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
umka21 [38]
3 years ago
14

The length of a rectangle is 7cm more than twice the width. When just the width is tripled, the perimeter of the resulting recta

ngle is 74cm. What are the original dimensions of the rectangle?
Mathematics
1 answer:
grin007 [14]3 years ago
8 0

Answer:

Length = 27cm

Width = 10cm

Step-by-step explanation:

Let the length of the rectangle be x

Let the width be y

If the length of a rectangle is 7cm more than twice the width, then;

x = 2y + 7

Since P = 2(x+y)

P = 2(2y+7+y)

P = 2(3y+7)

P = 6y+14

If the width is tripled, P = 74

74 = 6y+14

6y = 74-14

6y = 60

y = 10

Since x = 2y+ 7

x = 2(10) + 7

x= 20+7

x = 27

Hence the original dimension is 27cm by 10cm

You might be interested in
Please help<br> Solve this
svlad2 [7]

Answer:

28

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Nagayama writes one check for $459 to buy a lawnmower and another check for $32 to buy a hedge
sladkih [1.3K]

Answer:

565.24

Step-by-step explanation:

1056.24-459-32=565.24

4 0
2 years ago
Read 2 more answers
QUESTION 7.
Elan Coil [88]

The probability that exactly 4 of the selected adults believe in reincarnation is 5.184%, and the probability that all of the selected adults believe in reincarnation is 7.776%.

Given that based on a poll, 60% of adults believe in reincarnation, to determine, assuming that 5 adults are randomly selected, what is the probability that exactly 4 of the selected adults believe in reincarnation, and what is the probability that all of the selected adults believe in reincarnation, the following calculations must be performed:

  • 0.6 x 0.6 x 0.6 x 0.6 x 0.4 = X
  • 0.36 x 0.36 x 0.4 = X
  • 0.1296 x 0.4 = X
  • 0.05184 = X
  • 0.05184 x 100 = 5.184

  • 0.6 x 0.6 x 0.6 x 0.6 x 0.6 = X
  • 0.36 x 0.36 x 0.6 = X
  • 0.1296 x 0.6 = X
  • 0.07776 = X
  • 0.07776 x 100 = 7.776

Therefore, the probability that exactly 4 of the selected adults believe in reincarnation is 5.184%, and the probability that all of the selected adults believe in reincarnation is 7.776%.

Learn more in brainly.com/question/795909

5 0
2 years ago
Can people help me please to find the volume about question number 10 please and tell me the answer step by step please I need h
Alecsey [184]
#10
Volume of a cylinder: \pir²h

Plug the numbers in.

\pi3²15 = <span>424
</span>
The volume of the pipe is 424 cm³.
7 0
3 years ago
a stone is thrown downward with an intitial velocity of 29.5 m/sec will travel a distance of a meters, where s(t) = 4.9t^2 + 29.
Alenkinab [10]

Answer:

t = 9 s

Step-by-step explanation:

A stone is thrown downward with an intitial velocity of 29.5 m/sec will travel a distance of a meters, where

s(t) = -4.9t^2 + 29.4+132.3

We need to find when the stone will hit the ground. It means when s(t) = 0. So,

-4.9t^2 + 29.4t+132.3=0\\\\t=-3\ and\ t=9

So, the stone will take 9 seconds to hit the ground. Hence, this is the required solution.

5 0
2 years ago
Other questions:
  • plz help me suzy spent 6 7/8 days working on her English paper 3 1/6 days on her science project and 1 1/2 days studying for her
    13·1 answer
  • Find the amount of time to the nearest day it would take a deposit of $1300 to grow to 1 million at 17% compounded continuously.
    7·1 answer
  • Suppose you invest $2000 at an annual interest rate of 4.9% compounded continuously. How much will you have in the account after
    14·1 answer
  • PLZ HELP<br> ASAP <br> THANKS IN ADVANCED!!<br> :)
    10·2 answers
  • What is a equivalent expression for 5times v+6
    9·1 answer
  • Please give the answer and explain
    11·2 answers
  • Math Exit Slip: Value-Mart is having a back -to - school sale on pencils. A pack of of 20 sells for $7.97, whereas a 12-pack cos
    13·1 answer
  • Analyze the graph below to identify the key features of the logarithmic function.
    6·1 answer
  • PLEASE HELP AND TELL ME HOW YOU DID IT I HAVE TO SHOW work !! Jeans are on sale for 40% off the jeans Justin wants to buy them m
    5·1 answer
  • What would be the final
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!