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Alex777 [14]
2 years ago
15

Please help me please

Mathematics
1 answer:
oksano4ka [1.4K]2 years ago
8 0

Answer:

See below.

Step-by-step explanation:

1. 3 * 15 + 4 * 15 - 5 * 15

45 + 60 - 75

105 - 75

30

2. 3x + 4x - 5x

7x - 5x

2x

3. 3(x-2) + 4(x-2) - 5(x-2)

3x - 6 + 4x - 8 - 5x + 10

2x - 4

4. (I'm not typing that out)

7.5x + 19.5 + 10x + 26 - 12.5x - 32.5

5x+13

-hope it helps

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At Dubai metro station, in a week 320 trains arrived. Out of these 5% arrived early and 15% arrived late. How many arrived on ti
dybincka [34]

<u><em>The </em></u><u><em>number of trains</em></u><u><em> that arrived Dubai metro station on time is; 272 trains. </em></u>

<u><em /></u>

  • We are told that 320 trains arrived the Dubai metro station in a week.

  • Now, we are told that 5% got there early and 15% got there late.

This means, the percentage that got there on time is;

100% - % of trains that got there late.

  • Therefore, percentage of trains that got there on time is;

100% - 15% = 85%

  • Since 85% of the trains got there on time, then number of trains that got there on time is;

85% × 320 = 272

  • Therefore, we can conclude that 272 trains arrived on time.

Read more at; brainly.in/question/33336249

4 0
2 years ago
Maya starts with $300 in her bank account. Each month she spends $40. What is the slope in this equation , and what is the y- in
Neporo4naja [7]

Answer: y=<em>300</em>-40x

The <em>y-intercept</em> would be 300

The slope would be -40

Step-by-step explanation:

x=number of months

300 is the amount she starts with

Equation can also be written like so;  y=-40x+300 just like in y=mx+b (slope intercept) form

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Which of the following situations can be described by the equation 2x – 4 = 10?
chubhunter [2.5K]

Step-by-step explanation:

Add 44 to both sides.

2x=10+4

2x=10+4

2 Simplify 10+410+4 to 1414.

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3 Divide both sides by 22.

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3 years ago
What is the value of the expression? 1500÷50
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Step-by-step explanation:

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