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professor190 [17]
3 years ago
11

A gold alloy contains 15 milligrams of gold for every 4 milligrams of copper. A jeweler uses 48 milligrams of copper to make the

alloy. How much gold does the jeweler use to make the alloy?
How many milligrams?
Mathematics
1 answer:
Rzqust [24]3 years ago
7 0

Answer:

180 milligrams of gold

Step-by-step explanation:

1.)48 / 4=12

2.)12*15=180

Hope this answers your question

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Please help!! What is 6(4 - y) = 5 + 3?
Archy [21]

Answer:

<h3>\boxed{ \boxed{ \bold{ \sf{2.6}}}}</h3>

Step-by-step explanation:

\sf{6(4 - y) = 5 + 3}

Distribute 6 through the parentheses

\sf{24 - 6y = 5 + 3}

Add the numbers

\sf{24 - 6y = 8}

Move constant to right hand side and change it's sign

\sf{ - 6y = 8 - 24}

Calculate

\sf{ - 6y =  - 16}

Divide both sides of the equation by -6

\sf{ \frac{ - 6y}{ - 6}  =  \frac{ - 16}{ - 6} }

Calculate

\sf{y = 2.6}

Hope I helped!

Best regards!!

7 0
3 years ago
Read 2 more answers
Mason and Nora decided to swim across the river. Mason began swimming 7.7 seconds earlier than Nora. Mason swam at a speed of 5
user100 [1]
Let d be distance travelled when they are level , and t = time that nora took to get level with mason for Nora 6 = d/t d = 6t for Mason 5 = d / (t + 35) d = 5 ( t + 350 so 6t = 5(t + 35) solve for t
7 0
3 years ago
Find the rule. Solve for n.
kakasveta [241]
I think 42 but Im not sure just thought it out.
7 0
4 years ago
Read 2 more answers
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bulgar [2K]

Answer:

The answer is c. 6

Step-by-step explanation:

8+40=48

2x2x2=8

48/8=6

4 0
3 years ago
Read 2 more answers
The sales tax rate is 8.75% and the sales tax is $15.75, what is the purchase price? (Round to the nearest cent.)
ivann1987 [24]
X= purchase price


Multiply purchase price by sales tax % to equal the amount of sales tax.

(8.75% * x)= $15.75
convert % to decimal (8.75% ÷ 100)

0.0875x= 15.75
divide both sides by 0.0875

x= $180.00 purchase price


ANSWER: The purchase price is $180.00 (to nearest cent).

Hope this helps! :)
4 0
3 years ago
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