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Pachacha [2.7K]
3 years ago
11

Classify this expression

Mathematics
1 answer:
lyudmila [28]3 years ago
8 0

Answer:

8.

8. - 1. - 44

9

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Pure copper was mixed with a 10% copper alloy to produce an alloy thát was 25% copper. How much of the pure copper and how much
lora16 [44]

Answer:

6kg pure copper and 30 kg 10% copper was mixed to give 36kg of 25% alloy

Step-by-step explanation:

Here, we want to produce 36 kg of 25% alloy

Let the Pure copper be x kg while 10% alloy be y kg

Pure copper is simply 100% copper

Thus;

x + y = 36 •••••(i)

Then;

100% of x + 10% of y = 25% of 36

= x + 0.1y = 9 •••••• ii)

From i x = 36-y

from ii, x = 9-0.1y

Equate both x

36-y = 9-0.1y

36-9 = 0.1y + y

0.9y = 27

y = 27/0.9

y = 30

x = 36-y

x = 36-30

x = 6 kg

8 0
2 years ago
Plz help me show the work plz
Neporo4naja [7]

Answer:

all work is shown and pictured

6 0
3 years ago
HElppppp pleaseee......
LiRa [457]

Answer: \sqrt[4]{xy^{2} }

Step-by-step explanation: Siplified

6 0
2 years ago
Write the standard form of the line that passes through the given points. (7, -3) and (4,-8)
Mama L [17]

The line equation is given by

y=mx+b

where <em>m </em>is the slope and <em>b </em>is the interception with <em>Y-axis</em>

3 0
1 year ago
Please Answer. No links.
Verizon [17]

Answer:

The answers I have come are as follows.

-26

-14

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16

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2 years ago
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