Expand and collect like terms:
10x > 5(x-4)
10x > 5x-20
5x > -20
x > -4, so the answer is B
Answer:
Sam invested $1200 at 8% and $600 at 6%
Step-by-step explanation:
A linear system with two equations can be modeled from the information given. Let 'x' be the amount invested at 8% and 'y' the amount invested at 6%
The sum of both amounts invested at an 8% rate and 6% rate equals 1800
The yearly income on the 8% investment was $24 more than twice the income from the 6%
Solving the linear system:
Sam invested $1200 at 8% and $600 at 6%
Answer:
B.
Step-by-step explanation:
Try solving:
13x - 5 = - 5 + 13x
13x - 13x = -5 + 5
0 = 0.
Therefore it is an identity.
We could make x any real value and the identity would hold.
Answer: Hal
Step-by-step explanation:
47.5/250 = $0.189
Cal pays $0.189 per pencil
59.50/350 = $0.17
Hal pays $0.17 per pencil
Answer:
Fraction: 1 / 20
Decimal: 0.05
Step-by-step explanation:
Fraction Answer:
step 1: convert the percent to a fraction which would be 5 / 100
step 2: find the greatest common factor which is 5
step 3: divide 5 / 5 = 1
step 4: divide 100 / 5 = 20
step 5: write your new simplified fraction
Decimal Answer:
step 1: convert the percent into a decimal which is 0.05
step 2: write your new decimal answer