All categories

3 years ago

-2 1/4 = r-4/5, What does r =.

Mathematics

2 answers:

maksim [4K]3 years ago

8 0

Answer:

Assuming 2 1/4 is a mixed fraction the answer is r= -29/20

Step-by-step explanation:

Umnica [9.8K]3 years ago

8 0

Answer:

Step-by-step explanation:

-2 1/4 = r-4/5

r- 4/5 = - 2 1/4

r- 4/5 = - 9/4

r = -9/4 + 4/5

r = -9*5/4*5 + 4*4/5*4 = -45/20 + 16/20

= (-45+16)/20

= -29/20

You might be interested in

How many times can 409999 go into 20

grandymaker [24]

Your answer will be 0.0487806.

7 0

3 years ago

Read 2 more answers

Alan and debra want to find the mean number of movies students in their class

zimovet [89]

Answer:

Step-by-step explanation:

well if alan and debra are in separate class rooms. They would have to add up the number of movie students in each class room alan has X movie students and debra has Y movie students

Mean number = Average number = sum of the values / number of values

Mean number = (X + Y) / 2

3 0

3 years ago

Part A

alexgriva [62]

Answer:

6=2 , 12=4, 15=5, 24=8

Step-by-step explanation:

6 0

3 years ago

D -e/3d + e= e, for d

navik [9.2K]

Answer:

$\large\boxed{d=\dfrac{e^2+e}{1-3e}}$

Step-by-step explanation:

$\dfrac{d-e}{3d+e}=e\\\\\dfrac{d-e}{3d+e}=\dfrac{e}{1}\qquad\text{cross multiply}\\\\(1)(d-e)=(e)(3d+e)\qquad\text{use the distributive property}\\\\d-e=3de+e^2\qquad\text{add}\ e\ \text{to both sides}\\\\d=3de+e+e^2\qquad\text{subtract}\ 3de\ \text{from both sides}\\\\d-3de=e^2+e\qquad\text{distribute}\\\\d(1-3e)=e^2+e\qquad\text{divide both sides by}\ (1-3e)\\\\d=\dfrac{e^2+e}{1-3e}$

8 0

3 years ago

If you multiply two integers together and then add 4, the result is 40. Which of the following could NOT be the sum of the two n

marta [7]

Answer:

Step-by-step explanation:

xy + 4 = 40

xy = 40 - 4

xy = 36

What two numbers can b multiplied to give 36? Then add them.

9 + 4 = 13

18 + 2 = 20

6 + 6 = 12

12 + 3 = 15

The odd option is 18

6 0

3 years ago