3 years ago

Twice the difference of a number and 8 is equal to three times the sum of the number and 7. Find the number.

Mathematics

1 answer:

Vikentia [17]3 years ago

8 0

Answer:

The number is -37.

Step-by-step explanation:

2(x - 8) = 3(x + 7)

2x - 16 = 3x + 21

x = -37

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Anastaziya [24]

Answer:

Step-by-step explanation:

Any solution x will mod 23 will also have x+23n as a solution, for some integer n. Since 900/23 = 39 3/23, we know there are 39 or 40 three-digit integers of this form.

As it happens, 100 is the smallest 3-digit solution. So, there are 40 three-digit numbers that are of the form 100 +23n, hence 40 solutions to the equation.

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Its solutions are x = 23n +8.

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3 years ago

Greater than 7 tens and less than 8 tens. The number has 4 ones

prohojiy [21]

Answer is 74. Greater than 70 less than 80 so some where in the 70s. It has 4 ones so it would be 74.

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3 years ago

Morre Math HARDDDDDDDD

Dafna11 [192]

Answer:

the person above is right it's 4.5 units

give them the crown

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2 years ago

(3^2 + 9x + 6) − (8^2 + 3x − 10) + (2x + 4)(3x − 7)

inna [77]

(12+9x) - (6+3x) + 6x + -3
6+3x + 6x+-3
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3 years ago

A cylindrical well has a radius of 8 feet and a height of 13 feet what is the volume of the well use 3.14 for pie round your ans

vitfil [10]

To find the volume of a cylinder, you use this formula:
V = $\pi$ $r^{2}$ h

Plug in your numbers,
V = (3.14 * $8^{2}$ ) * 13

Exponents:
V = (3.14 * 64) * 13

Parentheses:
V = 200.96 * 13

Multiply:
V = $2612.48ft^{2}$

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3 years ago