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3 years ago

A shopping club is having a a sale. members and non-members of the club recieve different discounts, as shown below

Mathematics

1 answer:

lana [24]3 years ago

5 0

Answer:

Step-by-step explanation:

580 - 58 (10% of 580) = 522

522 - discount price (20) = 502

Sally is paying 502 for her camcorder

990 - 247.5 (25% of 990) = 742.5

742.5 - 20 = 722.5

Sally is paying $502

Tabitha is paying $722.5

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Bad White [126]

The answer should be 6 I.e 6^1 as with indices rules you need to subtract the powers (-3-(-4)) which equals 1

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3 years ago

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How do you solve (3*x) *7

shtirl [24]

$3\cdot x\cdot7=21x$

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3 years ago

Complete the following sentence. A radius is________ the diameter.

Ulleksa [173]

Answer:

1/2

Step-by-step explanation:

The radius is 1/2 of the diameter

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Jenna is at a fair with four friends. They all want to ride the roller coaster, but only three people can fit in a car. How many

pav-90 [236]

Answer:

They can make 10 different groups of three.

Step-by-step explanation:

The order in which the people are in the car is not important, so we use the combinations formula to solve this question.

Combinations formula:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

How many different groups of three can the five of them make?

Combinations of 3 from a set of 5. So

$C_{5,3} = \frac{5!}{3!(5-3)!} = 10$

They can make 10 different groups of three.

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2 years ago

List the integers that satisfy both these inequalities, 2x+9 -12

Flura [38]

Answer:

x < -10.5

Step-by-step explanation:

list the integers that satisfy both these inequalities, 2x+9 <-12

Subtract 9 from both sides;

2x +9 - 9 < -12-9

2x < -21

x < -21/2

x < -10.5

Hence all the integers are values of x less than 10.5

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2 years ago