18 = $ 30
4) The total earning of hour 3
= 5x + 4y
= 5.12 + 4.18
= 60 + 72
= $ 132
Answer:
A is correct. This line has a negative slope meaning B and D are incorect.
If we count from 0, 3 (y intercept) to the next point on the line -3, 5 we see that the slope is -2/3
therefore A is correct
Step-by-step explanation:
Answer:
c. step three
Step-by-step explanation:
CORRECT WAY
step one: -7/ -2 / 4/9 (flip 4/9)
step two: -7/-2 * 9/4 (simplify)
step three: = 63/8
Step three is incorrect because it's not - it's positive.
She forgot that a negative divided by a negative is a positive.
So -7/-2 is the same as 7/2
Hope this helps ya!!!
Answer:
y is 4
Step-by-step explanation:
x is 3
y is 4 coordinate is (3,4)