Answer:
I think it is C
Step-by-step explanation:
Answer:
x=2
y=2
x=1.3 or 4/3
y=-4
Step-by-step explanation:
Answer:
A single cheeseburger order cost $1.23
A single fries order cost $1.28
Step-by-step explanation:
Let the cost of cheeseburgers be c and the cost of fries be f
Mathematically;
4c + 3f = 10.75 ••••(i)
Secondly;
5c + 2f = 11.2 ••••(ii)
We have two equations to solve simultaneously;
Multiply i by 2 and ii by 3
8c + 6f = 21.5
15c + 6f = 33.6
Subtract ii from i
-7c = -12.1
c = 1.73
Recall;
5c + 2f = 11.2
5(1.73) + 2f = 11.2
2f = 11.2-8.65
2f = 2.55
f = 2.55/2
f = 1.28
Answer:
Expression: p = 320 x 1.2
Your price: $384
Step-by-step explanation:
Finding 20% is the same as multiplying that number by 0.2 adding it on to the original number. This can also be represented as multiplying by 1.2.
This means the expression is p = 320 x 1.2, where p is the new price.
This gives you $384.
The answer is 654
1298-4x=171+3x
1127-4x=3x
1127=7x
161=x now plug this in to the original equations 1298-4(161)=171 + 3(161)
1298-644 =171 + 483
654 = 654