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alexandr1967 [171]
3 years ago
13

Ted can mow the lawn in 5 minutes by using his power mower. Galen takes 15 minutes to mow the same lawn using a push-type mower.

How many minutes would the job take if the two boys worked together? If t is the time working together, which of the following expressions represents the portion of the job that Ted will complete when the guys work together?
Mathematics
2 answers:
Nikitich [7]3 years ago
7 0

Answer:

t/5

Step-by-step explanation:

i just answered the question and got it right.

EastWind [94]3 years ago
6 0
    We need to calculate a TIME.  Here, TIME = job / rate

Here, 

             1 JOB                                      1                 1
------------------------------------- = ------------------ = ---------------
   JOB/5 min + JOB/15 min           1/5 + 1/15     3/15+1/15
           1
= ------------ minutes = 15/4 minutes = 3 3/4 minutes (answer)
          4/15
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What is the estimate for 167
Kitty [74]

Answer:

170

Step-by-step explanation:

unless you are rounding to the hundred and it would be 200

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3 years ago
Ben claims that the points (2. 4), (4, 8) and (8, 12) tie on a line. Show that Ben is incorrect.
NeX [460]
Find the slope(s) twice, first the slope of the line connecting (2,4) and (4,8) and then the slope of the line connecting (2,4) and (8,12).  If you get different slopes, then it'd be safe for you to conclude that the points do not lie on the same line.

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3 years ago
2.4m log is cut into lengths into the ratio 7 : 5. Find the longer length in cm.
sergeinik [125]

Answer:

140 centimeters.

Step-by-step explanation:

Hello!

A 2.4 meter log is split into the ratio 7:5. Each unit part is one x-increment, so the log is split into 7 x-increments and 5 x-increments.

Find the longer length:

  • 2.4 into 7:5
  • 2.4 = 7x + 5x
  • 2.4 = 12x
  • x = 2.4/12
  • x = 0.2

Now, we must find the longer length, 7x.

  • 7x
  • 7(0.2)
  • 1.4

The longer length is 1.4 meters, but we want it in cm.

There are 100 centimeters in a meter.

  • 1.4 meters = 1.4 * 100
  • 1.4 meters = 140 centimeters

The longer length is 140 centimeters.

7 0
1 year ago
Antonio made a scale model of a building the most models scale is 1 inch to 235 feet and its height is 3.5 inches what is the ex
Natali [406]
The correct answer is 822.5 feet
5 0
2 years ago
First one to Answer it correctly gets 5 stars :)
faust18 [17]

Answer:

im not the best but i think 200 or 400 m

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
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