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lilavasa [31]
3 years ago
13

Of the following options, what could be a possible first step in solving the equation 8x + 3 = 2x − 15?

Mathematics
1 answer:
miskamm [114]3 years ago
4 0
 B.<span>Adding 15 to both sides of the equation. 

A. Adding 8x to both sides wouldn't cancel anything out. 
B. Adding 15 to both sides will cancel out 15 making it easier to solve for x.  
C.Adding 3 to both sides will not cancel anything out.
D. Adding 2x to both sides won't cancel anything out. </span>
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3/5x=52 is the answer 120 or 130
postnew [5]
The direct answer to your question is: "No".
because in that equation, 'x' is not 120 or130.

Let's find out what 'x' actually is:

<u>3/5 x  =  52</u>

Multiply each side by  5 :      3x  =  260

Divide each side by  3 :       <em>  x  =  86 and 2/3 </em>
8 0
4 years ago
Please help I suck at math and this is for a grade
qwelly [4]
C. negative exponents always go at the bottom
6 0
3 years ago
Read 2 more answers
Is the discriminant of f positive , zero , or negative ​
Kruka [31]

Answer:

Negative because there's no x-intercepts!

Hope this helps!

8 0
3 years ago
Question 13
ArbitrLikvidat [17]

Answer:

C

Step-by-step explanation:

Here in this question , we are interested in calculating the total distance covered by the train in the 10 minutes that it ran.

From the first part of the question, we already know the distances in the first 5 minutes.

Now, to calculate the total distance in the second 5 minutes, we use the distance formula since we have the average speed and the time;

Mathematically; Total distance = average speed * time

From the question, average speed is 33km/h, while time is 5 minutes. To achieve a consistent unit, we convert 5 minutes to hours.

That would be 5/60 = 1/12 hours

So the total distance in the second 5 minutes is;

33 * 1/12 = 2.75 km

Now, to calculate the total distance traveled, let’s add up the distances in the first 5 minutes and convert to kilometers;

That would be;

68 + 127 + 208 + 312 + 535 = 1,250 m

Let’s convert this to km.

We simply divide by 1000 = 1250/1000 = 1.25 km

The total distance is thus ;

1.25 + 2.75 = 4 km

4 0
4 years ago
The base of a rectangular fish tank measures 18 inches long by 10 inches wide. If it is filled with 1,080 cubic
Oxana [17]

Answer:

Volume = length x width x height

V = 18 x 8 x 12 = 1728 cm3 = 1728 ml = 1.729 liters

Step-by-step explanation:

5 0
3 years ago
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