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4 years ago

Decrease £36 by 21%

Mathematics

1 answer:

Trava [24]4 years ago

6 0

£36 x 0.79 = £28.44

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Two math classes took the same quiz. The scores of 10 randomly selected students from each class are listed below. • Sample of C

padilas [110]

Answer:

Step-by-step explanation:

First you have to find the medians which is when you put the numbers in number order and find the one in the middle.

Class A: 60,65,70,70,75,80,80,85,90,90

=77.5

Class B: 75,85,85,85,90,90,90,90,95,100

=90

That the class B is more advanced, and they probably studied.

6 0

3 years ago

F(x) = V2x<br> g(x) = V18x<br> Find (f .g)(x). Assume x2 0.

Nina [5.8K]

Answer:

fog(x) is D = 6 $\sqrt{x}$

Step-by-step explanation:

I. square all value, so f(x) is 2x then g(x) is 18x

II. Replace x.value in f(x) with g(x).value = 2(18x)

III. If x is 1, 2(18*1) will be 36; find root, so answer is 6

If x is 2, 2(18*2) will be 72; find root, so answer is 6 $\sqrt{2}$

Hope it help, sorry if I'm done it wrong, but I think it's gonna be the right answer. :)

3 0

3 years ago

a shop owner blends three types of tea,a,b and c,in the ratio 6:4:7 . if the mass of tea c in the mixture is 28 kg , find the di

aleksley [76]

6 : 4 : 7

24 : 16 :28

If

6 is a
4 is b
7 is c

You have to multiply all the numbers by 4 in order to find a common ratio

8 0

4 years ago

Read 2 more answers

Dylan bought 3 identical shirts online for a total cost of $71.83 including a flat rate of $7.99 for shipping. Drag numbers to c

Masteriza [31]

Answer:

Shirt #1

x = 63.84 - y - z

Shirt # 2

y = 63.84 - x - z

Shirt # 3

z = 63.84 - x - y

Step-by-step explanation:

First calculate the value of the 3 shirts as follows:

$ 71.83 - $ 7.99 = $ 63.84.

$ 63.84.

The general equation would be, where x is the value of shirt # 1, and the value of shirt # 2 and z is the value of shirt # 3:

x + y + z = 63.84, then for each shirt would be the following equations:

Shirt #1

x = 63.84 - y - z

Shirt # 2

y = 63.84 - x - z

Shirt # 3

z = 63.84 - x - y

For example, if we give values (always the sum of both under 63.84) to two shirts, x = $ 20, y = $ 30 then the value of shirt # 3 would be:

6 0

4 years ago

What is the probability of randomly selecting an odd number from the numbers 1-15?

puteri [66]

Answer:

1, 3,5,9,11,13,15

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers