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kicyunya [14]
2 years ago
11

HURRY PLS i’ll give brainliest please help thanks :)

Mathematics
1 answer:
lianna [129]2 years ago
5 0

Answer:

67°F

Step-by-step explanation:

The mean is another way to say average.

To find the average: you have to add up all of the temperatures, then divide by how many numbers (in this case, time slots) are there.

58°F + 60°F + 61°F + 67°F + 69°F + 73°F + 74°F + 74°F = 536°F

536°F ÷ 8 (total number of time slots) = 67°F

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The average cost of 3 books 3:2:5 is $50. How much does each book cost?
Nina [5.8K]

Step-by-step explanation:

We have to find what one share is

we have 3 shares + 2 shares + 5 shares

so he have a total of 10 shares

next, we divide 50 by total shares to get what one share is

50 ÷ 10 = 5

5 is one share

fins what each is

for 3

3 shares so 3 fives

3 × 5 = 15

for 2

2 shares so 2 fives

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2 years ago
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damaskus [11]
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4 0
3 years ago
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The second side of a triangle is 4cm longer than the first, The third side is 1 less than twice the first, The perimeter is 55cm
lisov135 [29]

Answer:

13 , 17 and 25 cm.

Step-by-step explanation:

Let the length of the first side be x cm.

Then the second is x+4 and the third is  2x-1 cm long.

As the perimeter = 55 cm we have the equation:

x + x + 4 + 2x - 1 = 55

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x = 13 cm.

7 0
2 years ago
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GrogVix [38]
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2 years ago
What is the simplified form of this expression?
Alexxx [7]

Answer:

Option 4

Step-by-step explanation:

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Combining like terms

=> -3x^2+4x^2+2x+5x-4+9

=> x^2+7x+5

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2 years ago
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