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tresset_1 [31]
2 years ago
15

11) 8(1 + 3x) = -x + 3(8x + 3) Pls help urgent

Mathematics
1 answer:
yuradex [85]2 years ago
6 0

Answer:

x=1

Step-by-step explanation:

8+24x=-x+24x+9

24x-24x+x=9-8

x=9-8

x=1

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The sum of the masses of two heavyweight boxers is 190kg. ⅘ the heavier boxer is 10kg less than the mass of lighter boxer. Find
ratelena [41]

Answer:

<em>Their masses are 100 kg and 90 kg</em>

Step-by-step explanation:

<u>Equations</u>

We'll solve the problem by setting only one variable. Let's call:

x = weight of the heavier boxer

Since the sum of the masses of both boxers is 190 Kg:

190 - x = mass of the lighter boxer.

It's given that \frac{4}{5} of the mass of the heavier boxer is 10 kg less than the mass of the other, thus:

\displaystyle \frac{4}{5}x=190-x-10

Operating:

\displaystyle \frac{4}{5}x=180-x

Multiplying by 5:

\displaystyle 4x=5(180-x)

\displaystyle 4x=5*180-5x

Simplifying:

\displaystyle 9x=900

x=\frac{900}{9}=100

The heavier boxer's mass is 100 kg. The lighter boxer has a mass of 190-100 = 90 kg.

Their masses are 100 kg and 90 kg

5 0
3 years ago
How do you solve -10 = 8 + v ​
babunello [35]

Answer: -18=v

Step-by-step explanation: You subtract 8 from both sides. -10-8=-18 which will equal to v.

6 0
4 years ago
Read 2 more answers
True or false: sometimes, a quadratic expression cannot be factored.
lyudmila [28]

Answer:

true

Step-by-step explanation:

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3 years ago
Solve for x! , Please answer!!
tatuchka [14]

Answer:

Value of x = -7

Step-by-step explanation:

Given:

First angle = 83°

Second angle = 24°

Third angle = (38 - 5x)°

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Computation:

We know that sum of all interior angle in triangle is 180°

So,

83 + 24 + 38 - 5x = 180

145 - 5x = 180

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Value of x = -7

7 0
3 years ago
When would there be only four different equations for a set of math mountain numbers give an example
Kipish [7]
Most have only 4 different equations. 
For example, 
6+8=14
8+6=14
14-6=8
14-8=6


5 0
3 years ago
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