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
USPshnik [31]
2 years ago
9

Roger can shovel his family's driveway in 1 hour. His older sister, Alexis, can shovel the driveway in 1/2 hour. If they work to

gether, then how many minutes will it take them to shovel the driveway?
Mathematics
2 answers:
sukhopar [10]2 years ago
8 0

Answer:

40 min

Step-by-step explanation:

his sister can do it twice as fast so the boy does 1 and the sister does 2. he will do 1/3 of the work and it will take 1/3 of the time

eduard2 years ago
4 0

Answer:

90 mins

Step-by-step explanation:

1 hour =60 mins

1/2 hour = 60/2=30

so, 60 +30=90

You might be interested in
Jack had 33 bags of golf balls with bb balls in each bag; then his friend gave him 66 more golf balls.
Jlenok [28]
There are 99 gold balls
7 0
3 years ago
Read 2 more answers
(10 POINTS) answer ASAP if you can
erma4kov [3.2K]

Answer:

D

Step-by-step explanation:

Because it's 340 meters per second

5 0
3 years ago
Work out m and c for the line: ? y = x + 6​
lapo4ka [179]
Well your c value is already there (6) as the standard equation for a line is
y = mx + c

To find the gradient (M) plot two points on the line.

Then label each co ordinate X1 and X2 and then Y1 and Y2

Then subtract your y1 from y2 and then x1 from x2.

For example :if your coordinates were (1,2) (3,4) you would do
4-2 and 3-1

These answers become your “changes” now do change in y / change in x

In terms of the Example you would do 2/2 which would be 1 and the M value would be 1

Hope that isn’t too confusing
7 0
3 years ago
If a,b,c are in arithmetic sequence then a = ...​
andriy [413]

Answer:

If a, b and c are in arithmetic progression, that means that a + c = 2b. So a + b, a + c and b + c are also in arithmetic progression.

This might help.

8 0
3 years ago
Read 2 more answers
Given that sin(30)=1/2 and cos(30)=(sqrt3)/2, use trigonometric identities to find the value of cot(30)
Anit [1.1K]

<u>Your question: </u>given that sin(30)=1/2 and cos(30)=(sqrt3)/2, use trigonometric identities to find the value of cot(30)

The correct answer would be D \sqrt{3}

5 0
3 years ago
Other questions:
  • Equivalent fraction on 9/24
    5·1 answer
  • Based on the graph, which statement could describe Janelle's trip home from school?
    7·2 answers
  • In a data set with a normal distribution, the mean is 59 and the standard deviation is 3.
    7·1 answer
  • This is two or more equations with common variables, also known as a linear system.
    5·1 answer
  • Santino bought a book for $23.54. The price of the book was $22. What was the sales-tax rate?
    8·2 answers
  • The lengths of two sides of a right triangle are given. Find the length of the third side. Round to the nearest tenth if necessa
    12·2 answers
  • three apples weigh about a pound. about how much would one apple cost ? (round to the nearest cent) (apples are $0.50 per pound)
    9·1 answer
  • What is the missing reason for line 3 in this proof? LZM
    9·1 answer
  • Is 5.111111111 rational
    15·2 answers
  • What is the value of m in the equation {m-án=16, when n = 8?<br> A 20<br> B 32<br> C 44<br> D 48
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!