1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Evgen [1.6K]
3 years ago
12

The length of a rectangle is 10 yd less than three times the width, and the area of the rectangle is 77 yd^2. Find the dimension

s of the rectangle.
Mathematics
1 answer:
oksano4ka [1.4K]3 years ago
8 0

Answer:

width = 7, length = 11

Step-by-step explanation:

area = 77

length = 3w - 10

width = w

w(3w - 10) = 77

3w^2 - 10w - 77 = 0

(3w + 11)(w - 7) = 0

we rule out 3w + 11 = 0 because w would be negative

so we use w - 7 = 0

so the width = 7

length = 3w - 10

length = 21 - 10

length = 11

You might be interested in
Help please !! 20 points
Readme [11.4K]
For the table 0.2 would be (1/5) 0.5 would be (1/2). And 0.7 would be (7/10).


For number 2 I would say the denominator changed each time
8 0
3 years ago
Factor 81a^2b^4-c^6 completely
olga nikolaevna [1]

Answer: (9ab^2+c^3)(9ab^2-c^3)

Step-by-step explanation:

81a^2b^4-c^6

(9ab^2)^2-(c^3)^2

(9ab^2+c^3)(9ab^2-c^3)

Hope this helps, HAVE A BLESSED AND WONDERFUL DAY! As well as a great Superbowl Weekend! :-)

- Cutiepatutie ☺❀❤

3 0
3 years ago
Karen invested $2,000 in a special savings account.
WARRIOR [948]

Answer:

D. $512,000

Step-by-step explanation:

Well if the balance doubles every 5 years, then dividing 40 by 5 gives us the number of times the money will double, which is 8. We can then turn this into the equation 2000(2^{8}). 2^8 can be simplified to 256. Multiply that by 2000 and we get our answer, 512000. Hope this helps!

<h2><em><u>Pls mark brainliest!</u></em></h2>
4 0
2 years ago
Laquita practiced 60 math facts. Kinman practiced 15 more facts than Laquita. How many math facts did they practice in all?
Afina-wow [57]

Answer:

They practiced a total of 75 math facts in all!

60 + 15 = 75 :D

5 0
2 years ago
A truck driver drove 48 miles for 45 minutes. At this rate, how many miles can the truck driver drive in one hour?
alexandr1967 [171]

Answers

2880

Step-by-step explanation:

48 miles = 1 minute

? = 60 minutes( 1hr )

1hr = 48 × 60 = 2880miles

7 0
2 years ago
Other questions:
  • Need help please explain !’ The answer
    15·1 answer
  • I need help someone please help me with this math question
    14·1 answer
  • I need help with this question
    14·2 answers
  • What is the value of the expression 30+(-6)?
    8·2 answers
  • Francis heard that a car stereo system was on sale for 30% off. If the sale price was $57.75, what was the original price of the
    12·2 answers
  • A. 17 + 4p<br> b. 18 + 3d + 3p<br> c. 18 + 4p<br> d. 17 + 3d + 3p
    15·2 answers
  • Apply the distributive property to: 2(6*+4)
    11·1 answer
  • What is the length of FG?
    5·1 answer
  • Question 9
    6·1 answer
  • Rich bought 5 cupcakes and one pie. He knows his total bill is $13.14 and knows the pie was
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!