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cestrela7 [59]
3 years ago
7

Jayden drove 195 miles in 5 hours. On average, how fast did he drive in miles per hour? Express your answer in simplest form.

Mathematics
1 answer:
sergij07 [2.7K]3 years ago
5 0

Answer:

39 miles per hour

Step-by-step explanation:

195 miles divided by 5 hours(195/5) would be 39mph.

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Simplify:<br> x2 +5x-14<br> x2+10x+21
goblinko [34]

Answer:

4x + 15x + 7

Step-by-step explanation:

x2 + x2 = 4x

5x + 10x = 15x

-14 + 21 = 7

5 0
2 years ago
2. One of the most common mutagens in
vodka [1.7K]

Answer:

Ultraviolet (UV) radiation.

Step-by-step explanation:

Mutagen is part of genetics, it is chemical or physical agent which are present in atmosphere and causes changes or mutation in the genetic materials i.e. in DNA (these changes can be permanent as well). Example of mutagen are radioactive substances, ultraviolet radiation, etc.

UV radiation is an electromagnetic radiation which is present in sunlight. It is a strong mutagen which is when absorbed by DNA can cause extreme damage, for example, uncontrolled division of skin cell can cause skin cancer, that's the reason why UV radiation is the most common mutagen to which we are exposed to when we are outside in the sunlight.

6 0
3 years ago
An athletic coach conducted an experiment to test whether a four-week stretching and flexibility program reduces the number of m
son4ous [18]

Answer:

The remaining 15 athletes did not participate in any type of flexibility program

3 0
2 years ago
Christel wants to know what the most popular color at her school is. She surveys students grades 1,2,3.
shutvik [7]

Answer:

It will be biased.

Step-by-step explanation:

By surveying only grades 1, 2, and 3, she is not taking a representation of the entire school. It is possible that the popular color or the color the students like would change over time and the opinion of the younger kids could be different from that of the older kids. Therefore, the sample is biased unless she surveys students from all grades.

7 0
2 years ago
I'm having trouble with algebraic fractions . 3/2n-8/3=-29/12
nadezda [96]

what we can do is hmmmm get the LCD of all fractions, and multiply both sides by that LCD, let's see, we have denominators of 2, 3 and 12, so we can use the LCD of 12, and multiply both sides by 12 to do away with the denominators.

\bf \cfrac{3}{2}n-\cfrac{8}{3}=-\cfrac{29}{12}\implies \stackrel{\textit{multiplying both sides by }\stackrel{LCD}{12}}{12\left( \cfrac{3}{2}n-\cfrac{8}{3} \right)=12\left( -\cfrac{29}{12} \right)}\implies (6)3n-(4)8=(1)-29 \\\\\\ 18n-32=-29\implies 18n=3\implies n=\cfrac{3}{18}\implies n=\cfrac{1}{6}

5 0
3 years ago
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