Answer:
12×<u>3</u>
4
= 9
there 9 children had ana apple
Solve for x and y
y = 4x+2
y = -2x - 3
<h3><u>Answer:</u></h3>
and 
<h3><u>Solution:</u></h3>
Given equations are:
y = 4x+2 --------- eqn 1
y = -2x - 3 ---------- eqn 2
We have to solve both equations and find values of "x" and "y"
Substitute eqn 1 in eqn 2
4x + 2 = -2x - 3
Combine like terms we get,
4x + 2x = -3 - 2
On solving,
6x = -5
Substitute "x" value in eqn 1
Thus and
Answer:
16 quarts
Step-by-step explanation:
Let's say x is the volume of water.
Initially, the amount of antifreeze is the concentration times the volume: 0.90 (8).
After the water is added, the amount of antifreeze is the new concentration times the new volume: 0.30 (8 + x).
Since the amount of antifreeze doesn't change, we can set these equal and solve for x.
0.90 (8) = 0.30 (8 + x)
7.2 = 2.4 + 0.30 x
4.8 = 0.30 x
x = 16
16 quarts of water should be added.
Answer:
29
Step-by-step explanation:
5-(4*(6-12))=29
-3t+11>20
add 3t to both sides
11>20+3t
minus 20 both sides
-9>3t
divide both sides by 3
-3>t
t<-3
last one
