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2 years ago

5

18. The radius of a circle is increasing at a constant rate of 3 cm per second. What is the rate of increase (at any point)

1 answer:

kkurt [141]2 years ago

4 0

Step-by-step explanation:

you should have to give more points for this answer

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You have the option of buying 20 tickets at the fair for 15$ or 45 for 27$ which is te best deal

Lostsunrise [7]

45 tickets for 27$is definitely the best deal because if you go with the first option and buy it twice you will pay 25$for only 40 I can’t Explain properly but definitely 45 for 26$

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2 years ago

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Colin invests £1500 into a savings account. The bank gives 4% compound interest for the first 3 years and 5% thereafter. How muc

fomenos

1500(1+0.04)^3 = 1687.30

1687.30(1+0.05) = 1771.67 to the nearest pound: 1772

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2 years ago

xz_007 [3.2K]

Answer:

1) $n = 84$

2) $n = 78$

3) $n = 24$

4) $n = 16$

5) $n = 35$

Step-by-step explanation:

To solve each proportion, we apply cross multiplication.

Question 1:

$\frac{5}{12} = \frac{35}{n}$

$5n = 35*12$

Simplifying both sides by 5

$n = 7*12 = 84$

Question 2:

$\frac{n}{52} = \frac{180}{120}$

$120n = 52*180$

Simplifying both sides by 20

$6n = 52*9$

Simplifying by 3

$2n = 52*3$

Simplifying by 2

$n = 26*3 = 78$

Question 3:

$\frac{18}{n} = \frac{21}{28}$

$21n = 18*28$

Simplifying both sides by 7

$3n = 18*4$

Simplifying both sides by 3

$n = 6*4 = 24$

Question 4:

$\frac{n}{4} = \frac{24}{6}$

$\frac{n}{4} = 4$

$n = 16$

Question 5:

$\frac{10}{16} = \frac{n}{56}$

$16n = 56*10$

Simplifying by 2, both sides

$8n = 56*5$

Simplifying by 8, both sides

$n = 7*5 = 35$

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2 years ago

Please help was struggling

WITCHER [35]

Answer:

Take 4.25 x 8.6= 36.55 feet^2

Step-by-step explanation:

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2 years ago

Solve the following equation by factoring: 9x^2 – 3x – 2 = 0

crimeas [40]

The answer is A. X=-1/3 or x=2/3

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