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Elden [556K]
3 years ago
15

Help is needed please

Mathematics
1 answer:
Masja [62]3 years ago
6 0
The answer is 30a-9b+23c
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Solving system by elimination<br> 7x+2y=24<br> 8x+2y=30
icang [17]
7x+2y=24
<span>-8x-2y=-30 (multiplied each side by -1)
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Solve each equation algebraically using if–then statements to justify each step <br><br>2(x + 4) = 8
Alex
This is what Photomath got

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3 years ago
joes family has compleated 60% of a road trip. if they have traveld 30 miles, how far is the full road trip?
Tems11 [23]

The full road trip is 50 miles.

Step-by-step explanation:

Given,

Distance traveled by Joe's family = 30 miles

This represents 60% of the total distance to be traveled.

Let,

x be the total distance.

60% of x = 30

\frac{60}{100}*x=30\\0.6x=30

Dividing both sides by 0.6

\frac{0.6x}{0.6}=\frac{30}{0.6}\\x=50\ miles

The full road trip is 50 miles.

Keywords: percentage, division

Learn more about percentages at:

  • brainly.com/question/3375830
  • brainly.com/question/3398261

#LearnwithBrainly

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We have to find how many purple rectangles does Olivia need for 3 scarves. We know that each scarf will have 5 rectangles and 2/5 of the rectangles will be purple: 2/5 * 5 = 2. It means that each scarf will have 2 purple rectangles. And for 3 scarves : 3 * 2 = 6. Answer: She needs <span>6 purple rectangles.</span>
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3 years ago
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