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Nutka1998 [239]
2 years ago
8

MATH if someone can please help that would be amazing thank you!

Mathematics
1 answer:
White raven [17]2 years ago
5 0
223,200,000 should be correct
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Solve for x<br> -2/5x - 8/15x + 1/3x = -54<br> x=?
Ad libitum [116K]

Answer:

x=0

Step-by-step explanation:

solve for  x  by simplifying both sides of the equation, then isolating the variable. which got me x=0

3 0
3 years ago
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Original price: $35<br> Percent of discount:<br> Sale price: $31.50
AlladinOne [14]

Answer:

ok i agree

Step-by-step explanation:

6 0
3 years ago
The distribution of income tax refunds follow an approximate normal distribution with a mean of $7010 and a standard deviation o
Andrej [43]

Answer:

A refund must be above $7,139 before it is audited.

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

Approximately 68% of the measures are within 1 standard deviation of the mean.

Approximately 95% of the measures are within 2 standard deviations of the mean.

Approximately 99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean = 7010, standard deviation = 43.

Approximately 99.7% of the measures are within 3 standard deviations of the mean.

The empirical rule is symmetric, which means that the lowest (100-99.7)/2 = 0.15% is at least 3 standard deviations below the mean, and the upper 0.15% is at least 3 standard deviations above the mean.

Use the Empirical Rule to determine approximately above what dollar value must a refund be before it is audited.

3 standard deviations above the mean, so:

7010 + 3*43 = 7139.

A refund must be above $7,139 before it is audited.

5 0
3 years ago
A candy store in the mall orders 1000 boxes a month each box of candy weighs 45.9 grams . What is the total weight in grams of t
Degger [83]

Answer:

45900 grams

Step-by-step explanation:

All you need to do is multiply 45.9 grams by 1000 for the total combined weight of every box combined to get.

45.9 x 1000 = 45900

4 0
3 years ago
What is the hydronium ion (H3O+) concentration in milk if it has a pH of 8.2?
valkas [14]
The hydronium ion is H₃O⁺ and its concentration is equivalent to the H⁺ ion concentration. The H⁺ ion concentration is given by:

pH = -log[H⁺]
[H⁺] = 10^(-8.2)
[H⁺] = 6.31 x 10⁻⁹ mole/dm³

The hydronium ion concentration is 6.31 x 10⁻⁹ mole/dm³
5 0
3 years ago
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