The slope is -4/1
(down 4, over 1)
Answer:
150 shirts and 75 jeans
Step-by-step explanation:
s = shirts
j = jeans
12s+28j = 3900
The profit on the shirts is 70 percent so we multiply 12 by .7
12*.7 = 8.4
The profit on the jeans is 125 percent so we multiply 28 by 1.25
The profit was 3885
28*1.25 = 35
8.4s+ 35j=3885
We now have 2 equations and 2 unknowns
12s+28j = 3900
8.4*s+ 35j=3885
I am going to solve by elimination
Multiply the first equation by -.7
-.7 (12s+28j )= -.7*3900
-8.4s -19.6j=-2730
Add this to the second equation
-8.4s -19.6=-2730
8.4s+ 35j=3885
------------------------
15.4j = 1155
Divide each side by 15.4
15.4j/15.4= 1155/15.4
j = 75
Now we need to find the shirts.
We will substitute j=75
12s+28(75) = 3900
12s +2100 = 3900
Subtract 2100 from each side
12s = 3900-2100
12s = 1800
Divide by 12
12s/12 = 1800/12
s =150
Answer:
36 miles.
Step-by-step explanation:
We have been given that Karina rode her bike up a mountain trail at an average of 4 mph. Then she rode it back down the trail at an average of 20 mph. The entire trip took 3 hours.
Substitute the given values:
The total distance is 72 miles, so the distance going up would be half of 72.
Therefore, Karina went 36 miles up the mountain.
The answer to this question would be -1.
<span>1/2 + 1/2 + 9 - 11
1/2 + 1/2 = 1
1 + 9 = 10
10 - 11 = -1
Therefore, this will equate to -1.</span>
Answer:
72/5
Step-by-step explanation:
Multiply both sides of equation by x.
8= 5/9 x
Multiply both sides by 9/5.
8 times 9/5 = x
72/5 = x
