Answer:
72÷6=12
so at the nursery it cost $12 per shrub
66÷6=11
so at the store it cost $11 per shrub
so if you buy 21 shrubs from the nursery it will cost: 12×21=$252
but if you buy 21 shrubs from the store it only cost: 11×21=$231
$252-$231=$21
Interfere are numbers that can be neagative
Or positive. Rational numbers are numbers that can be put into fractions. Irrational numbers cannot be put into a fraction
Answer:
28x
Step-by-step explanation:
Answer:
(f-g)(x) = 11x+4
Step-by-step explanation:
(f-g)(x) = f(x) - g(x)
This means we have
3x+10x-(2x-4)
This gives us
3x+10x-2x--4
3x+10x-2x+4
13x-2x+4
11x+4
Make a system of equation before finding the numbers. d stands for denominator and n stands for the numerator.
⇒ d = n - 4 (first equation)
⇒ (n + 3)/(d + 3) = 2 (second equation)
Simplify the second equation
(n + 3) / (d + 3) = 2
(n + 3) = 2(d + 3)
n + 3 = 2d + 6
Solve the equation system by subtituting d with n-4 from the first equation into the second equation
n + 3 = 2d + 6
n + 3 = 2(n - 4) + 6
n + 3 = 2n - 8 + 6
n + 3 = 2n - 2
n - 2n = -2 - 3
-n = -5
n = 5
The original numerator is 5
Find the original denominator by inputing 5 as numerator to one of the equation
d = n - 4
d = 5 - 4
d = 1
The original denominator is 1
So the original fraction is 5/1
