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Gekata [30.6K]
3 years ago
6

Jack can paint 1 house in 3 days. Find Jack’s rate per day for painting houses.

Mathematics
2 answers:
Eduardwww [97]3 years ago
6 0

Answer:

Jack can paint a certain room in 3 hours, lisa is 4 hours, and sue in 2 hours. ... Jack's rate is one-third of a job per hour, Lisa's is one-fourth of a job per hour and Sue's is one-half of a job per hour. If they all work together for t hours, one whole job is completed. t/3 + t/4 + t/2 = 1 .

Step-by-step explanation:

fomenos3 years ago
3 0

Answer:

ok so hwo u do it it is 1/3 because ur finding rate thsi will help u get ur answer which is 0.333333 ex btu simplfed 0.33

Step-by-step explanation:

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Find the length of the unknown side . round your answer to the nearest tenth
katovenus [111]

Answer:

20cm or A

Step-by-step explanation:

pythagorean theorem

25^2=15^2+b^2

625=225+b^2

b^2=400

b=20

3 0
2 years ago
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Consider vectors u and v, where u = (1, -1) and v = (1, 1). What is the measure of the angle between the vectors?
7nadin3 [17]

Answer:

I believe the answer is C. 90 degrees

Step-by-step explanation:

First you find the lengths of the two vectors, which are both \sqrt{2}. Then you find the angle given the cos using:   cos(∅)=\frac{u*v}{|u|*|v|} = \frac{0}{\sqrt{2}*\sqrt{2}  } = 0. Then using ∅=acos(0)=\frac{\pi }{2} = 90°

6 0
3 years ago
Read 2 more answers
Nora got an allowance of 50¢ each weekday and 75¢ each weekend altogether how much do they get in:
Furkat [3]
A) > since it is 50c per weekday and 75c each weekend assuming it allows for the 2 days each saturday/sunday.
50c * 5 = $2.50 since there are 5 days in weekdays
75c * 2 = $1.50 since there are 2 days in the weekend
Add $2.50 and $1.50 to get $4.00

b) For 3 school days we know it is a weekday on the school week.
So perform 50c * 3 which gives us <span>$1.50

</span>c) 12 days off from school is 10 weekdays and 1 weekend or 2 days of 75c
So now just do 50c * 10 which is $5.00 and 75c * 2 which is $1.50
Add $5.00 and $1.50 and we get $6.50

d) 4 weeks = 20 weekdays since 5 *4 = 20 and 8 days in each weekend since 2 * 4 = 8
Now that we have the amount of weekdays and weekend days we can multiply.
50c * 20 = $10.00
75c * 4 = $3.00
Add $10.00 and $3.00 to get $13.00 for 4 weeks.

e) We have 1 day of the weekend and 2 weekdays here.
50c * 2 = $1.00
75c * 1 = 75c
<span>$1.00 + 75c = $1.75 in those 3 days listed.
</span>
Add all these together to get your total value.
$4.00 + $1.50 + $6.50 + $13.00 + $1.75 = $26.75

7 0
3 years ago
A. 155<br> B. 163 1/2<br> C. 123<br> D. 122<br> E. 122 1/2<br> F. 130
Lesechka [4]
I think D but don’t take my word for it
5 0
3 years ago
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Gretchen earns extra money mowing lawns on the weekend. She mows 3 lawns per hour and earns $12.00 per lawn. How much does Gretc
stepladder [879]

Gretchen will earn $48 from mowing in 4 hours

Data

  • Amount earned on each lawn = $12
  • Number of hours mowing = 4 hours

<h3>What is Rate</h3>

This is the measure of one unit against another unit. An example of this is speed which is the rate of distance covered to time.

In this case, she mows 1 lawn in each hour and earns $12 on each.

To calculate for 4 hours

4*12=$48

She earns $48 from mowing 4 lawns

learn more on rates here;

brainly.com/question/8728504

4 0
2 years ago
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