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satela [25.4K]
2 years ago
7

3x−4y=21 what does the x and y mean?

Mathematics
1 answer:
neonofarm [45]2 years ago
6 0

Answer:

They are the two variables in the equation. They could will have different or the same values, but are seperate mathematical and logical entities.

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A bag contains yellow marbles and blue marbles, 73 in total. The number of yellow marbles is 7 more than 5 times the number of b
Roman55 [17]

Answer:

number of yellow marbles=62.

Step-by-step explanation:

It is given that in a bag there are yellow marbles and blue marbles and the total number of marbles=73.

Let the number of Blue marbles=x, then according to the question, number of yellow marbles will be =5x+7.

Now, Total number of marbles= number of yellow marbles+number of blue marbles.

⇒73=x+5x+7

⇒73-7=6x

⇒66=6x

⇒x=11

Therefore, numberof blue marbles=x=11 and

number of yellow marbles=5x+7=5(11)+7=55+7=62.

8 0
3 years ago
Find the indicated limit, if it exists. limit of f of x as x approaches 9 where f of x equals x plus 9 when x is less than 9 and
SVEN [57.7K]

Answer:

B. 18

Step-by-step explanation:

For the function

f(x)=\left\{\begin{array}{l}x+9,\ \ x

we can find the value of the function for all x that are very close to 9 but are less than 9 and for all values of x that are very close to 9 but are greater than 9.

1. For x

\lim \limits_{x\rightarrow 9}f(x)=\lim \limits_{x\rightarrow 9}(x+9)=9+9=18

2. For x\ge 9:

\lim \limits_{x\rightarrow 9}f(x)=\lim \limits_{x\rightarrow 9}(27-x)=27-9=18

So, limit exists and is equal to 18.

8 0
2 years ago
A red light flashes every 3 seconds.
Helen [10]

pls follow me

Step-by-step explanation:

264 seconds. is your answer

hope it helps

6 0
2 years ago
Read 2 more answers
Please help ASAP!!!! ​
katrin [286]

The answer is B i had this problem.

6 0
3 years ago
Read 2 more answers
Please answer this question and i will mark you brainliest.
juin [17]

Answer:

4 altogether

0,1 + 1, 1 = 1 RA

0,1 + 2,1 = 1 RA

0.2 +1, 2 = 1 RA

0,2 +2,2 = 1 RA

Step-by-step explanation:

8 0
3 years ago
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