Answer:
x = 19, y = -5
Step-by-step explanation:
x + y = 14 => x= 14-y
2x + 4y = 18 => 2(x+2y)=18 => x+2y=9
x+2y=9 => (14 - y) + 2y = 9
14 + y = 9 => y = -5
x + (-5) = 14 => x=19
He can use 4 half dollars, since 2 half dollars make a whole dollar.
He can use 2 regular dollars, since each 1 dollar bill plus another is 2.
He can also use 8 quarters because 4 Quarters makes a whole dollar.
They are equal because if you make 4/5 into a denominator of 10 it is 8/10
Answer:

Step-by-step explanation:
All we have to do is multiply accordingly. I'll use a for an example.
So for the value before the perentheses we multiply that by all of the values in the perentheses.

So the correct answer would be

You can use the same strategy for all the questions, but I'll just answer those straight away.
Also you may notice I put the variable before the constant in question c because the variable should always go before the constant in expressions and equations.
Answer:
18.3 16.5 7.3 12.5
Step-by-step explanation:
Solve 2/3=11/x . Round to the nearest tenth. 18.3 16.5 7.3 12.5 hoped it worked