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3 years ago

1. Samuel paid #34.20 for a blanket. If the marked price of the blanket is #41.78. What is the discount?

Mathematics

1 answer:

Slav-nsk [51]3 years ago

4 0

Answer:

1. The discount is 10%

2. 250

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Below is data collected from a random sample of 80 students regarding

Vsevolod [243]

Corrected Question

Below is data collected from a random sample of 80 students regarding their fitness habits. If the entire school has 600 students, then what is a reasonable estimate for the number of students who consider themselves to have an average fitness habits.

Answer:

(D)330

Step-by-step explanation:

Out of a random sample of 80 students

44 considered themselves to have AVERAGE fitness habits.

Relative Frequency of Students with average fitness habits=44/80

Therefore, out of the total population of 600 students

Expected Number of Students with average fitness habits

=Relative Frequency of Students with average fitness habits X Total Population

$=\dfrac{44}{80}X600\\\\ =330$

The correct option is D.

3 0

4 years ago

Write and solve an inequality for x.

maksim [4K]

x + 2 > 5

x > 3

Answer is the 2nd option

x + 2 > 5; x > 3

8 0

3 years ago

Read 2 more answers

The area of Canada is approximately 1 x 107 square miles. The area of Italy is approximately 3 x 105 square miles. Which stateme

Ostrovityanka [42]

A little more than 2 times the size of Canada

3 0

3 years ago

The length of a rectangle is the square root of 100 times an unknown number, x. The width is one-half an unknown number, y, less

ELEN [110]

For this problem,all we have to do is translate the word problem into algebraic equations. The equations are as follows:

L = √100 * x = 10x
W = 1/2*y - 3/2*x

Since A is equal to length times width
A = LW
If L is given, we can find the x. Therefore, we must set the equation where the dependent variable is y and the independent variable is x.

125 = LW
W = 125/L
1/2*y - 3/2*x = 125/10x
10x(1/2*y - 3/2*x) = 125
5xy - 15x² = 125
xy - 3x² = 25
y = (25+3x²)/x
y = 25/x + 3x

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4 years ago

Evaluate 7y - 5x^2 when x =2 and y=3

erica [24]

Answer:

Step-by-step explanation:

7x3=21

2x2=4

4x5=20

21-20=1

7 0

3 years ago