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2 years ago

Angelina has five cakes. She wants to cut them into 2/5 pieces. How many pieces will she be able to cut?

2 answers:

6 0

Answer:
She will be able to cut them into 12.5 pieces

Explanation:
We know that the total number of cakes is 5 cakes and that the portion of each piece would be $\frac{2}{5}$ .

To know the total number of pieces she can divide, we would simply divide the total number of cakes by the portion of each cake as follows:
number of pieces = $\frac{5}{ \frac{2}{5}}$

number of pieces = $\frac{25}{2}$

number of pieces = 12.5 pieces

Hope this helps :)

GuDViN [60]2 years ago

6 0

Answer:

12 pieces

Step-by-step explanation:

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Compound interest In Exercise,$3000 is invested in an account at interest rate r,compounded continuously.Find the time required

xenn [34]

Answer:

(a) 8.15

(b) 12.92

Step-by-step explanation:

Given: P = $3000, r = 0.085

$A = Pe^{rt}$

Where

A is the Amount

P is the Principal

r is the rate

t is the time

(a) For the amount to double, A = 2 × P

A = 2 × $3000

A = $6000

$6000 = 3000e^{0.085t}$

$\frac{6000}{3000} = e^{0.085t}$

$2 = e^{0.085t}$

Take $log_{e}$ of both sides

$log_{e}2 = log_{e}e^{0.085t}$

But $log_{e}e = 1$

∴ $ln2 = 0.085t$

$t = \frac{ln2}{0.085}$

$t = \frac{0.693}{0.085}$

t = 8.15

(b) For the amount to double, A = 3 × P

A = 3 × $3000

A = $9000

$9000 = 3000e^{0.085t}$

$\frac{9000}{3000} = e^{0.085t}$

$3 = e^{0.085t}$

Take $log_{e}$ of both sides

$log_{e}3 = log_{e}e^{0.085t}$

But $log_{e}e = 1$

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$t = \frac{ln3}{0.085}$

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2 years ago

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vladimir1956 [14]

Answer:

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Step-by-step explanation:

27 is a multiple of 9 (9 x 3)

28 comes after, and is a multiple of 4 (4 x 7)

Hope this answer helps you!! :)

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