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postnew [5]
3 years ago
13

One-half a number minus 6 is 4. what is the number​

Mathematics
1 answer:
tatyana61 [14]3 years ago
8 0

Answer:

the answer is 20

Step-by-step explanation:

20/2= 10. 10-6= 4.

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A right triangle has legs of lengths 6 and 15 inches. Find the length of the hypotenuse (nearest tenth).​
zubka84 [21]

Answer:

The length of the hypotenuse is 16.2 inches.

Step-by-step explanation:

c^{2} = a^{2} + b^{2}

c^{2} = 6^{2} + 15^{2}

c^{2} = 36 + 225

c^{2} = 261

\sqrt{c^{2} } = \sqrt{261}

c = 16.2

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An equation that involves a multiplication addition, contains a variable, and has a solution of 8.
yulyashka [42]
A variable is an unknown like x so 

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then we subtract (because you must add to reverse subtraction)
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7 0
3 years ago
What is two filths plus one eighth
pantera1 [17]

Answer: 21/40

Step-by-step explanation:

25+18=?The fractions have unlike denominators. First, find the Least Common Denominator and rewrite the fractions with the common denominator.

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Multiply both the numerator and denominator of each fraction by the number that makes its denominator equal the LCD. This is basically multiplying each fraction by 1.

(25×88)+(18×55)=?

Complete the multiplication and the equation becomes

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The two fractions now have like denominators so you can add the numerators.

Then:

16+540=2140

This fraction cannot be reduced.

Therefore:

25+18=2140

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Step-by-step explanation:

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