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kotykmax [81]
3 years ago
11

How many Solutions are there to the question below

Mathematics
2 answers:
Natalija [7]3 years ago
6 0
I think is B because any value of X makes the equation true
Nadusha1986 [10]3 years ago
3 0

Answer:

B

Step-by-step explanation:

By expanding we can get

5x+7x+48=12x+48

Simplifying gets us

12x+48=48+12x

12x=12x

This is true for any number so therefore there are infinity solutions.  

You might be interested in
Mr. Jones is four times as old as his son. Six years ago he was ten times as old as his son. How old is the son now?
Advocard [28]

Answer:

After 16 years …mr James age =4X+16 and his son's age will be X+16

As per the question in 16 years his age will be 2 twice

(4X+16)=2(X+16)so by simplifying this we will get 2X=16..and X=16/2=8

Step-by-step explanation:

6 0
3 years ago
On a trip, a motorist drove 150 miles in the morning and 50 miles in the afternoon. His average rate in the morning was twice hi
Lina20 [59]

Answer:

Morning's average rate = 50 mph, and Afternoon's average rate = 25 mph.

Step-by-step explanation:

Suppose he drove 150 miles for X hours, then his average rate in the morning was (150/X) mph.

Given that he spent 5 hours in driving.

And he drove 50 miles for (5-X) hours, then his average rate in the afternoon was 50/(5-X) mph.

Given that his average rate in the morning was twice his average rate in the afternoon.

(150/x) = 2 * 50/(5-x)

150/x = 100/(5-x)

Cross multiplying terms, we get:-

150*(5-x) = 100*x

750 - 150x = 100x

750 = 100x + 150x

750 = 250x

x = 750/250 = 3.

It means he spent 3 hours in the morning and 2 hours in the afternoon.

So morning's average rate = 150/3 = 50 mph.

and afternoon's average rate = 50/(5-3) = 25 mph.

8 0
3 years ago
your family is driving from cincinnati to st louis. the graph relates your distance from st.louis d in miles and travel time h (
rewona [7]

The solution is about a distance-time graph. The interpretation of the graph is that it took the family 6 hours to travel a distance of 360 miles. Note that the distance is plotted on y-axis and time on the x-axis.

<h3>What is a distance-time graph?</h3>

A distance time graph is a simple graph that shows the relationship between the time travelled the distance covered while doing do.

The slope-intercept form is

y= mx+b−⋯(1)

The y-intercept is 360

⇒b = 360; and m = −60

Substituting the value of m = −60

and b = 360

in (1) above,

⇒y = −60x  +360

The x-intercept is

y = 0,

⇒0= −60x+360

hence, x=6

The y-intercept is

x=0

⇒y=−60(0)+360

⇒y=360

In conclusion, the x - intercept is the time in hours between Cincinnati and St. Loui: and

The  y - intercept is the distance between Cincinnati and St. Louis.

Learn more about distance-time graphs at:
brainly.com/question/13877898
#SPJ1

6 0
2 years ago
Lines a and b are parallel.
Jlenok [28]
The value of X is 16 because the lines intercept
7 0
3 years ago
Read 2 more answers
The square of (-abc) is
lana66690 [7]
It is read as a minus b minus c whole square. The (a - b - c)2 formula is expressed as (a - b - c)2 = a2 + b2 + c2 - 2ab + 2bc - 2ca.
5 0
3 years ago
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