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castortr0y [4]
3 years ago
15

Which expression is equivalent to this expression?

Mathematics
1 answer:
Lyrx [107]3 years ago
5 0

Answer:

a-4b

Step-by-step explanation:

you combine like terms,  (-6b)+2b=-4

4a-3a=1a or just a

then you get your awsner a-4

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you can speed from 0 to 25 m/s in 25 seconds and your friend can speed up from 0 to 6 m/s in 6 seconds. who is faster
aksik [14]

Answer:

Neither; see below

Step-by-step explanation:

Your acceleration: a=\frac{\Delta v}{\Delta t}=\frac{25-0}{25}=1m/s^2

Your friend's acceleration: a=\frac{\Delta v}{\Delta t}=\frac{6-0}{6}=1m/s^2

Therefore, since both you and your friend accelerate at the same rate, neither is faster.

7 0
2 years ago
A university is trying to determine if certain remedial classes need to be offered to their incoming class. To do so, they give
lora16 [44]

Answer:

The experiment is identifying whether a student gets less than a 75% on the entrance exam.

The trial is one exam being taken.

An outcome is a student scoring 80%.

Step-by-step explanation:

An experiment occurs when an intervention is made by a researcher and its effect are studied, thus the experiment here is identifying whether a student gets less than a 75% on the entrance exam.

The trial is the one exam being taken.

While an outcome is the aftermath of the experiment which includes a student scoring 80%.

8 0
3 years ago
Use the equation tool to complete the table.<br> y = 120 + 18(x)
Ira Lisetskai [31]

Answer:

x2 +2x−xy when x = 250 and y = −120 ... sic Algebra: Patterns and Equations (13:18)

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
311 students went on a field trip. Six buses were
kow [346]

Answer:

50.6

Step-by-step explanation:

it says 7 students traveled by car so you need to take 7 from 311, then divide your answer (304) by 6, which is 50.6

5 0
3 years ago
Read 2 more answers
Tom drove at a constant speed 50 mph for 2.5 hours Albert drove at a constant speed of 65 mph for 2 hours. How many more total m
Alona [7]

Answer:

  5 miles

Step-by-step explanation:

distance = speed · time

Tom's distance = (50 mi/h)·(2.5 h) = 125 mi

Albert's distance = (65 mi/h)·(2 h) = 130 mi

Albert drove 130 -125 = 5 miles farther than Tom.

8 0
3 years ago
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