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prisoha [69]
3 years ago
12

4-9x= -14 solve the inequality.

Mathematics
1 answer:
polet [3.4K]3 years ago
6 0
4 - 9x = -14
4 - 4 - 9x = -14 - 4
9/9x = -18/9
x = -2
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ahrayia [7]
The first one: 10x+30
6 0
3 years ago
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2. Consider the functions
Ganezh [65]

Answer:

1 Subtract 8x8x from both sides.

fx-8x=-10fx−8x=−10

2 Factor out the common term xx.

x(f-8)=-10x(f−8)=−10

3 Divide both sides by f-8f−8.

x=-\frac{10}{f-8}x=−

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1 Subtract 2x2x from both sides.

gx-2x=-7gx−2x=−7

2 Factor out the common term xx.

x(g-2)=-7x(g−2)=−7

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6 0
3 years ago
A shop sells pairs of trainers for £52 each. They make a percentage profit of 30% on each pair. What was the cost of each pair o
Sphinxa [80]

Answer:

£15.6

Step-by-step explanation:

Method 1:

You are trying to find 30% of £52.

Therefore:

\frac{30}{100}  * 52 = \frac{30 * 52}{100}

If you solve this you will find that 30 × 52 = 1560, and 1560 ÷ 100 = £15.6.

So, the answer is £15.6.

Method 2:

You can solve 30% of £52 by using an algebra equation.

By using the rule that to convert a percentage to a decimal you divide by 100, you can change 30% to be 0.3.

Now, in order to write the equation, you will have to include 0.3 and 52.

The equation is:

0.3 * 52 = x

Once you multiply, you will find that the answer is £15.6.

I hope I helped!

3 0
3 years ago
What is number 4 really need help
ExtremeBDS [4]
Since the average is <numbers combined> over <number of numbers>, we have 4+1=5 numbers (tests) and 92+91+94+79+x=356+x, resulting in 
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7 0
3 years ago
Write an equation parallel to the line determined by the points (15, -6) and (-3, 13), through: (4, 2)
gulaghasi [49]

Answer:

The answer is

<h2>y =  -  \frac{19}{18} x +  \frac{76}{2}</h2>

Step-by-step explanation:

Equation of a line is y = mx + c

where

m is the slope

c is the y intercept

To find the equation of the parallel line we must first find the slope of the original line

That's

Slope of the through points

(15, -6) and (-3, 13) is

<h3>m =  \frac{13 -  - 6}{ - 3 - 15}  =  -  \frac{19}{18}</h3>

Since the lines are parallel their slope are also the same

So slope of parallel line = - 19/18

Equation of the line using point (4,2) and slope -19/18 is

<h3>y - 2 =  -  \frac{19}{18} (x - 4) \\ y - 2 =  -  \frac{19}{18}  x +  \frac{38}{9}  \\ y =  -  \frac{19}{18} x +  \frac{38}{9}  + 2</h3>

We have the final answer as

<h3>y =  -  \frac{19}{18} x +  \frac{76}{2}</h3>

Hope this helps you

7 0
3 years ago
Read 2 more answers
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