All categories

3 years ago

R/3 = 7

Mathematics

2 answers:

dangina [55]3 years ago

7 0

R=21. 21/3=7. To check your answer, you can do 7x3 and it'll equal 21.

vampirchik [111]3 years ago

3 0

Are you just trying to isolate the r?

If so.... r/3 = 7
Multiply 3 on both sides to clear the denominator
3(r/3) = 7(3)
3 = 21

CHECK
21/3 = 7

You might be interested in

If f(x)= x2/x+3, find f(x+h)?

kompoz [17]

f(x+h) = $\frac{x^{2}+2xh+h^{2} }{x+h+3}$

Step-by-step explanation:

Given,

f(x) = $\frac{x^{2} }{x+3}$

To find the value of f(x+h) we need to replace x by x+h

Hence,

f(x+h) = $\frac{(x+h)^{2} }{x+h+3}$

= $\frac{x^{2}+2xh+h^{2} }{x+h+3}$

[Here, we apply the formula of $(a+b)^{2}= a^{2} +2ab+ b^{2}$ ]

6 0

3 years ago

a preschool student finds a big bag of cookies and begins to take the cookies from the bag and hide them in her cubbyhole. after

guajiro [1.7K]

Answer:She will count the cookies by 2's

Step-by-step explanation:

6 0

3 years ago

How many hours and minutes is it from 10:55 p.m. on Friday to 9:35 a.m. on Saturday?

Grace [21]

Answer:

10 hours and 40 minutes

Step-by-step explanation:

1 hour 5 minutes + 9 hours 35 minutes

Hope this helps! Have a great day!

8 0

4 years ago

Robin can clean 72 rooms in 6 days how many rooms can robin clean in 9 days

galben [10]

Hello!

Robin can clean 72 rooms in 6 days. How many rooms can Robin clean in 9 days?

We have a proportional magnitude (directly proportional), if we increase the number of days for cleaning, obviously we will have more rooms cleaned, then:

clean rooms __________ days

72 ----------------------------------- 6

y ------------------------------------- 9

$\dfrac{72}{y} = \dfrac{6}{9}$

multiply the means by the extremes

$6*y = 72*9$

$6\:y = 648$

$y = \dfrac{648}{6}$

$\boxed{\boxed{y = 108}}\Longleftarrow(clean\:rooms)\end{array}}\qquad\checkmark$

Answer:

108 clean rooms in 9 days

________________________

I Hope this helps, greetings ... Dexteright02! =)

6 0

3 years ago

Which two expressions are equivalent?

MariettaO [177]

Answer:

First option

Step-by-step explanation:

The result of first expression:

7(6+z) multiply 7 with inside the parenthesis

7(6+z) = 42 + 7z

the result of second expression:

since we need to do multiplying first,

7*6 = 42 and 7*z = 7z

then we add them

42 + 7z this is the same result we found for the first equation

6 0

2 years ago