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Gnom [1K]
3 years ago
8

How can you use a bar diagram to check the accuracy of the solution to a ratio or rate problem

Mathematics
1 answer:
kramer3 years ago
3 0
Yes bc they always change
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I need help with this!
ruslelena [56]
|12| ÷ 2 • |-5|
= 12 ÷ 2 • 5
= 6 • 5
= 30
Absolute values just make the number positive if it is negative. The number stays positive if it’s positive.
7 0
3 years ago
Triangle S and triangle L are scaled copies of one another,what is the scale factor from S to L
Naddika [18.5K]

The scale factor is 2

L = 2 * S

4 0
3 years ago
Read 2 more answers
Pls help me its so hard
Vladimir79 [104]

X is 5

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6 0
3 years ago
Read 2 more answers
Tim knows the volume and base area of a wooden chest that is in the shape of a rectangular prism. If the volume is 524 cubic uni
Alexandra [31]

Answer: 34.93 units

Step-by-step explanation:

The volume of a rectangular prism can be calculated with this formula:

V=Bh

Where "V" is the volume, "B" is the base area and "h" is the height.

Since we need to find the height, we must solve for "h":

h=\frac{V}{B}

We know that the volume of that wooden chest (which is in the shape of a rectangular prism) is 524 cubic units and the base area is 15 square units. Then:

V=524units^3\\B=15units^2

Subsitituting these values into h=\frac{B}{V}, we get that the height of the chest is:

 h=\frac{524units^3}{15units^2}=34.93units

6 0
3 years ago
Solve the quadratic equation x2 - x = 30 by completing the square
kap26 [50]

Answer:

A

Step-by-step explanation:

Given

x² - x = 30

To complete the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(- \frac{1}{2})x + \frac{1}{4} = 30 + \frac{1}{4}

(x - \frac{1}{2})² = \frac{121}{4}

Take the square root of both sides

x - \frac{1}{2} = ± \sqrt{\frac{121}{4} } = ± \frac{11}{2}

Add \frac{1}{2} to both sides

x = \frac{1}{2} ± \frac{11}{2}, thus

x = \frac{1}{2} - \frac{11}{2} = - 5

x = \frac{1}{2} + \frac{11}{2} = 6

5 0
3 years ago
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