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ohaa [14]
3 years ago
15

(15a -7b+4c) -(-3a-6b+12c) adalah​

Mathematics
1 answer:
Firlakuza [10]3 years ago
8 0

Answer:

15a-7b+4c+3a+6b-12c

=18a-b-8c

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HELP???
mr Goodwill [35]
Need to take 25 mg times 18% then times it by 4 then times it again by .01

3 0
3 years ago
A cup of coffee cost $2.75. If the total cost is $16.50, then how many cups of coffee were purchased? Choose the correct equatio
Colt1911 [192]

Answer:

6

Step-by-step explanation:

16.50=2.75x

4 0
3 years ago
License plates in a particular state display 3 letters followed by 3 numbers. How many different license plates can be manufactu
netineya [11]

Using the fundamental counting theorem, it is found that 17,576,000 different license plates can be manufactured.

Fundamental counting theorem:

States that if there are n things, each with n_1, n_2, \cdots, n_n ways to be done, each thing independent of the other, the number of ways they can be done is:

N = n_1 \times n_2 \times \cdots \times n_n

In this problem:

  • Since repetition is allowed, for the 3 letters, there are 26 outcomes, hence n_1 = n_2 = n_3 = 26.
  • For the 3 numbers, there are 10 outcomes, hence n_4 = n_5 = n_6 = 10

Then:

N = 26^3 \times 10^3 = 17576000

17,576,000 different license plates can be manufactured.

To learn more about the fundamental counting theorem, you can take a look at brainly.com/question/24314866

5 0
2 years ago
Whats 8u2-42u2 simplified
Alex73 [517]
If your 2 means "u squared" then

Just do 8-42=-34
The answer is -32u^2

I use ^ to show exponents
7 0
3 years ago
-x + 4y = 10 and x - 3y = 11 using substitution
11111nata11111 [884]

Answer:

y = 21

x = 74

Step-by-step explanation:

-x + 4y = 10

x - 3y = 11

Let the first eqn be eqn 1 and the second be eqn 2

ie

- x + 4y = 10 --------eqn 1

x - 3y = 11 ----------eqn 2

From eqn 1, make x the subject of the formula

Carrying x over the equal to in order to change the sign from - to +

4y - 10 = x

Substitute the value of x in eqn 2

4y - 10 - 3y = 11

Collecting like terms

4y - 3y = 11 + 10

y = 21

The value of y is 21

Then, substitute the value of y into eqn 1

-x + 4y = 10

-x + 4(21) = 10

-x + 84 = 10

84 -10 = x

In order to get rid of the - sign

x = 74

Therefore,

x = 74

y = 21

4 0
3 years ago
Read 2 more answers
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