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erastovalidia [21]
3 years ago
6

Kayeigh and Rachel each buy clothes in the sale.kayleigh's clothes normally cost £50 but had £5 off . Rachel's clothes normally

cost £20 but had £3 off . Who's clothes had the biggest percentage discount
Mathematics
2 answers:
PolarNik [594]3 years ago
5 0
Kaleighs clothes : 

£50=100%
so to find one percent you divide by 100
£0.5=1%
if you then do how much of (£5) by one percent which is (£0.5)
then you get 
5 divided by 0.5 to get 10
which means kaleighs clothes are 10% off 

mimick this idea for Rachels clothes and the greater the percentage, shows whos clothes had the biggest percentage discount
Dvinal [7]3 years ago
3 0
(5/50) x 100 = 10%
(3/20) x 100 = 15%
So Rachel has the biggest discount
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I need these 2 questions answered please.​
Sav [38]

The area of the circle is 28 ft square.

The area of the triangle is 30 ft square.

Step-by-step explanation:

1) The area of the circle= π*r^2

where π= 3.14(default value) and "r" is the radius of the circle.

Here, Radius of the circle(r)= 3 ft

Area = 3.14*3*3

        = 28.26 ft sq.= 28 ft sq(rounded to the nearest whole number)

2) The triangle has the base= 10 feet and height= 6 feet

The Area of the triangle= 1/2(b)(h)

where "b" is the base and "h" is the height of the triangle.

Substitute b=10 and h=6 ,

Area of triangle= 1/2(10 ft)(6 ft)= 60/2= 30 feet sq.

5 0
3 years ago
The sample consisted of 50 night students, with a sample mean GPA of 3.02 and a standard deviation of 0.08, and 25 day students,
bulgar [2K]

Answer: The test statistic is t= -0.90.

Step-by-step explanation:

Since we have given that

n₁ = 50

n₂ = 25

\bar{x_1}=3.02\\\\\bar{x_2}=3.04\\\\\sigma_1=0.08\\\\\sigma_2=0.06

So, s would be

s=\sqrt{\dfrac{n_1\sigma_1^2+n_2\sigma_2^2}{n_1+n_2-2}}\\\\s=\sqrt{\dfrac{50\times 0.08^2+25\times 0.06^2}{50+25-2}}\\\\s=0.075

So, the value of test statistic would be

t=\dfrac{\bar{x_1}-\bar{x_2}}{s(\dfrac{1}{n_1}+\dfrac{1}{n_2})}\\t=\dfrac{3.02-3.04}{0.074(\dfrac{1}{50}+\dfrac{1}{25})}\\\\t=\dfrac{-0.04}{0.074(0.02+0.04)}\\\\t=\dfrac{-0.04}{0.044}\\\\t=-0.90

Hence, the test statistic is t= -0.90.

7 0
3 years ago
Solve. Check your solution.<br> -4+s= -68
Andrews [41]
-64 + -4 = -68

That is because 64 + 4 = 68 and the negatives in this case are the same way as if it was all positive.
6 0
2 years ago
Read 2 more answers
2) A pair of socks is purchased for $3.00 it is then sold for $4.00 What is the percent of change that
Veronika [31]

Answer:

5% change

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
How do you do this?<br>please help if possible!
stellarik [79]
(a) need to find the number of books, we'll call it "b". then the money (6w) minus the cost of books (17b) equals change left over (w)
6w - 17b = w
6w - w = 17b
5w = 17b
(5/17)w = b

(b) if w = 34
(5/17) *34 = b
10 = b
7 0
3 years ago
Read 2 more answers
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