<span>2x+y=8
2x+x-7=8
3x=15
x=5
y=5-7
y=-2</span>
Answer:
Did you mean she has a bag that contains 300 chips? if so yes.
Step-by-step explanation:
If each cookie gets 6 chips and she makes 40 cookies, you can use multiplication to see.
6*40=240
She has plenty, 60, of chocolate chips left over
m
=
−
2
, (
3,
5
)
Find the value of b
using the formula for the equation of a line.
b
=
11
Now that the values of
m (slope) and b
(y-intercept) are known, substitute them into
y
=
m
x
+
b to find the equation of the line. y
=
−
2
x
+
11
Answer:
x = 34
Step-by-step explanation:
4x - 10 + x + 20 = 180
5x + 10 = 180
5x = 170
x = 34
It takes her (100 mi)/(50 mi/h) = 2 h to get to her destination. She has 1 h 40 min = 100 min for her 100 mi return trip.
.. (100 mi)/(100 min) = (60 mi)/(60 min) = 60 mi/h
She must return at the rate of 60 mph to complete the trip in 3 h 40 min.