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3 years ago

Solve 12=-r-11 i really need help

Mathematics

2 answers:

Blababa [14]3 years ago

7 0

Answer:

Step-by-step explanation:

Alika [10]3 years ago

6 0

R = -23
that’s the answer

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You are riding your scooter to a town that is 120 miles away and you can maintain a speed of 30 mph. How long will it take you?

Hitman42 [59]

Answer:

4 hours

Step-by-step explanation:

120 ÷ 30 = 4

Hope this helps. Pls give brainliest.

5 0

3 years ago

A gazelle runs 780 feet in 12 seconds. Angela wants to determine how far a gazelle could run in 1 minute at this rate. Explain h

Hitman42 [59]

Answer:

In 1 min a gazelle runs 3,900 ft.

As a fraction, 1/65

In order to find the solution to this problem you could use a table.

Since we are using seconds we have to convert the 1 min = 60 seconds.

Sec | 12 | 60

Fts | 780 | x

12 goes into 60 5 times, so we have to multiply 780 by 5 which gives us 3900.

x=3900

4 0

3 years ago

Question 1 (1 point)

olya-2409 [2.1K]

For this case we can propose a system of equations:

x: Let the variable that represents the number of small cookies

y: Let the variable that represents the number of large cookies

According to the statement we have:

$x + y = 130\\2x + 3y = 310$

We multiply the first equation by -2:

$-2x-2y = -260$

We have the following equivalent system:

$-2x-2y = -260\\2x + 3y = 310$

We add the equations:

$-2x + 2x-2y + 3y = -260 + 310\\y = 50$

We look for the value of the variable "x":

$x = 130-y\\x = 130-50\\x = 80$

Answer:

They sold 80 small cookies and 50 large cookies

6 0

3 years ago

Divide the fractions. 9/2 divided by 4/10

mario62 [17]

Answer:

11 1/4

Step-by-step explanation:

9/2/4/10

9/2/2/5

9/2*5/2

45/4

11 1/4

7 0

3 years ago

Read 2 more answers

I NEED HELP ASAP!!!!

GuDViN [60]

Answer:

the first one

Step-by-step explanation:

7 0

3 years ago