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
Oksanka [162]
3 years ago
8

You can trim the grass using a lawnmower at a rate of 80 square feet per minute. You can use a string trimmer at a rate of 20 sq

uare feet per minute. The yard has an area of 2800 square feet. If you use the trimmer for 20 minutes, how many minutes will you use the lawnmower?
a 60
b 80
c 50
d 30
Mathematics
1 answer:
docker41 [41]3 years ago
5 0
So first its 20 x 20 which is 400 so then the lawnmower does 80 per min so 80 x 5 and u get 400

You might be interested in
Margo is creating a pencil caddy in the shape of a triangular prism. She is determining how much wood she needs to build the cad
natka813 [3]

Answer:

a little late

205 1/5 is your answer

Step-by-step explanation:

break down the 3-D figure

Find area of triangle A=1/2bh

=1/2(8 inch)(6   9/10inch)

=1/2(8 inch)(69/10 inch)

=138/5 square inch

then multiply two because you have 2 triangles

=138/5 (2)  

= 276/5 square inch

= 55 1/5 sq.in

Find area of rectangle

A = lw

=6 1/4 in (8 in)

= 25/4 (8 in.)

= 50 sq. in.

then multiply by 3 because of the three rectangles

= 50 sq. inch (3)

= 150 sq. in.

Add all together

55 1/5 sq. inch + 150 sq. inch = 205 1/5 sq. inch

4 0
3 years ago
PLEASE HELPPPPPPPPPPPPPPPP
iogann1982 [59]

Answer:

Our radius is already given, 8.

8 x 3.14 x 2 = 50.24cm <-------- perimeter/circumference

8^2 x 3.14

64 x 3.14 = 200.96cm2 <------- area

Formula of a circumference:

2πr

2 x pie x radius (pie can be used as 22/7 or 3/4 most likely 3.14)

Formula of an area of a Circle:

πr^2

pie x radius squared (pie can be used as 22/7 or 3.14)

6 0
3 years ago
Which line has a slope of 1 and a y-intercept of 2?
Vedmedyk [2.9K]

Answer:

bottom left :)

Step-by-step explanation:

3 0
3 years ago
Evaluate each expression when n = 4 and b = 7
alexgriva [62]

Answer:

1. 5  2. 31  3. 55

Step-by-step explanation:

1. 2(4)-3=8-3=5

2. 4(7)+3=28+3=31

3. 3(4)+8(7)-13=12+56-13=56-1=55

4 0
3 years ago
Read 2 more answers
Solve the inequality 3 -2a &gt; 7
Paul [167]
3 - 2a > 7
We need to solve for a

First, let's subtract 3 on both sides to have the variables on a side and the numbers on another side:
3 - 2a > 7
3 - 2a - 3 > 7 - 3
- 2a > 4

Let's divide both sides by -2 to have a on side and its value on the other side:
-2a > 4
(-2a)/(-2) > (4/-2)
a < -2 (In a case of an inequality, we change the sign when we divide by a negative number to its opposite).

So 3 - 2a > 7 when a < -2 (answer c)

Hope this helps! :D

3 0
3 years ago
Read 2 more answers
Other questions:
  • I have been stuck on this for days someone pls help!!!!
    9·1 answer
  • the radius of a circle with an area of a circle with an area of 60 square centimeters is represented by the expression sqrt 60/x
    12·1 answer
  • Expand it <br> (2/7z -3/5x)2
    5·1 answer
  • In a survey, 27% of the people chose salads over a meat dish. In all, 81 people chose salads. How many people were the survey?
    8·1 answer
  • Which ordered pair is not a solution to the equation y = 2x?
    15·1 answer
  • 20 points &amp; Brainliest to the one who gets ALL of them correct! NEED HELP ASAP!!! Due today!!!
    12·2 answers
  • I need the quartiles, and the medians of this graph!
    8·1 answer
  • Question 25. A segment of a circle is the portion formed by the sector and 4 points
    9·2 answers
  • Which quadrilaterals have diagonals that are perpendicular?
    7·1 answer
  • Given f(x)=4/5x + 13, find the inverse f-¹(x)<br>Given f(x)= 3/x+10 + 4 find the inverse f-¹(x)​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!