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iren [92.7K]
3 years ago
6

It costs £430 to rent a cottage for the weekend. Last year it cost £400. What percentage increase is this?

Mathematics
2 answers:
Serjik [45]3 years ago
6 0

INCREMENT


430-400=30


PERCENTAGE


(30/400)*100


(30/40)*100


300/40=


7.5% is your final answer


I hope I could help

alekssr [168]3 years ago
6 0

Answer:

The percentage increase is 7.5%.

Step-by-step explanation:

Given,

The cost of renting the cottage last year = £400,

While its cost in present = £430,

So,

\text{Percentage change in cost}=\frac{\text{Present cost-Last year cost}}{\text{Last year cost}}\times 100

=\frac{430-400}{400}\times 100

=\frac{3000}{400}

=7.5\%

Hence, the percentage increase in cost is 7.5%.

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2 years ago
Solve each equation by completing the square <br> 6) m² + 16m – 8 = 0
Natali5045456 [20]

Answer:

m = - 8 ± 6\sqrt{2}

Step-by-step explanation:

Given

m² + 16m - 8 = 0 ( add 8 to both sides )

m² + 16m = 8

To complete the square

add ( half the coefficient of the m- term )² to both sides

m² + 2(8)m + 64 = 8 + 64

(m + 8)² = 72 ( take the square root of both sides )

m + 8 = ± \sqrt{72} = ± \sqrt{36(2)} = ± 6\sqrt{2}

Subtract 8 from both sides

m = - 8 ± 6\sqrt{2}

3 0
3 years ago
A store buys a jacket for $20.00 and then sells it to customers for 80% more than that. What is the selling price of the jacket?
Elis [28]
Your answer would be 36.

Hope this helped!
8 0
3 years ago
Read 2 more answers
2. Chaleah deposited 700$ in a new account that earns 5% simple interest. After 4 years,
Oxana [17]

Answer:

Interest earned: $150.85

Total amount: $850.86

Step-by-step explanation:

Y=700(1.05)^4

Put the right side of the equation into a calculator and get

850.85 that's your total, so to get the amount earned subtract the original 700 from it and get 150.85

5 0
2 years ago
Philip and Kevin are hoping to earn enough money to buy concert tickets for a show that costs $225 her concert tickets. Philip a
liubo4ka [24]

Answer:

Kevin will earn the money before than Philip

Philip needs at least 4 weeks

Kevin needs at least 3 weeks

Step-by-step explanation:

Let's call x to the number of weeks

Philip works 6 hours each weekend, which means 6 hours per week, earning $8.75 per hour, which is equivalent to 6*8.75 = $52.5 per week

Philip has already saved $45. Then he needs the next number of weeks:

52.5*x + 45 = 225

x = (225 - 45)/52.5

x = 3.4

Philip needs at least 4 weeks

Kevin works 3 hours per day for 3 days a week, which means 9 hours per week, earning $7.5 per hour, which is equivalent to 9*7.5 = $67.5 per week

Kevin has already saved $30. Then he needs the next number of weeks:

67.5*x + 30 = 225

x = (225 - 30)/67.5

x = 2.9

Kevin needs at least 3 weeks

8 0
2 years ago
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