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Rashid [163]
3 years ago
11

. If a car travels 400m in 20 seconds how fast is it going?​

Mathematics
2 answers:
siniylev [52]3 years ago
7 0
01010101010101010100101010101
lions [1.4K]3 years ago
5 0

Answer:

20

Step-by-step explanation:

speed = 400/20

so divide , 400/20 equals …

speed=20

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How do you simplify algebraic expressions?  
masya89 [10]
There are many reasons one may want to simplify, rearranging to find specific values - or maybe just making it simpler
Well, let's do some examples:
y(x(3+2)) +2 = -2y +2   <span>< I just made this one up, it looks really complicated right now, none the less it can be simplified easily
</span>y(3x+2x) + 2 = - 2y +2
3xy + 2xy + 2 = -2y +2
5xy + 2 = -2y +2    <-- the +2's dissapear because they cancel out
5xy = -2y

<span>And there we have it, that long expression has been simplified to something really simple.
</span>
Another example:
3(4(x+3(2 +z)) - 5)= 3y <span><- you can start where ever, I like starting in the middle
</span>3  *  (4 *  (x +  3*(2 + z)) -  5 ) = 3y  <span><-  here it is spaced out, we get a much better view
</span><span>3  *  (4 *  (x +  6 + 3z) -  5 ) = 3y</span>
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</span>Note: Simplify means solving to a degree, but you can't solve it because it has unknowns
7 0
3 years ago
A - Monomial <br><br> B - Binomial <br><br> C - Trinomial <br><br> D - none of the above
loris [4]

Answer:

the correct answer is option D

6 0
3 years ago
We usually Round off the 79.90% to 80.<br> What value does 80 count?
pochemuha

Answer: 00.10

Step-by-step explanation: Add 00.10 to 79.90 and you get 80. Brainliest please?

4 0
3 years ago
If f(x)=7-2x find f(3)+6
vazorg [7]
To get the answer we have to substitute x=3 and add 6 to the result.
Lets do this
f(x)=7-2x
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7 0
4 years ago
The sum of two numbers is 33 and thier difference is 2 find the number
sammy [17]

Answer:

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Step-by-step explanation:

17+ 15 = 32

.5 + .5 = 1

32 + 1 = 33

6 0
3 years ago
Read 2 more answers
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