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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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PLEASE HELP RIGHT AWAY!!
Katen [24]

Answer:

$17.35/h

Step-by-step explanation:

In order to get the amount per hour he made, you first need to calculate the global amount of money he made.

He was paid $2,900 then he had costs of $1,200, that leaves him a net income of $1,700 ($2,900 - $1,200)

Then he worked a total of 98 hours for that money.

A salary is an amount of money expressed by a period of time.  In this case, we'll use hours.

So, Jonah earned $1,700 after 98 hours of work:

S = $1,700 / 98 hours = $17.35/h

5 0
2 years ago
3. CRAFTS Numa loves beads and wants to
valentina_108 [34]

The amount of beads according to the cube number is 238328.

According to the statement

we have to find that the value of the cube of the given value.

So, For this purpose, we know that the

A cube number is the result when a number has been multiplied by itself three times.

From the given information the number is:

(62)³

Cube of (62)³ = 62*62*62

Now, multiply these numbers

Cube of (62)³ = 3844*62

Then the value become

Cube of (62)³ = 238328

This is the value of the cube of the given numbers.

So, The amount of beads according to the cube number is 238328.

Learn more about cube number here

brainly.com/question/474968

#SPJ9

8 0
1 year ago
A number, y, is five times another number, x. The sum of the two numbers is 42. Write the system of equations.
vovikov84 [41]

Answer:

5x+x=42

6x=42

x=7

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
An athlete knows that when she jogs along her neighborhood​ greenway, she can complete the route in 10 minutes. It takes 20 minu
IgorLugansk [536]

Answer:

10 miles per hour.

Step-by-step explanation:

Let x represent athlete's walking speed.

We have been given that her jogging rate is 5 mph faster than her walking​ rate, so athlete's jogging speed would be x+5 miles per hour.

\text{Distance}=\text{Rate}\cdot \text{Time}

10 minutes = 1/6 hour.

20 minutes = 1/3 hour

While walking, we will get D_{\text{walking}}=x\frac{\text{miles}}{\text{hour}}\cdot \frac{1}{3}\text{hour}

D_{\text{walking}}=\frac{x}{3}

While jogging, we will get D_{\text{jogging}}=(x+5)\frac{\text{miles}}{\text{hour}}\cdot \frac{1}{6}\text{hour}

D_{\text{jogging}}= \frac{(x+5)}{6}

Since athlete is covering same distance while walking and jogging, so we can equate both expressions as:

\frac{x}{3}=\frac{x+5}{6}

Cross multiply:

6x=3x+15

6x-3x=15

3x=15

\frac{3x}{3}=\frac{15}{3}\\\\x=5

Therefore, athlete's walking speed is 5 miles per hour.

Jogging speed: x+5\Rightarrow 5+5=10

Therefore, athlete's jogging speed is 10 miles per hour.

3 0
3 years ago
A bag is on sale for $30. If the sale is 25% off, what was the original price of the bag? Explain your thinking
Eva8 [605]

Answer:

30x25/100

25%=7,5$

30+7,5$=37,5$

The original price was 37,5 because you had to first find out what was 25% in $ to then do the opposite of a sale since we are finding the original price so we have to add it to 30$ since 30$ was the price after the sale.

Hope this helps, have a good day!

Pls mark brainliest :))

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
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