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
pashok25 [27]
3 years ago
5

A rectangle has a width that is 7 centimeters less than its length, and its area is 330 square centimeters. What are

Mathematics
2 answers:
Shalnov [3]3 years ago
8 0

Answer:

w = 15 cm

l = 22 cm

Step-by-step explanation:

A = w·l

w = l - 7

A = (l - 7)·l

330 = l² - 7l

l² - 7l - 330 = 0

l² + 15l - 2l - 330 = 0

l(l + 15) - 22(l + 15) = 0

(l - 22)(l + 15) = 0

l - 22 = 0 => l = 22 cm

l + 15 = 0 => l = - 15 < 0 (f)

w = l - 7 = 22 - 7 => w = 15 cm

natali 33 [55]3 years ago
7 0

Answer:

22,15

Step-by-step explanation:

width = l-7

l*(l-7) =330

You might be interested in
245 500 1,010 2,030<br> The sequence above can be expressed
erma4kov [3.2K]

Answer:

12

Step by Step Explanation:

f(n+1) = 2f(n) + 10

a = 2, k = 10

a + k = 2 + 10 = 12

7 0
3 years ago
Read 2 more answers
A man invests his savings in two accounts, one paying 6% and the other paying 10% simple interest per year. He puts twice as muc
Masteriza [31]

Let x represent amount invested in the higher-yielding account.

We have been given that a man puts twice as much in the lower-yielding account because it is less risky. So amount invested in the lower-yielding account would be 2x.

We are also told that his annual interest is $6600 dollars. We know that annual interest for one year will be principal amount times interest rate.

I=Prt, where,

I = Amount of interest,

P = Principal amount,

r = Annual interest rate in decimal form,

t = Time in years.

We are told that interest rates are 6% and 10%.

6\%=\frac{6}{100}=0.06

10\%=\frac{10}{100}=0.10

Amount of interest earned from lower-yielding account: 2x(0.06)=0.12x.

Amount of interest earned from higher-yielding account: x(0.10)=0.10x.

0.12x+0.10x=6600

Let us solve for x.

0.22x=6600

\frac{0.22x}{0.22}=\frac{6600}{0.22}

x=30,000

Therefore, the man invested $30,000 at 10%.

Amount invested in the lower-yielding account would be 2x\Rightarrow 2(30,000)=60,000.

Therefore, the man invested $60,000 at 6%.

8 0
3 years ago
Convert 12midnight to 24h clock system ​
Leno4ka [110]

Answer:

exactly 12:00 midnight on a 24hour clock is represented as 00:00

5 0
1 year ago
20 POINTS!! <br> Which ordered pair is the solution to the system of equations?
marta [7]
Hello! I would love to help!

The answer is -10,-1

Basically, you have to fill -10 in for x and -1 in for y in each equation. If the equations are true, that is the right answer!


Hope this helped! Comment if you have questions!







8 0
3 years ago
While in France, Judy wants to sign up for a bike tour to see the countryside. She likes a tour that is 40 kilometers long, but
Sonja [21]

Answer:

24 miles

Step-by-step explanation:

In order to calculate Judy's estimation, we would simply have to multiply the actual distance in kilometers of the tour by the number of miles that Judy believes are in a single mile. This would give us Judy's estimation for how long the tour would be in miles.

40 km. * 0.6 miles = 24 miles

Finally, we can see that Judy's estimation would be that the tour is 24 miles long. Using Judy's believed conversion rate.

8 0
3 years ago
Other questions:
  • HELP PLS SIMPLE SIMPLESIMPLE
    7·2 answers
  • A rectangle is twice as long as it is <br> wide. Its perimeter is 30. What is its area?
    14·1 answer
  • Help with math pls pls pls
    11·1 answer
  • -5a-5b/a+b<br><br><br> need help now please!!!!
    14·1 answer
  • Problem answering <br> Question
    14·2 answers
  • a number is multiplied by 8 and that product is added to 2. The sum is equal to the product of 2 and 25 . Find the number
    13·1 answer
  • Place these real numbers in ascending order
    10·1 answer
  • Can some one solve 2 I’ll give a crown
    14·2 answers
  • Y=6x−7. Identify the x-intercept.
    5·2 answers
  • What is the solution of |2x+3|&lt; 19
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!