$91 because 10% of 70 is $7 and 20% of 70 is $14 so 7+14+70= $91
Answer:
4x-3 is the expression to your question
I think it might be the 3 one and if that's not right then it would be the first one.
Answer:
x=3 and y=4
Step-by-step explanation:
Let's solve your system by substitution.
x+y=7;x+2y=11
Step: Solvex+y=7for x:
x+y=7
x+y+−y=7+−y(Add -y to both sides)
x=−y+7
Step: Substitute−y+7forxinx+2y=11:
x+2y=11
−y+7+2y=11
y+7=11(Simplify both sides of the equation)
y+7+−7=11+−7(Add -7 to both sides)
y=4
Step: Substitute4foryinx=−y+7:
x=−y+7
x=−4+7
x=3(Simplify both sides of the equation)
Answer:
x=3 and y=4
PLS BRAINLIEST
