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kow [346]
2 years ago
7

What is the easiest way to re learn ratios

Mathematics
1 answer:
enot [183]2 years ago
3 0

Answer:

Step-by-step explanation:

Ratios are no different from fractions. They are "comparisons" of 2 or more things. Instead of fraction bars, they use colons to separate 2 different things.

For example:

\frac{1}{2}=1:2

Now, let's do an example problem.

Ex: find the ratio of 5 cats to every dog.

We are comparing 5 cats to every 1 dog, so the ratio is:

5:1

Don't make thing more complicated to yourself, and don't overthink it. They are exactly like fractions. So treat them as such!

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4x-8y=-26 9x+4y=13 <br> Stuck on my math homework again
Svetllana [295]

Answer:

x = 0, y = 13/4

Step-by-step explanation:

I used elimination to solve the system of equations, but it might be easier to use substitution.

Anyway, hope this helps.

6 0
3 years ago
The value of the function g(x) is –2 when x = -5 and is 5.7 when x = 6. What is
lara31 [8.8K]

Answer:  the equation of function g(x) is y=0.7 x+ 1.5

Step-by-step explanation: The value of the function g(x) is −2 when x=−5. It means the graph of function passes through (-5,-2).

The value of the function g(x) is 5.7 when x=6. It means the graph of function passes through (6,5.7).

The equation of function g(x) that passes through (-5,-2) and (6,5.7) is

5 0
2 years ago
In 2010, the average duration of long-distance telephone calls originating in one town was 9.4 minutes. A long-distance telephon
Zepler [3.9K]

<u>Answer</u>: No, we do not have sufficient evidence to conclude that the mean call duration, µ, is different from the 2010 mean of 9.4 minutes.

Step-by-step explanation:

As per given , we have

H_0: \mu=9.4\\\\H_a:\mu\neq9.4, since H_0 is two-tailed so , the test is a two tail test.

Since population standard deviation is unknown, so we use t-test.

Critical value (two-tailed) for significance level of 0.01= t_{n-1,\alpha/2}=t_{49, 0.005}\pm2.609228

For n =50 , \overline{x}=8.6 and s= 4.8

Test statistic : t=\dfrac{\overline{x}-\mu}{\dfrac{s}{\sqrt{n}}}

t=\dfrac{8.6-9.4}{\dfrac{4.8}{\sqrt{50}}}\approx-1.18

Since test statistic value (-1.18) lies in critical interval (-2.609228, 2.609228), it means the null hypothesis is failed to reject.

We do not have sufficient evidence to conclude that the mean call duration, µ, is different from the 2010 mean of 9.4 minutes.

4 0
3 years ago
<img src="https://tex.z-dn.net/?f=9%20%20%5Ctimes%20%20%5Cfrac%7B3%7D%7B4%7D%2012" id="TexFormula1" title="9 \times \frac{3}{4
kow [346]

9 \times 3 \times \frac{12}{4}  = 9 \times 3 \times 3 = 81

7 0
2 years ago
Read 2 more answers
Please help me answer this question
SOVA2 [1]
Well knowing that it’s 5 1/4 and the cost of paint is 13.99, I’m going to assume to multiply by the given product which is 13.99 by one quarter (which is 25)
8 0
3 years ago
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