Answer:$8
Step-by-step explanation:
If you multiply 2(the amount of the candy bars cost) and 4(the amount of candy bars bought) you get the amount that it cost total. ($8)
Answer:
x = 1/4
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
The GCF is x^2 because nothing can go into 13 except 1.
<span>A) 5x + 7y = 3
B) 2x + 3y = 1
Multiplying Equation B by -2.5
</span><span>B) -5x -7.5y = -2.5 Then adding this to Equation A)
A) 5x + 7y = 3</span>
-.5y = .5
y = -1
Since
<span>2x + 3y = 1 then
2x -3 = 1
then x = 2
</span>
Answer:
a=18.7 or 19 rounded up
Step-by-step explanation:
Use Pythagoras Thereom
a^2=8^2+17^2
a^2=64+289
a^2=353
√353
a=18
