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vaieri [72.5K]
3 years ago
13

Simplify The following equations

Mathematics
1 answer:
Kryger [21]3 years ago
5 0
Mostly collect like terms
use associative property which is
(a+b)+c=a+(b+c)
and remember that:
you just use a general rule
x+x=2x
x^2+x^2=2x^2
3xy4xy=7xy
3x+4x^2=3x+4x^2
you can only add like terms( like terms are terms that are same name like x or y are differnt, and like terms have same power exg x^2 and x^3 and x^1/2 and such


so first one



3b+11c-4c-c
since they are all c except for the first one term, just assign a number for each so it simplifies to c times(11-1)+b(3-4)=c(10-1b=10c-b or

you just use a general rule
x+x=2x
x^2+x^2=2x^2
3xy4xy=7xy
3x+4x^2=3x+4x^2




second one9a-1+8c-8a+c
group like terms
(9a-8a)+(8c+c)-1=(a)+(9c)-1=a+9c-1

12c+5a+7-13c+4a
group like terms(12c-13c)+(5a+4a)+7
add like terms
-c+9a+7
the solution is 9a-c+7


-15-6c+3b-6c+9-2b
group like terms
(-15+9)+(-6c-6c)+(3b-2b)
-6+(-12c)+b=b-6-12c



the answers are:

10c-b

a+9c-1

9a-c+7

b-12c-6

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HEEEEEEEEEEEEELLLLLLLLP
Paha777 [63]
The first one is c
(x+7)(5)
Distribute and multiply
5x +35


I don’t know about second one good luck
8 0
2 years ago
PLEASE NEED HELP ASAP TYTY I WILL BE GIVING THANKS!
garri49 [273]

Answer:

B. 112°

Step-by-step explanation:

4x -4 = (3x+4) + (2x-44)

4x -4 = 5x - 40

5x - 4x = -4 + 40

x = 36

∠BCA = 3 * 36 + 4 = 112

4 0
2 years ago
What is 0.01% of 400? Round to the nearest hundredth.
Bumek [7]

Answer:

0

Step-by-step explanation:

0.01% of 400 is 0.04

Your number 0.04 is close to these

multiples of 100:

-100

0

100

Rounding to the nearest 100 gives you 0

4 0
3 years ago
Read 2 more answers
This isnt urgent but i need an answer, i will give the person who answers correctly brainliest, please try
SSSSS [86.1K]

Answer:  3, 5, 7

Step-by-step explanation:

There is a "trick" to determine divisibility by 3: if the sum of the digits is divisible by 3, the number is divisible by 3.

3 + 1 + 5 = 9 which is a multiple of 3, so 315 is divisible by 3.

It works for 9 also. since the sum of the digits is 9, 315 is divisible by 9.

Divisibility by 5: any number that has the units digit 5 or 0 is divisible by 5.

For 7, I just tried it  315÷7= 45

Only even numbers are divisible by 2.

If a 3-digit number is divisible by 11, the middle digit will be the sum of the first and last digits.   (That is not the case for 315)  But 385 is divisible by 11, also 495, 253, and many others you can try for fun.

8 0
3 years ago
Chris and lisa went shopping and spent a total of $25.50. Lisa spent $13.50 more than chris spent. Hiw much did lisa spend?
baherus [9]

Answer:

12$

Step-by-step explanation:

$25.50-$13.50=$12

5 0
3 years ago
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