Jessica has 5 members in the sewing club that she started. In order to get school sponsorship she must have at least 30 members.
2 answers:
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Answer:
see explanation
Step-by-step explanation:
(a)
y = - bx
substitute y = 6 , x = 1 into the equation
6 = a - b → (1)
substitute y = 0 , x = 2 into the equation
0 = - 2b ( multiply through by 2 to clear the fraction )
0 = a - 4b → (2)
multiply (1) by - 4
- 24 = - 4a + 4b → (3)
add (2) and (3) term by term to eliminate b
- 24 = - 3a + 0
- 24 = - 3a ( divide both sides by - 3 )
8 = a
substitute a = 8 into (1) and solve for b
6 = 8 - b ( subtract 8 from both sides )
- 2 = - b ( multiply both sides by - 1 )
2 = b
Then a = 8 and b = 2
(b)
when x = 4
y = - 2(2) = 2 - 4 = - 2
Annie paid 12800 pounds at end of 10 years
<em><u>Solution:</u></em>
Given that Annie borrows 8000 pounds at simple interest rate of 6 %
She also agrees to pay the loan back over a 10 year period
To find: total money paid back at the end of 10 years
The total amount paid is given as:
Total amount = simple interest + principal amount borrowed
The simple interest is given as:
Where, "p" is the principal sum
"n" is the number of years
"r" is the rate of interest
Here, p = 8000 ; r = 6 % ; n = 10 years
Therefore total amount paid at end of 10 years is:
Total amount = 4800 + 8000 = 12800
Thus Annie paid 12800 pounds at end of 10 years