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alexdok [17]
3 years ago
15

Solve for m. m/9 +16 <17

Mathematics
1 answer:
-Dominant- [34]3 years ago
5 0
Any negative number
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30% of 40% is equal to 20% of what?
ICE Princess25 [194]
I think its the answer is 10%
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3 years ago
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
Solve the equation 23(9+x)=−5(4−x).
NemiM [27]

Answer:

x= -\frac{277}{18}

Step-by-step explanation:

7 0
2 years ago
find the three consecutive odd integers such that the sum of twice the first and three times the second is 67 more than twice th
Elenna [48]

Answer:

  23, 25, 27

Step-by-step explanation:

It can be convenient to work "consecutive integer" problems by using a variable to represent the middle one.

__

<h3>setup</h3>

Let x represent the middle integer. Then (x-2) is the first of the three odd integers, and (x+2) is the third. The given relation is ...

  2(x -2) +3x = 67 +2(x +2)

<h3>solution</h3>

  5x -4 = 2x +71 . . . . . simplify

  3x = 75 . . . . . . . . add 4-2x

  x = 25 . . . . . . . divide by 3

The three integers are 23, 25, 27.

4 0
2 years ago
2/5 of 1 meter=____cm<br> Plz help thx
Crazy boy [7]

Answer:

40 cm

Explanation:

2/5 = 0.4

1 meter = 100 cm

so,

100 x 0.4= 40 cm

4 0
3 years ago
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