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Korolek [52]
2 years ago
15

A diagram shows a square with a perimeter of 40cm. Work out the percentage of the area inside the square that is shaded.

Mathematics
2 answers:
scoundrel [369]2 years ago
8 0

Answer:

70%

Step-by-step explanation:

otez555 [7]2 years ago
6 0

Answer:

Step-by-step explanation:

10×10=100

3×10=30

6×10=60

15+30=45

100-45=55

55cm²

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A company produces fruity drinks that contain a percentage of real fruit juice. Drink A contains 20% real fruit juice and Drink
Setler [38]

Answer:

There needs to be 300 liters of Drink A and 270 liters of Drink B

Step-by-step explanation:

Let a = the amount of Drink A and b = the amount of Drink B

Multiplying a number by 0.2 is the same as calculating 20% of it and same goes with 15% and 0.15. This makes our equation for the amount of fruit juice:

0.2a + 0.15b = 100.5

We know what the difference between a and b will be 30 liters so:

a - b = 30

Now we have our system of equations

To cancel out a, we can multiply the first equation by -5 so we will now have:

-a - 0.75b = -502.5

a - b = 30

Adding these two equations together, we get:

-1.75b = -472.5

Both sides are negative, so we can take the negative signs away.

1.75b = 472.5

Now divide both sides by 1.75

b = 270

Plugging 270 into b, we have:

a - b = 30

a - 270 = 30

Add 270 to both sides

a = 300

There needs to be 300 liters of Drink A and 270 liters of Drink B

7 0
2 years ago
Read 3 more answers
Find the value of x <br> A) 6.0<br> B) 7.7<br> C) 60<br> D) 12
galben [10]

Answer:

D 12

Step-by-step explanation:

The product of the lengths of the segments of one chord equal the product of the segments of the other.

x*4 = 6*8

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Divide each side by 4

4x/4 = 48/4

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4 0
3 years ago
FREE BRAINLY AND 50 PTS!! MIGHT BE EASY
Thepotemich [5.8K]
> and = with line through it
8 0
2 years ago
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Marianna [84]
<1 = 123
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4 0
3 years ago
A tennis coach divides her 9-player squad into three 3-player groups with each player in only one group. How many different sets
Roman55 [17]

Answer:

84

9 choose 3

Step-by-step explanation:

8 0
3 years ago
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