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Vesnalui [34]
2 years ago
10

The sum of a number times 10 and 17 is at most 27

Mathematics
1 answer:
guajiro [1.7K]2 years ago
5 0

<em>Answer:</em>

<em>The value of the number should be 1 (or less I think)</em>

<em>Step-by-step explanation:</em>

<em>At most means the highest value of the sum should be 27.</em>

<em>10x + 17 = 27</em>

<em>10x = 27 - 17</em>

<em>10x = 10</em>

<em>x = 10/10</em>

<em>x = 1</em>

<em>∴</em><em>The value of the number should be 1</em>

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The total cost of painting of four walls of a square hall at Rs. 40 per sq. m. is Rs. 12000. If the hall contains 600 m³ of air,
astra-53 [7]

Answer:

The height of the hall is 9.375 meters

Step-by-step explanation:

The rate at which the walls of the square hall are painted, R = Rs. 40 per sq. m.

The total cost of painting the square hall, C = Rs. 12,000

The volume of air contained in the hall, V = 600 m³

The surface area of the four walls of the hall, A = C/A

∴ A = Rs. 12,000/(Rs. 40/m²) = 300 m²

Let 's' represent the length of sides of the square hall, and let 'h' represent the height of the square wall, we have;

The volume of the hall, V = s² × h

The surface area of the wall, A = 4 × s × h

Therefore, we get;

A = 300 = 4 × s × h

V = 600 = s² × h

V/A = 600/300 = 2 = s² × h/(4 × s × h) = s/4

s/4 = 2

s = 4 × 2 = 8

The side length of the square hall, s = 8 m.

From the area, A = 4 × s × h, we get;

A = 300 = 4 × 8 × h

h = 300/(4 × 8) = 9.375

The height of the hall, h = 9.375 m.

8 0
3 years ago
A pair of jeans costs $40 and sales tax is 5%?<br>how much is the total bill?
spin [16.1K]
42$ because 10 % is 4 dollars so that 5% cut that 4 in half witch made it 2
5 0
3 years ago
Read 2 more answers
55% of what number is 231
babunello [35]
.55*X=231 .....X=231/.55.......X= 420
4 0
3 years ago
What is the answer x+5&gt;23
olga2289 [7]
18<x is the answer you are looking for. Glad to help.
3 0
3 years ago
Find the value of ‘k’ if one zero of p(x) = kx2<br> – 14 x + 8 is 6 times the other.
Finger [1]

Answer:

<u>k = 3</u>

Step-by-step explanation:

one zero of p(x) = kx²– 14 x + 8 is 6 times the other.

let the zeros are ⇒ a and 6a

the equation kx²– 14 x + 8

can be written as k ( x²/k– 14/k x + 8/k)

So, a * 6a = 8/k    ⇒ (1)

And a + 6a = 14/k ⇒ (2)

from (2)  k = 14/(a + 6a) = 14/(7a) = 2/a

∴ a = 2/k

Substitute at (1)

a * 6a = 8/k

2/k * 12/k = 8/k

solve for k

24/k = 8

k = 24/8 = 3

<u>the value of k = 3</u>

And the zeros will be 2/3 and 4

5 0
2 years ago
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