Carlos invested part of $3,000 in a 10% certificate account and the rest in a 6% passbook account. The total annual interest fro
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Perimeter = 2 length + 2 width
P = 2(l) + 2(11/4)
(subtract 22/4 from each side)
(divide each side by 2)
7.5 ÷ 2 = l
3.75 = l
The answer is 3.75 or
P = 2(l) + 2(11/4)
7.5 ÷ 2 = l
3.75 = l
The answer is 3.75 or
Answer:
The value of x is hours.
Step-by-step explanation:
Machine A = 5 hours
Machine B = x hours
Machine A and B = 2 hours
Using the formula:
where:
T is the time spend by both machine
A is the time spend by machine A
B is the time spend by machine B
Let multiply the entire problem by the common denominator (5B)
2x + 10 = 5x
Collect the like terms
10 = 5x - 2x
10 = 3x
3x = 10
Divide both side by the coefficient of x (3)
hours.
Therefore, Machine B will fill the same lot in hours.
Answer:
x=7
y=10.5
Step-by-step explanation:
1. You can apply the method of substitution, as you can see below:
- Substitute into the other equation and solve fo x:
- Substitute the value of x obtain into the first equation, then the value of y is: