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Svet_ta [14]
3 years ago
15

Help please. How to calculate it? That is the answer of last one ?

Mathematics
1 answer:
Alenkinab [10]3 years ago
6 0

Answer:

60

Step-by-step explanation:

Shoes= 10

Human= 5

Cone= 4

10+5= 15 x 4= 60

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Consider the following simplified algebraic expression. Which could be the original expression?
dem82 [27]

You have to simplify each equation. You can do that by adding similar values to each other:

(the first equation)

8x²y + 7x² - 5y² + 3x - 2 + 2x²y - x² -  2y² + 3x - 4

To make it easier, arrange the values around so that similar ones are beside each other:

8x²y + 2x²y + 7x² - x² - 5y² - 2y² + 3x + 3x - 2 - 4

then add the similar values together:

8x²y + 2x²y = 10x²y

7x² - x² = 6x²

- 5y² - 2y² = -7y²

3x + 3x = 6x

(- 2)+ (- 4) = -6

and if you put them together:

10x²y + 6x² - 7y² + 6x - 6

This isn't the answer to the equation, because it's different. So repeat the process with all the other equations until you find one that is identical to the simplified version.

The answer is the second one: 8x²y + 7x² - 5y² + 3x - 2 + 2x²y - x² -  2y² - 3x - 4

6 0
3 years ago
Read 2 more answers
I don’t feel like typing it out but can you guys help me on this one
lara31 [8.8K]

the answer is 4%

Hope this helps!

3 0
3 years ago
Read 2 more answers
So,i have the answer to this question,but i have no clue how to work it out,ik im not that smart but anyways i need helppo
mestny [16]

Answer:

1290 =  \frac{h}{10}  + \frac{h}{5} \\ 12900 = h + 2h \\ 3h = 12900 \\ h = 4300

7 0
3 years ago
0.9 (13) - 1.7 (3) =
marissa [1.9K]

Answer:

6.6

Step-by-step explanation:

8 0
3 years ago
Anna is reading a 300-page book. She can read a page in two minutes. If she has finished reading 75 percent of the pages, how ma
Daniel [21]

Answer:

150 minutes

Step-by-step explanation:

If Anna read 75% of her 300-page book, then she has already read:

300 × 75%

= 300×0.75

= 225

225 pages.

If Anna has already read 225 pages, then she has:

300 - 225 = 75

75 pages left still to read.

If Anna reads 2 minutes per page, then she has

75 × 2 = 150 minutes.

She has 150 minutes of reading left to finish her book.

By the way, it's weird to say you have 150 minutes of something to do. In real life 150 minutes = 2 1/2 hours. jfyi. Have a great day!

3 0
1 year ago
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