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3 years ago

How do we know if values in a table are proportional?

Mathematics

1 answer:

saw5 [17]3 years ago

8 0

Answer:

To see if multiple ratios are proportional, you can write them as fractions, reduce them and compare them. If the reduced scores are all the same, you have a proportion.

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A pair of shoes costs $30.99 and the state sales tax is 5%. Use the formula C = p + rp to find the total cost of the shoes, wher

liberstina [14]

First, write the rate as a decimal by moving the decimal point two places to the left from the percent.

r = 5% = 0.05

C = p + rp

C = 30.99 + 0.05 * 30.99

C = 30.99 + 1.55

C = 32.54

Answer: The total cost is $32.54

5 0

3 years ago

3 is greater than x, and -2 is less than x sex only once in your inequality.

VladimirAG [237]

Answer:

$-2$

Step-by-step explanation:

Question:

3 is greater than x, and -2 is less than x

Use x only once in your inequality.

Solution:

Given inequalities:

3 is greater than $x$ is represented as $3>x$

-2 is less than $x$ is represented as $-2$

In order to write the compound inequality we put $x$ in the middle and set up the inequalities as per the constraints.

Thus, the compound inequality can be given as:

$-2$

Thus, by using $x$ only once we can represent the given inequities.

3 0

4 years ago

Identify the form of the equation –3x – y = –2. To graph the equation, would you use the given form or change to another form? E

Leviafan [203]

You would want to change it to slope intercept form which is y = -3x + 2
putting it in the form you can quickly see that 2 is the y-intercept, which is where it crosses the y axis when the x value is 0. You can also see than your slope is negative so your line will be going down. Also, you can tell the slope of the line (rise over run)

6 0

3 years ago

Which number is the least?? A. 0 B. -4 c. -2 D. 4

jonny [76]

Answer: B -4

Step-by-step explanation:

6 0

3 years ago

Can somebody answer this? thankyu

kvasek [131]

Answer:

1. 3, 12, 48, 192, 768 Ratio: x4

2. 8, 16, 32, 64, 128 Ratio: x2

3. 120, 60, 30, 15, 7.5 Ratio: ÷2

4. 5, 10, 20, 40, 80, 160 Ratio: x2

5. 1.3?, 4, 12, 36, 108, 324 Ratio: x3

Hope this helps!

I'm not sure about the first one on question 5 though.

8 0

3 years ago