All categories

3 years ago

Solve for r when - 5 = – 4 - 20 r= What is r?

Mathematics

2 answers:

Sonbull [250]3 years ago

8 0

Answer:

r=1/20

Step-by-step explanation:

-5=-4-20r (+4 both sides)

-1=-20r (times -1 both sides)

1=20r (divide by 20)

1/20=r

balandron [24]3 years ago

7 0

Answer:

r is 19

Step-by-step explanation:

-4 - 20 = -24

-24 - r = -5

r = 19

You might be interested in

Sophie Ruth is eating a 50-gram chocolate bar that contains 30%, cocoa. How many grams of cocoa is in the chocolate bar?

Salsk061 [2.6K]

Answer:

We need to multiply the percentage as a decimal (0.30) with the amount of chocolate (50 g):

0.30*50 = 15 g

There are 15 grams of cocoa in the chocolate bar.

Step-by-step explanation:

7 0

3 years ago

The angle measures 42°, 50°, 130°, and 138° are written on slips of paper. You choose two slips of paper at random.

ratelena [41]

Answer:

the chances are 1/4

Step-by-step explanation:

you have 1/4 chance you will pick the two angles that make 180 degrees or supplementary

5 0

3 years ago

Read 2 more answers

Can you help me ?

kolezko [41]

It must have the [( )]

[(4/y) - z]

6 0

3 years ago

Please someone help me with this ASAP with the workout!!

astraxan [27]

The answer is 18 cm
Half of 72 is 36
Since YZ is 30, you would subtract 30 from 36 in order to get XY, so you would get 6 for XY
Half of circle W is 24, since it says the diameter of it is 48
So you would subtract XY from half of the diameter of W in order to get WX
It would look like this:
24-6=18

7 0

3 years ago

Read 2 more answers

A country's population in 1994 was 21 million.

VladimirAG [237]

Answer:

Step-by-step explanation:

22 = 21 $e^{7k\\}$