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AleksandrR [38]
3 years ago
10

What is 7 7/8- 31/4 simplified

Mathematics
2 answers:
Alona [7]3 years ago
7 0
7\frac{7}{8}-\frac{31}{4}=7\frac{7}{8}-\frac{28+3}{4}=7\frac{7}{8}-7\frac{3}{4}=7\frac{7}{8}-7\frac{3\cdot2}{4\cdot2}=7\frac{7}{8}-7\frac{6}{8}=\boxed{\frac{1}{8}}
Alexeev081 [22]3 years ago
4 0
7 7/8  = 63/ 8 ;
31/ 4 = 62/ 8 ;
63 / 8 - 62 / 8 = 1 / 8 .
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A soup can, shaped like a cylinder, has a diameter of 3.5 inches and a height of 5 inches. Each serving of soup is 15 cubic inch
marissa [1.9K]

Answer:

The answer to your question is Cost of a serving = $0.62

Step-by-step explanation:

Data

diameter = 3.5 in

height = 5 in

each serving = 15 in³

Cost of the can = $1.99

Process

1.- Calculate the volume of the can

Volume = πr²h

-Substitution

Volume = (3.14)(3.5/2)²(5)

-Simplification

Volume = (3.14)(3.062)(5)

-Result

Volume = 48.08 in³

2.- Use proportions and cross multiplication to find the cost of a serving.

                   48.08 in³ ---------------- $1.99

                         15  in³ ----------------  x

                          x = (15 x 1.99)/48.08

                          x = 29.85/48.08

                          x = $0.62

7 0
3 years ago
Calculate the slope of a line that passes through the points (2, 6) and (4, 2) *
irina [24]

Answer:

-2

Step-by-step explanation:

Given:

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4 years ago
Help me quick what is 5x90
maria [59]
5 x 90 = 450

When you multiply numbers with zeros, you first multiply the numbers and then add the zero(es) at the end. 

5 x 9 = 45
5 x 90 = 450
4 0
4 years ago
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svp [43]

Answer:Its been 5 hours. so 85 - 82 = X. X times 0.6 = 5 then translate to 5 hours.

Step-by-step explanation:

7 0
3 years ago
Andy is designing a dice tray in the shape of a rectangular prism to use during a role-playing game. The tray needs to be three
Dmitry_Shevchenko [17]

Answer:

3x^2 + 15x - 252 = 0

Step-by-step explanation:

The volume of the prism is 252 cubic centimeters.

The volume of a rectangular prism is gotten by the formula:

V = l * w * h

where l = length

w = width

h = height

The height of the prism is 3 cm.

Let x be the width of the prism.

The length of the prism is 5 cm longer than the width.That is:

l = 5 + x

The volume of the prism is therefore:

V = (5 + x) * x * 3

=> 252 = (5x + x^2) * 3\\\\252 = 15x + 3x^2\\\\=> 3x^2 + 15x - 252 = 0

This is the equation that models the volume of the tray in terms of x.

6 0
3 years ago
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