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OleMash [197]
3 years ago
10

What percentage of the blocks is shaded in the picture?

Mathematics
1 answer:
emmasim [6.3K]3 years ago
7 0
Hello! So the blocks are lined up in rows of 8. When you count the number of rows, there are 10 of them. 3 rows of 8 blocks are shaded out of 10 of them. That's 24 blocks shaded out of 80, because 8 * 10 is 80, and 3 * 8 is 24. Let's divide. 24/80 is 0.3.Let's multiply that by 100 to get it in percent form. 0.3 * 100 is 30. There. 30% of blocks are shaded in the picture.
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3 0
3 years ago
What is the general form of the quadratic function ?
Trava [24]
General form of quadratic funtion:

ax² + bx + c
5 0
3 years ago
A van moves with a constant speed of 36 miles per hour How long will it take to travel a distance of 177 miles?​
Temka [501]

9514 1404 393

Answer:

  4 hours 55 minutes

Step-by-step explanation:

Time, speed, and distance are related by ...

  t = d/s

  t = (177 mi)/(36 mi/h) = 4 33/36 h = 4 11/12 h

The fractional part of this time is ...

  11/12 hour is (11/12)(60) = 55 minutes

The van will take 4 hours and 55 minutes to travel a distance of 177 miles.

7 0
2 years ago
Please help, I've never gotten these and I still dont. this test is 95% of my grade​
sweet-ann [11.9K]

Answer:

6

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22

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-13

Step-by-step explanation:

this is how to do it.

4 0
3 years ago
Solve the system using substitution: y + 8x = 10 and 2y - 4x = 40
exis [7]

Answer:

Hence x = -1 and y = 18

<em></em>

Step-by-step explanation:

Given the system of equations

y + 8x = 10... 1

2y - 4x = 40 ... 2

From 1; y = 10-8x

Substitute into 2;

2(10-8x) - 4x = 40

20 - 16x - 4x = 40

20 - 20x = 40

-20x = 40 - 20

-20x = 20

x = -1

Recall that y = 10-8x

y = 10 - 8(-1)

y = 10 + 8

y = 18

Hence x = -1 and y = 18

<em></em>

4 0
3 years ago
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