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Natali [406]
2 years ago
7

it takes 40 minutes for 8 people to paint 4 walls how many minutes would it take 10 people to paint 7 walls

Mathematics
1 answer:
Alex Ar [27]2 years ago
5 0

Answer: 70 minutes


Step-by-step explanation:

Each person takes 5 minutes to do half a wall and another person will take 10 minutes. So it will be 70 minutes


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In a basketball game, a regular basket was worth 2 points and a long-distance basket was worth 3 points. if there were 45 basket
IgorLugansk [536]
Let
 x: number of regular basketball
 y: number of long-distance basket
 We have the following system of equations:
 2x + 3y = 96
 x + y = 45
 Solving the system we have
 y = 45-x
 2x + 3 (45-x) = 96
 2x +135 -3x = 96
 -x = 96 -135
 x = 39
 Then,
 y = 45-x
 y = 45-39
 y = 6
 answer
 were made
 regular baskets = 39
 long-distance baskets = 6
3 0
3 years ago
Find the surface area of the pyramid. The side lengths of the base are equal. Square pyramid with base edge of 12 centimeters, a
sdas [7]

Answer:

the surface area of the square pyramid is 576.66 cm^2

Step-by-step explanation:

The computation of the surface area of square pyramid is given below:

A = a^2  + 2a × √a^2 ÷ √4 + √h^2

where

a = 12 cm

h = 17 cm

Now put the value of a and h in the above formula

= 12^2 + 2(12) × √12^2 ÷ √4 + √17^2

= 576.66 cm^2

hence, the surface area of the square pyramid is 576.66 cm^2

8 0
2 years ago
A certain number added to its square is 30. Find the number
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X+x²=30
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5 0
3 years ago
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AB + C
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3 years ago
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vladimir2022 [97]

y =  \frac{1}{2} x + 1
4 0
2 years ago
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