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Strike441 [17]
3 years ago
6

Add the two expressions.3z - 4 and 2z + 5Enter your answer in the box.

Mathematics
1 answer:
Margarita [4]3 years ago
8 0
<span>3z - 4 + 2z + 5 = 5z + 1

hope that helps</span>
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A train travels at 45 mph for 3 h and then increases its speed to 55 mph for 2 more hours. How far does the train travel in the
sammy [17]

Answer:

<h2> 245miles</h2>

Step-by-step explanation:

Step one:

given that the first 3 hours the train travels at a speed of 45 mph.

i.e Time = 3 hours

    speed =45 mph

    distance=?

we know that speed = distance/time

distance= speed*time

distance= 45*3

distance=135miles

Step two:

For the nex two hours it travels at 55 mph

i.e time= 2hours

   speed= 55mph

  distance=?

distance= speed*time

distance= 2*55

 distance= 110mile

Step three:

Hence for a total of 5 hours drive, the total distance covered is

135+110= 245miles

4 0
3 years ago
(02.07 MC)
hjlf
The answer is 1.64 feet. 1.64 x 12 = 19.68 inches

19.68 x 2.54 cm= 49.9872 cm
7 0
3 years ago
Find the value of x and y
Anettt [7]

Answer:

x = 5

y = 3

Step-by-step explanation:

9x and 45 are alternate interior angles, meaning they're congruent, so set them equal to one another, like so:

9x = 45

<em><u>Divide both sides by 9:</u></em>

x = 5

<u>Solving for y</u>, the two sides are of equal length, so set them equal:

6y = 18

<em><u>Divide both sides by 6:</u></em>

y = 3

6 0
4 years ago
Read 2 more answers
If f(x)= (3+x)/(x-3) what is the f(a+2)
Akimi4 [234]

Answer:

                           f(a + 2) = (5 + a) / (a - 1)

Step-by-step explanation:

To answer items such as this, we directly substitute the a + 2 to the all the x's in the function such that,

                           f(a + 2) = (3 + a + 2) / (a + 2 - 3)

Simplifying the function generated above,

                           f(a + 2) = (5 + a) / (a - 1)

6 0
3 years ago
Read 2 more answers
Which conclusion is correct about the population of State A and State B?
Lapatulllka [165]
Could you post a Graph or the Question, please? 
Thank you.
8 0
4 years ago
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