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Pavel [41]
3 years ago
6

Explain how you can use a basic subtraction fact to help you solve 98-30.

Mathematics
1 answer:
solniwko [45]3 years ago
6 0
You do what I’d 9-3 , 8-0 , then combined it and you will get the right answer
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Dion puts seven tenths of his allowance into savings each month what fraction of his saving doesnt go in
S_A_V [24]

Answer:

\frac{3}{10} of his allowance doesn’t go into Dion’s savings.

Step-by-step explanation:

We know that \frac{7}{10} of Dion’s savings is going into his savings.

Since the denominator is “10” we know that \frac{10}{10} is the fraction that represents all of his allowance money.

So, we would subtract \frac{7}{10} from \frac{10}{10}.

\frac{10}{10} - \frac{7}{10} = \frac{3}{10}

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3 years ago
Where should you endorse a check?
Vesna [10]
You endorse a check by signing your name on the back of the left end of the check. Hope this helps:)
3 0
3 years ago
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Find the mean of the data summarized in the given frequency distribution. Compare the computed mean to the actual mean of 47.3 m
Marta_Voda [28]

Answer:

\bar X = \frac{2276}{48}=47.417

If we compare this value with the 47.3 proposed we have the following error

Error = \frac{|Actual-real|}{real}*100 = \frac{|47.417-47.3|}{47.3}*100 =0.247\%

The computed mean is close to the actual mean because the difference between the means is less than 5%.  

Step-by-step explanation:

Assuming the following dataset:

Speed   42-45  46-49  50-53  54-57  58-61

Freq.         21        15        6           4          2

And we are interested in find the mean, since we have grouped data the formula for the mean is given by:

\bar X = \frac{\sum_{i=1}^n x_i f_i}{\sum_{i=1}^n f_i}

And is useful construct a table like this one:

Speed     Freq    Midpoint   Freq*Midpoint

42-45       21            43.5       913.5

46-49       15            47.5        712.5

50-53       6             51.5         309

54-57        4            55.5         222

58-61        2             59.5        119

Total       48                           2276

And the mean is given by:

\bar X = \frac{2276}{48}=47.417

If we compare this value with the 47.3 proposed we have the following error

Error = \frac{|Actual-real|}{real}*100 = \frac{|47.417-47.3|}{47.3}*100 =0.247\%

The computed mean is close to the actual mean because the difference between the means is less than 5%.  

6 0
3 years ago
Solve for x: A=bx+cw
ozzi

Answer:

The answer is x=A-cw/b.

I need to add more characters so don't worry

8 0
3 years ago
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Hey umm how do you make your stressed mom feel better?
Dafna11 [192]

Answer:

Help her around the house.

Step-by-step explanation:

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2 years ago
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