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Dmitrij [34]
4 years ago
13

Which expresion is equivalent to 30(1/2x-2)+40(3/4y-4)

Mathematics
1 answer:
Dafna11 [192]4 years ago
6 0

Answer:

15x +30y -220

steps:

30(1/2x-2)+40(3/4y-4)

= 15x-60 +30y-160

= 15x +30y -220

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Answer this question correctly and get a FREE BRAINLY AND POINTS (Difficulty: Algebra?) ...
Zepler [3.9K]

Answer:

-14400

Step-by-step explanation:

6/2 (-75*4³)=-14400

4³=64

6/2(-75*64)

6/2(-4800)

3(-4800)=-14400

8 0
3 years ago
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What step should you do before you write an equation to solve a word problem? 20 points
ra1l [238]

Answer:

Hewo! :3

A nice trick i use for word problems is that i highlight the numbers and what they are, like: liters, kilograms, grams, etc. say this is your word probem:

Suzie made <u>30 kilograms</u> of party mix chips and <u>40 liters of punch</u> for her party, Suzie had <u>20 people at her party</u>, how much punch and party mix chips will there be when the party is over?

I highlighted what i would have highlighted if it was a real word problem.

Good luck! Hope my trick works for you too!

8 0
3 years ago
Help please I have to get this finished
vodomira [7]

Answer:

The answer is c. Hope this helped!

Step-by-step explanation:

8 0
2 years ago
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An inverse variation includes the points (15,1) and (n,5). Find n
djyliett [7]
Inverse variation: y=k/x

1. plug in the values: (15,1)
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2. solve for k

3. Now, plug in what you can for the second point: (n,5)
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7 0
2 years ago
A=1/2 h(x+y) make x the subject
insens350 [35]

Answer:

Step-by-step explanation:

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