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gogolik [260]
3 years ago
12

-3x+2=-7 What does x equal? And how do you solve it?

Mathematics
1 answer:
Liono4ka [1.6K]3 years ago
8 0

Answer:

x = 3

Step-by-step explanation:

Given

- 3x + 2 = - 7 ( subtract 2 from both sides )

- 3x = - 9 ( divide both sides by - 3 )

x = 3

You might be interested in
What is the area of a triangle in square units if base =11 and height=20
Sergio [31]

Answer: 110

Step-by-step explanation:

11x20=220 220\2=110

6 0
3 years ago
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When truckers are on long-haul drives, their driving logs must reflect their average speed. Average speed is the total distance
KengaRu [80]

Answer:

0.500 hour

Step-by-step explanation:

Givens

<em><u>Distance</u></em>

  • Total Distance on the highway = 3hr * 60 miles / hr = 180 miles
  • Distance in the city = 20 miles
  • Total Distance = 180 + 20 = 200 miles

<em><u>Time</u></em>

  • Time on the highway = 3 hours
  • Time in the city = x

Formula

d /t = r

Solution

  • Average rate = 57.14
  • Total Distance / Total Time = average rate
  • 200 / (3 + x) = 57.14                               Multiply both sides by 3 + x
  • 200 = 57.14 * (3 + x)                               Remove the brackets
  • 200 = 57.14*3 + 57.14x                           Multiply the factors on the right
  • 200 = 171.42 + 57.14x                              Subtract 171.42 from both sides.
  • 200 - 171.42 = 171.42 - 171.42 + 57.14x   So the subtraction
  • 28.58 = 57.14x                                         Divide by 57.14
  • 28.57/57.14 = x
  • x = 0.500 hour                                        Answer


3 0
3 years ago
Read 2 more answers
4. Roger was growing plants for his science project. He measured the plants every day.
Zinaida [17]

Answer:

the answer could be 10/3 and decimal form is 3.3 and mixed form is 3 1/3 (i hope this helps sorry if I'm wrong!)

Step-by-step explanation:

5 0
3 years ago
This is a plane with two axes as a frame of reference. The x axis is a horizontal line and the y axis is perpendicular to it the
stira [4]

Answer:

Coordinate plane

Step-by-step explanation:

The two dimensional plane made up by the intersection of a vertical (y-axis) and a horizontal (x-axis) perpendicular lines that cross each other once at the zero point mark known as the origin is called the Cartesian plane or coordinate plane. The origin is labeled letter O with coordinates 0,0

The Cartesian plane is used to plot graph lines and points so as to present algebraic ideas in a visual form and to form as well as interpret ideas in algebra.

7 0
3 years ago
In a 40-day period, at least one bear was observed by a camper in a designated camp site on 28 separate days. According to this
olasank [31]
<span>At least one bear was sighted on 28 separate days in 40 day period total = 28/40
We're looking for the daily frequency of bear sightings, that's in the whole 40 day period. 

Let's say 40 days period = 100%.
Then what's 28 days?
</span>

So the solution we're looking for would be (<span><span>28 days∗100) / </span>40 days = 70%</span>

The final answer is B. 70%.

<span>
</span>

5 0
3 years ago
Read 2 more answers
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