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AnnZ [28]
4 years ago
10

* can some 1 plz solve* 4x(6-2) -10=20

Mathematics
1 answer:
Ratling [72]4 years ago
8 0
Get the x on one side of the equation and the numbers on the other side.

First, use the distributive law to expand 4x(6 - 2)

4x(6 - 2) - 10 = 20
24x - 8x - 10 = 20

Combine like terms. 24x and -8x have the same variables.

24x + (-8x) = 16x

Now we have 16x - 10 = 20

We need to get ride of that -10. That way the 16x will be alone.
We need to subtract or add to -10 to make it to a 0.
We will add 10 to -10 to make it a 0.
Do the same thing with the other side.

16x - 10 = 20
16x = 30

Now divide both sides by 16 so the x can be alone.

x = 30/16

Change to a mixed number.

x = 1 14/16

Simplify 

x = 1 7/8

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there are 78 tourists going on a sightseeing trip.the tour company's buses hold 12 people each how many buses will they need?
vovangra [49]

Answer:

6.5

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
The national debt in 2013 was $16,755,133,009,522. What is the smallest power of 10 that will exceed this number.​
Artemon [7]

Answer:

10^{14}

Step-by-step explanation:

In scientific notation, the national debt in 2013 was approximately

1.67 \times 10^{13}

You can see this by taking the decimal point between the 1 and 6 and moving it 13 places to the right.

The smallest power of 10 that will be larger than this number is  10^{14}.

4 0
3 years ago
-6(1 - 5v) = 54<br>-67301 = 54<br>I don't think that is the anwer​
tatiyna
V=2
First you need to divide both sides by -6
Then move the 1 subtracting
Then divide both sides by -5

7 0
3 years ago
g Let P be the plane that goes through the points A(1, 3, 2), B(2, 3, 0), and C(0, 5, 3). Let ` be the line through the point Q(
Sedbober [7]

Answer:

  (x, y, z) = (1, 1/3, 3 1/3)

Step-by-step explanation:

The normal to plane ABC can be found as the cross product ...

  AB×BC = (1, 0, 2)×(2, -2, -3) = (4, 1, 2)

Then the equation of the plane is ...

  4x +y +2z = 4·0 +5 +2·3 . . . . using point C to find the constant

  4x +y +2z = 11

__

The direction vector of the reference line is the vector of coefficients of t: (0, -1, 2). Then the line through point Q is ...

  (x, y, z) = (1, 2, 0) +t(0, -1, 2) = (1, 2-t, 2t)

__

The value of t that puts a point on this line in plane ABC can be found by substituting these values for x, y, and z in the plane's equation.

  4(1) +(2 -t) +2(2t) = 11

Solving for t gives ...

  t = 5/3

so the point of intersection of the plane and the line is

  (x, y, z) = (1, 2-t, 2t) = (1, 2-5/3, 2·5/3) = (1, 1/3, 3 1/3)

5 0
3 years ago
It costs a family $348.00 to buy a 15-ft-by-16-ft rug. If the cost is proportional to the area,
likoan [24]

The cost of the family rug with dimensions 10-ft-by-11-ft given a proportional relationship is $159.50

<h3>How to solve using ratio?</h3>

Cost = $348.00

Area of rug = length × width

= 15 ft × 16 ft

= 240 square feet

Cost of a new rug = x

Area = length × width

= 10 ft × 11 ft

= 110 square feet

  • Equate the ratio of cost to area of both rugs

348 : 240 = x : 110

348/240 = x/110

cross product

348 × 110 = 240 × x

38,280 = 240x

x = 38,280 / 240

x = $159.50

Learn more about ratio:

brainly.com/question/2328454

#SPJ1

5 0
2 years ago
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