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ch4aika [34]
3 years ago
9

Gold costs x cents per gram.

Mathematics
1 answer:
amm18123 years ago
3 0
Y/(X•grams), find the total cost of the gold, then use y to divide the whole thing.
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X/a+x/b=1<br>make x the subject of the formular​
monitta

Answer:

x = \frac{ab}{b+a}

Step-by-step explanation:

Given

\frac{x}{a} + \frac{x}{b} = 1

Multiply through by ab to clear the fractions

bx + ax = ab ← factor out x from each term on the left side

x(b + a) = ab ← divide both sides by (b + a)

x = \frac{ab}{b+a}

8 0
3 years ago
The probability that Hank Aaron hits a home run on any given at-bat is 0.14, and
Liula [17]

Answer:

Step-by-step explanation:

3 0
3 years ago
Marcus, Shaun, and Tristan each invested into new business. They invested 1 point
Schach [20]

Shaun invested $176,250 into the new business.

Marcus invested half of the $940,000 so the amount that Shaun and Tristan invested is:

= 940,000 / 2

= $470,000

Shaun and Tristan invested in the ratio 3:5.

The amount that Shaun invested is:

<em>= (Ratio of Shaun / Sum of the ratios) x Amount both invested </em>

= (3 / (3 + 5 )) x 470,000

= 3/8 x 470,000

= $176,250

In conclusion, Shaun must have invested $176,250 into the business.

<em>Find out more at brainly.com/question/771006.</em>

4 0
3 years ago
-0.75 is it rational or irrational
Mademuasel [1]

-0.75 is a rational number because it can be expressed as the fraction -3/4 and it is an integer

6 0
3 years ago
Read 2 more answers
Peter is 13 years old peters father is 6 years more than twice her age. how old is Peter's father​
ZanzabumX [31]

Answer:

32 years old.

Step-by-step explanation:

13 times 2 is 26, and 6 added to 26 is 32.

I hope this helps, have a nice day.

4 0
3 years ago
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