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 answer!
Xelga [282]

Amswer

it is b Step-by-step explanation:

8 0
2 years ago
A person who weighs 100 pounds on Earth weighs 16.6 lb. on the moon.
mario62 [17]

Answer:

See explanation below.

Step-by-step explanation:

Given: 100 lbs on Earth is 16.6 lbs on the moon.

a. The independent variable is weight. The gravity of the Moon and the gravity of the Earth are constant. Weight can change, but gravity is a constant.

b. An equation that relates the weight of someone on the Moon who travels to the Earth:

100 / 16.6 = 6.02. Take the Moon weight and multiply by 6.02:

Moon Weight * 6.02 = Earth Weight.

Proof:

16.6 * 6.024 = 99.99 - approximately 100 lbs Earth weight.

c. A 185 lb astronaut on Earth would weigh:

16.6 / 100 = .166. Take the Earth weight and multiply by .166:

185 * .166 = 30 lbs on the Moon.

d. A person who weighs 50 lbs on the Moon:

50 * 6.024 = 301.2 lbs on Earth.

Hope this helps! Have an Awesome Day! :-)

6 0
3 years ago
Hello can someone please help me with this.
Zolol [24]

Answer:

if there is equivalent ratio cookies should be 48

3 0
3 years ago
Find the equation of the linear function represented by the table below in slope-intercept form.
Lostsunrise [7]
1/2 37373722828292837372829191
5 0
2 years ago
the blueprint for landscaping a yard has a scale of 1/2" to1 foot. if the blueprint is a rectangle 18 inches by 22 inches,what a
bazaltina [42]
If one foot in real is 1/2 inches, then 1 inch in a blueprint is 2 feet. So a rectangle 18 by 22 inches will represent 18 * 2 by 22 * 2 feet in real. So the size of the yard is 36 by 44 feet.
7 0
3 years ago
Other questions:
  • Consider a picnic. If you want to buy enough hot dogs and buns without having any left over, you need to balance the number of p
    12·1 answer
  • A saleswoman earns 5% commission on all the merchandise that she sells. Last month she sold $9000 worth of merchandise. How much
    5·2 answers
  • liz is going on a trip and needs to save money. she currently has $300 in her bank account and she plans to save $50 each payche
    14·1 answer
  • Gina brought 6 containers of yogurt for $4.how many of yogurt could Gina buy for $12
    11·2 answers
  • How does this app work?<br>​
    8·2 answers
  • I need help wiht math
    5·1 answer
  • A simple random sample is drawn from a normally distributed population. The value of which of the following will not
    12·1 answer
  • Notebooks cost $1.20 each. This weekend they will be on sale for $0.80. What percentage is the sale?
    9·1 answer
  • Can someone help please
    14·1 answer
  • What is the value of areas of triangles if height is 12 m and base is 6m ?​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!