All categories

2 years ago

What is the quotient a-3/7÷3-a/21

Mathematics

2 answers:

Svetach [21]2 years ago

8 0

Its -3 I just took the test

Airida [17]2 years ago

3 0

I wish you were using parentheses here. I must assume (without knowing for sure) that y ou mean

a - 3/7
----------
3 - a/21

The LCD here is 21, since 7 divides into 21 without a remainder.

Thus, multiply numerator and denominator by 21:

21a - 9
-----------
63 - a

You could leave this result as is, or you could factor out 3:

7a-3
3 ---------
63-a

You might be interested in

Semester 1 finals are this week for me. Any advice?

krek1111 [17]

Study hard and take the test slowly. rushing will make you get all the wuestions wrong. if you need more advice, message me.

7 0

2 years ago

Read 2 more answers

Write the set by listing its elements.

IceJOKER [234]

Step-by-step explanation:

set o= o

set t= t

those are the set of letters used to form the set

7 0

2 years ago

- slope = 2/7 ; y-intercept = 0

Yuri [45]

Answer:

y=2/7x

Step-by-step explanation:

y=mx+b where m=slope and b=y-intercept,

y=2/7x+0

y=2/7x

4 0

3 years ago

Marshall wrote a total of 8 pages over 4 hours. After spending 7 hours writing this week, how many pages will Marshall have writ

astraxan [27]

8 pages per 4 hrs
2 pages per hour
2 pages per 7 hours
14 pages

7 0

2 years ago

An investor has an account with stock from two different companies. Last year, his stock in Company A was worth $1790 and his st

stiv31 [10]

Answer:

20.7%

Step-by-step explanation:

Amount of stock increased in Company A = 20% of 1790

= 0.20 * 1790 = $ 358

Investor's stock in company A this year = 1790 + 358 = $ 2148

Amount of stock increased in Company B = 22% of 1000

= 0.22 * 1000= $ 220

Investor's stock in company B this year = 1000 + 220 = $ 1220

Total amount in investor's stock account = 2148 + 1220 = $ 3368

Increased amount = 3368 - 2790 = $ 578

Increase percentage = $\frac{578}{2790}*100$ = 20.71

= 20.7%

7 0

2 years ago

Read 2 more answers