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3 years ago

Negative 9 minus negative 10

Mathematics

2 answers:

antoniya [11.8K]3 years ago

4 0

1 is your answer -+- is a positive

kirill115 [55]3 years ago

3 0

You have -9 -(-10). So when you have a subtraction symbol next to a negative, just like this problem. You will then have a positive 10.

So...
Negative and a Positive make a [Negative]
Positive and a Negative make a [Negative]
Positive and a Positive make a [Positive]
Negative Negative make a [Positive]

Then you add -9 and 10. You go closer to the 0. Then you have 1.

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A coin jar contains 10 quarters, 6 dimes, and 8 nickels. Find the probability that a dime is chosen at random from the jar and t

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Answer: 6 to 24

Step-by-step explanation:

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4 years ago

If one side is 5 and the others is 12 of a triangle with an 90° angle what is X

Taya2010 [7]

Answer:

x= 13

Step-by-step explanation:

12²+5²

=169

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3 years ago

A random sample of 10 observations was selected from a normal population distribution. The sample mean and sample standard devia

Delvig [45]

Answer:

18.0167≤x≤21.9833

Step-by-step explanation:

Given the following

sample size n = 10

standard deviation s = 3.2

Sample mean = 20

z-score at 95% = 1.96

Confidence Interval = x ± z×s/√n

Confidence Interval = 20 ± 1.96×3.2/√10

Confidence Interval = 20 ± (1.96×3.2/3.16)

Confidence Interval = 20 ± (1.96×1.0119)

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CI = {20-1.9833, 20+1.9833}

CI = {18.0167, 21.9833}

Hence the required confidence interval is 18.0167≤x≤21.9833

8 0

3 years ago

If i have a pay rate of $21.00 and marked up 78.7% and made a 10% profit. how did i get $41.28?

Virty [35]

Step-by-step explanation:

Since we have given that

Amount of pay rate =$21

If she marked up by 78.7% , so it becomes

$78.7\%\text{ of}\$21\\\\=\frac{78.7}{100}\times \$21\\\\=\$16.527$

So, our amount for pay rate becomes

$21+16.527\\\\=\$37.527$

Now, he said he made a profit of 10%,so it becomes

$10\%\text{ of }37.527\\\\=\frac{10}{100}\times 32.527\\\\=\$3.7527$

So, our new pay rate becomes

$37.527+3.7527\\\\=\$41.2797$

This is the step through which we can get $41.28.

4 0

3 years ago

If the total selling price is $1.207.74 with a state tax of 796 and city tax of 1.5\% , what is the total sales tax.

Ivanshal [37]

Answer:

$814.12

Step-by-step explanation:

1.5% of the selling price of 1,207.74 is added on to the state tax of $796. We have to find out the total sales tax of the city and state taxes combined.

1207.74 * .015 = 18.1161 (rounded to 18.12)

18.12 + 796 = 814.12

7 0

4 years ago