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
Whitepunk [10]
2 years ago
10

The length of rectangular picture is 3 times as long as the width. If the area of the picture is 147 square inches, find the len

gth and width of the picture.
Mathematics
1 answer:
SIZIF [17.4K]2 years ago
8 0

Answer:

l= 21 w=7

Step-by-step explanation:

l=3w

147=(3w)×w

147=3w^2

49=w^2

7=w

so now we have w=7. Plug that in to find l...

l=3w

l=3×7

l=21

You might be interested in
Solve the equation 1/4a=3
Tanzania [10]

Answer:

a= 12

Step-by-step explanation:

(1/4)*a = 3 // - 3

(1/4)*a-3 = 0

1/4*a-3 = 0 // + 3

1/4*a = 3 // : 1/4

a = 3/1/4

a = 12

3 0
2 years ago
Which would be the better buy 5 gallon bucket of paint for $97.45 or 1 gallon bucket of paint for $21.95
Leviafan [203]

Answer:

5 gallons for 97.45

Step-by-step explanation:

5x21.95=109.75 which is more

3 0
3 years ago
I will give crown<br>I need help show work DON'T ANSWER IF YOU DON'T KNOW
mr_godi [17]
Starry Crown charges (138 dollars)/(4 hours) = (138/4 dollars)/hour = (34.50 dollars)/hour

Solar R Us charges (143 dollars)/(5 hours) = (143/5 dollars)/hour = (28.60 dollars)/hour

Lights On Us charged (157 dollars)/(6 hours) = (157/6 dollars)/hour = (27.17 dollars)/hour

Lights On Us has the best rate.
4 0
2 years ago
Last one I promise plz help
yuradex [85]

Answers:

Perimeter = 58.5 centimeters

Area = 163.15 square centimeters

===============================================

Explanations:

To get the perimeter, you add up the three exterior (aka outer) sides. So you add up everything but the length measuring 13 cm, as this segment is not on the outside of the triangle. Imagine this is a parking lot and you want to put fencing around the outer sides. You won't build any fencing to run through the middle of the lot (assuming you don't want to subdivide)

So we add up 15.4, 18 and 25.1 to get 15.4+18+25.1 = 58.5 centimeters. The units stay at centimeters. We don't go to "square centimeters" like we do with the area below.

------------

To get the area of the largest triangle, we multiply the base and height, then divide by 2. The base is always perpendicular to the height

base = 25.1

height = 13

area = base*height/2 = 25.1*13/2 = 163.15 square cm

You write "square" before the "cm" to indicate the proper units for the area. Think of a 1 cm by 1 cm rectangle which has area of 1*1 = 1 square cm. This idea applies to triangles as well because we can subdivide the triangle into smaller squares, or you can move one piece of a triangle to another side to reshape the figure into a rectangle.

4 0
3 years ago
2x + y = 7
jolli1 [7]

Answer:

(2/3, 17/3)

Step-by-step explanation:

put x and y coordinates value in given equation to check equality. it equality holds that's the coordinates we are looking for.

here 2nd coordinate holds the equality

6 0
3 years ago
Other questions:
  • To which subset(s) does the negative square root of 25 belong? choose all that apply
    5·2 answers
  • Simplify:(5x)(3x)<br> Please help
    9·2 answers
  • Does anyone know what the answer to this is ?
    9·1 answer
  • Billy takes two tests in his probability and statistics class. The probability that Billy would pass at least one test is 0.9. T
    15·1 answer
  • In standard notation 208.06 is written as
    15·1 answer
  • Help please!!!!!!!!
    13·1 answer
  • 1. 9(h+7) = -12h<br> solve for h<br> h=
    5·1 answer
  • What is the solution to this inequality?<br><br> 14 + x ≤ 26
    15·2 answers
  • A building that is 90 feet tall cast a shadow 30 feet long what is the angle of elevation of the sun
    11·1 answer
  • 85°<br> 152<br><br> Find the value of the missing angle
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!