The answer is 10.
4 a + 5 b when a = 4 and b = - 1.2
First find the multiplier: 5.5% + 1 = 1.0505.
Then we do amount x (multiplier) to the power of how many years.
300 x (1.0505)^5
The answer is <span>383.79696707.
We round this to 2dp, making it £393.80
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Answer:
P = 0.5Q - 20
Step-by-step explanation:
P = kQ + c
substitute Q = 60 , P = 10 into the equation
10 = 60k + c → (1)
substitute Q = 240, P = 100 into the equation
100 = 240k + c → (2)
subtract (1) from (2) term by term to eliminate c
90 = 180k ( divide both sides by 180 )
=
= 0.5 = k
substitute k = 0.5 into (1) and solve for c
10 = 60(0.5) + c
10 = 30 + c ( subtract 30 from both sides )
- 20 = c
then
P = 0.5Q - 20
Answer:
She bought 2 videos and 8 CDs.
Answer:
Answer is x= -4 and y= 3
Step-by-step explanation:

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