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SCORPION-xisa [38]
3 years ago
13

What's the answer to this problem: 3 3/4m - 2n + 1/4n - 4 = ?

Mathematics
1 answer:
stepladder [879]3 years ago
5 0

3/4m - 2n + 1/4n - 4=

combine like terms

3/4 m+( -2n + 1/4 n) -4=

3/4 m -1 3/4 n -4

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Simplify the following expression: (x + 6y) − (3x − 10y). If the final answer is written in the form Ax + By, what is the value
Ksju [112]

-2

becasue we

-2x-4y

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7 0
3 years ago
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5 | 9 - 5n|-7 = 38<br> I need helppp.
DerKrebs [107]

Answer:

I got 0 or 18/5

Step-by-step explanation:

8 0
3 years ago
The coffee Lily likes is composed of 97.3% water and 2.7% cocoa. The coffee John likes is composed of 96% water and 4% cocoa. Ho
mestny [16]

30 ounces of the coffee John likes consists of

  • 0.96\cdot30=28.8 ounces of water
  • 0.04\cdot30=1.2 ounces of cocoa

To this mixture we're adding x ounces of water, so that the new mix has a total volume of 30+x ounces and matches the composition of the coffee Lily likes. This means it would consist of

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Solve for x:

0.973(30+x)=28.8+x\implies29.12+0.973x=28.8+x

\implies0.39=0.027x

\implies x\approx14.4

###

Just to confirm: the new mixture consists of

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  • 1.2+0=1.2 ounces of cocoa

giving a total volume of 43.2+1.2=44.4 ounces of coffee, and \dfrac{43.2}{44.4}\approx0.973, as required.

4 0
4 years ago
The weight, w, of a spring in pounds is given by 0.9 times the square root of the energy, E, stored by the spring in joules. If
alex41 [277]

Answer:

B) w\approx3.12 pounds

Step-by-step explanation:

w=0.9\sqrt{E}

w=0.9\sqrt{12}

w\approx3.12

6 0
2 years ago
Pls help I’ll brainlest ASAP
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Substract by 12 from 42, and keep going down until you hit -54, which is 8 hours!
4 0
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