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2 years ago

9

In September a clothing store had a sale where you could get 5 scarves for $28.35. In October the price was changed to 7 scarves

for $40.39. In which month did a scarf cost the most?

1 answer:

kykrilka [37]2 years ago

7 0

Answer: october

Step-by-step explanation:

for october its 5.77

and for september its 5.67

so october is the answer

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On the 1st January 2014 Carol invested some money in a bank account.

Ghella [55]

Answer:

$\large \boxed{\text{\pounds 23 360.00}}$

Step-by-step explanation:

The formula for the accrued amount from compound interest is

$A = P \left(1 + \dfrac{r}{n}\right)^{nt}$

1. Amount in account on 1 Jan 2015

(a) Data:

a = £23 517.60

r = 2.5 %

n = 1

t = 1 yr

(b) Calculations:

r = 0.025

$\begin{array}{rcl}23517.60 & = & P\left (1 + \dfrac{r}{n}\right)^{nt}\\\\& = & P\left (1 + \dfrac{0.025}{1}\right)^{1\times1}\\\\& = & P (1 + 0.025)\\ & = & 1.025 P\\P & = & \dfrac{23517.60 }{1.025} \\\\& = & 22 944.00 \\\end{array}$

The amount that gathered interest was £22 944.00 but, before the interest started accruing, Carol had withdrawn £1000 from the account.

She must have had £23 944 in her account on 1 Jan 2015.

(2) Amount originally invested

(a) Data

A = £23 944.00

$\begin{array}{rcl}23 944.00 & = & 1.025 P\\P & = & \dfrac{23 944.00 }{1.025} \\\\& = & \mathbf{23 360.00} \\\end{array}\\\text{Carol originally invested $\large \boxed{\textbf{\pounds23 360.00}}$ in her account.}$

3. Summary

1 Jan 2014 P = £23 360.00

1 Jan 2015 A = 23 944.00

Withdrawal = <u> -1 000.00 </u>

P = 22 944.00

1 Jan 2016 A = £23 517.60

5 0

3 years ago

There are 32 girls and 18 boys in the chorus. what percent of the students in the chorus are girls?

klio [65]

So the total number of students is 50, and you want to find 32/50. and that is equal to 64%

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3 years ago

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Solving a system of linear equations algebraically:

guajiro [1.7K]

It was so easy xD

its x=1

y=12×1+7

y=-6×1+25

=19

8 0

3 years ago

I need help plz someone

stich3 [128]

Answer:

5C 6D

Step-by-step explanation:

5, a^2 = b^2 + c^2

6,

A is wrong because two distinct lines intersect at 1 point only or 0 (they will never intersect when they are parallel)

B & C are wrong because lines contain infinite point

E is wrong because 2 parallel lines will never intersect, as the result, their common points = 0

6 0

3 years ago

What is the value of the expression below?

posledela

It is 19. because if it’s -8 you add the other 8 so that makes 0 and then there’s 19 left so it’s 19

6 0

3 years ago

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