Answer:
<em>Hey there Marcus! LOL Anyways.. this answer would be..</em> It is one-half the area of a rectangle of length 4 units and width 5 units.
Answer:
17
Step-by-step explanation:
Answer:
figure A
Step-by-step explanation:
it’s in the same cordinates but reflected across the x axis
Suppose the chef mixes x mL of vinegar with y mL of the dressing with 5% vinegar. She wants to end up with a 150 mL mixture, so
x + y = 150
Each mL of pure vinegar contributes - no surprise here - 1 mL of vinegar to the new mixture. Each mL of the 5% vinegar dressing contributes 0.05 mL of vinegar. She wants a dressing with 24% vinegar, meaning 24% of the 150 mL solution should be vinegar, or 36 mL, so
x + 0.05y = 36
Now
x + y = 150 ==> y = 150 - x
x + 0.05(150 - x) = 36 ==> x + 7.5 - 0.05x = 36 ==> 0.95x = 28.5 ==> x = 30
which gives
y = 150 - x ==> y = 120
Answer:
x = -1
y = 7
Step-by-step explanation:
We have a system of equations and are asked to solve using substitution.
y = -7x
2x - y = -9
Since we have an equation for y by itself, we can plug the first equation into the second.
2x - (-7x) = -9
Distribute :
(-(-7x))
2x + 7x = -9
Add like terms :
9x = -9
Divide 9 by both sides to get x :
x = -1
Now that we know x, we can plug it into the first equation to find y :
y = -7(-1)
y = 7