Answer:
21 * 2 = 42
21 + 2 = 23
Step-by-step explanation:
well I know that 6 * 7 = 42 so I’m assuming that’s correct
Then 11 + 12 = 23 it could be the answer I’m not positive for this one though.
The first one should be correct.
Maybe try
21 * 2 = 42
21 + 2 = 23
So he bought 8.5 pounds, and you have to find out how many ounces he bought. That would mean that you have to convert pounds to ounces. There are 16 ounces in 1 pound. In 8.5 pounds, there are 136 ounces.
-square root 3 over 3
hope this helps.
The 0.7 gives the next height of each bounce
For example say first bounce was 7 ft then next bounce will be t*0.7 = 4.9 ft
Then next boune will be 7*(0.7)^2 and so on.
Answer:
Given the system of equations:
.....[1]
.....[2]
We can write equation [1] as;
2(y-x) = 12
Divide both sides by 2 we get;
or
y = x+6 ....[3]
Substitute equation [3] in [2] we get;
Subtract 36 from both sides we have;
Combine like terms;

or

By zero product property:
x =0 and x+6 = 0
or
x = 0 and x = -6
now, substitute the given values of x in [3] we have;
for x = 0
y = 0+6 = 6
for x = -6
y = -6 + 6 = 0
Therefore, the solution for the given system of equation is, either (0, 6) or (-6, 0)