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geniusboy [140]
4 years ago
14

How do I solve 2(x-8)+4x=20 ? Graph the solution. Solve.

Mathematics
2 answers:
tekilochka [14]4 years ago
7 0

Answer:

Step-by-step explanation:

Although I cannot graph this here, I can solve it.

2(x-8)+4x=20

2x-16+4x=20

6x=36

x=6

Hope this helps!

olya-2409 [2.1K]4 years ago
7 0
4x -16 +4x=20
8x -16 =20
Add 16 to both sides
8x=36
Then divide 8 by both sides
So this means that x=4.5 I hope this helped!
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Evaluate 5(6) -c ifc=7
ahrayia [7]
23.

Work:
5(6)-7
5(6)=30
30-7=23
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3 years ago
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What is the quotient of 640 and 5
MatroZZZ [7]

Answer:

128

Step-by-step explanation:

Quotient means to divide. So i.e you want to work out 640÷5.

A quick trick to divide by 5 (Without a calculator) is to double the number, and the divide by 10.

so i.e we get 640x2 = 1280.

Then 1280÷10 = 128.

5 0
4 years ago
A basket contains 8 green apples, 11 red apples, 5 nectarines, and 12 oranges. Mark randomly chooses a piece of fruit, eats it,
bogdanovich [222]

Answer:

3.17% probability of selecting first a green apple and then a nectarine.

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

P(a green apple then a nectarine)

This is the probability of selecting first a green apple and then a nectarine.

Initially, there are 8+11+5+12 = 36 fruits, of which 8 are green apples. So 8/36 probability of choosing a green apple.

Now, there are 35 fruits, of which five are nectarines. So 5/35 probability of choosing a nectarine.

Then

p = \frac{8}{36}\times\frac{5}{35} = 0.0317

3.17% probability of selecting first a green apple and then a nectarine.

3 0
3 years ago
Two-fifths of one less than a number is less than three-fifths of one more than that number. What numbers are in the solution se
Anestetic [448]
(2/5)(x-1)<(3/5)(x+1)  perform indicated multiplications

(2x-2)/5<(3x+3)/5  multiply both sides by 5

2x-2<3x+3  add 2 to both sides

2x<3x+5  subtract 3x from both sides

-x<5  divide both sides by -1  (remember to reverse direction of inequality sign when multiplying/dividing by a negative value)

x>-5
6 0
3 years ago
Question 7(Multiple Choice Worth 5 points)
Yuki888 [10]

Answer:

y = -3x

Step-by-step explanation:

Given

The attached graph

Required

Determine the graph equation

To do this, we pick any 3 corresponding points of x and y

(x_1,y_1) = (0,0)

(x_2,y_2) = (2,-6)

(x_3,y_3) = (-4,12)

The equation can then be solved using linear interpolation as follows:

\frac{y-y_3}{x-x_3} = \frac{y_2 - y_1}{x_2-x_1}

This gives:

\frac{y-12}{x-(-4)} = \frac{-6 -0}{2-0}

\frac{y-12}{x+4} = \frac{-6 -0}{2-0}

\frac{y-12}{x+4} = \frac{-6}{2}

\frac{y-12}{x+4} = -3

Multiply both sides by x + 4

(x + 4) * \frac{y-12}{x+4} = -3 * (x + 4)

y - 12 = -3 *(x + 4)

Open bracket

y - 12 = -3x -12

Add 12 to both sides

y - 12+12 = -3x -12+12

y = -3x

6 0
3 years ago
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