MATHEMATICS HIGH SCHOOL

The regular price of a T-shirt is $14.80. Today, T-shirts are on sale for 0.8 of their regular price. How much will Elias spend if he buys 6 T-shirts today?

Answers

Answer 1

Answer:

its actually $71.04

0.8=4/5 (simplified)

4/5 of 14.80= 11.84

11.84 x 6= 71.04

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The data set represents the number of rings each person in a room is wearing.0, 2, 4, 0, 2, 3, 2, 8, 6

What is the interquartile range of the data?

Answers

Answer: 4

Step-by-step explanation:

First arrange the given data in ascending order :-

$0,0,2,2,2,3,4,6,8$

Number of terms = 9

Second quartile =Median= $(9+1)/(2)=5^(th)\ term=2$

Now, the first quartile $Q_1$ =The median for the lower half of data

= Mean of 2nd term and 3rd term

$=(0+2)/(2)=1$

The third quartile $Q_3$ =The median for the upper half of data

= Mean of 7th term and 8th term

$=(2+8)/(2)=5$

Now, Interquartile range = $Q_3-Q_1=5-1=4$

Hence, the interquartile range of the data =4.

Answer:

Step-by-step explanation:

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Simplify a - {b - [c - (d - e) - f] - g}.

Answers

The key is to work from the middle.

c - (d - e) - f = c - d + e - f

b - (c - d + e - f) - g = b - c + d - e + f - g

a - (b - c + d - e + f - g) = a - b + c - d + e - f + g

Answer:
a - b + c - d + e - f + g

The Martin family is considering building a new house. On the blueprints, the dimensions of the outside of the house are 18 inches wide by 26 inches long. If the house is actually going to be 45 feet wide, what will the actual length of the house be?

Answers

This can be answered through simple ratio and proportion

Let x = width

y = height

x/y = x2/y2 = x3/y3

since

for 18 inches width we have 26 inches as length, therefore

18/26 = 45/y2

y2 = 65 ft

there is no need to convert the units for the smaller dimensions since we are dealing with definite ratios thus unitless.

Between which two integers does square root of 12 lie?A.
3 and 4

B.
5 and 7

C.
11 and 13

D.
143 and 145

Answers

A. 3 and 4

We know the square root of 9 is 3, and the square root of 16 is 4, so the square root of 12, which is between 9 and 16, must be between 3 and 4.

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