MATHEMATICS MIDDLE SCHOOL

5. Lenny is moving tables in the schoolcafeteria. He places all the tables in a
7 X 4 array. How many tables are in
the cafeteria?​

Answers

Answer 1
Answer: The answer would be 28 because u count 7 4 times

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4. What is the formula to find the volume of a sphere?(2 points)V= Tr²hOvrhv 2013​

If equation for the straight line passing through the point (-2; 3 ) and (- 3; 2)

Answers

The equation for that line is y=x+5

What is the slope of the line that contains the points (4,8) and (9,8)? What type of line is it? A. The line has no slope; it's a vertical line.
B. Slope = 0; horizontal line
C. The line has no slope; it's a horizontal line.
D. Slope = 0; vertical line

Answers

I believe the answer is B

What is $9 ; 10 percent increase

Answers

For this case we can make the following rule of three:
 $ 9 ---------------> 100%
 x -----------------> 110%
 From here, we must clear the value of x: 
 We have then:
 x = (110/100) * (9)x = 9.9
 Answer:
 $ 9 plus 10% increase results in:x = 9.9
first you turn the % into decimal (.10)
then you multiply .10 by 9 (.90)
if its increase you add .90 to 9$ (9.90$)
the final answer is 9.90$
:)

How many thousands are in 273,050

Answers

3 thousands, glad to help ! :)

Eddie has saved up $45 to purchase a new camera from the local store. The sales tax in his county is 7% of the sticker price. Write an equation and solve it to determine the value of the highest priced camera Eddie can purchase with his $45, including the sales tax. Round your answer to the nearest penny.x − 0.07x = 45; $48.39
0.7x = 45; x = $64.29
7x = 45; x = $6.43
x + 0.07x = 45; x = $42.06

Answers

Let the price (before tax) be x. The tax is 7% of x, so it is 0.07x. The price plus the tax add up to $45. x + 0.07x = 45

Gail has a rectangular rug. The diagram bellows shows the dimensions of Gail's rug. What is the area of Gail's rug?A) 7 3/4 square feet

B) 10 3/4 square feet

C) 13 3/4 square feet

D) 15 1/2 square feet

Answers

The area is 13 3/4.

Area = Length x Width

You cannot multiply mixed numbers, so you have to turn 2 3/4 into a mixed number by doing denominator x whole number x  numerator now 2 3/4 turns into 11/4.  Now you do 11/4 x 5, or 11/4 x 5/1 ( same thing ). The product of these two fractions is 55/4. Turn it into a mixed number and it turn into 13 3/4.
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