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Elza [17]
2 years ago
8

A chef can finish a catering job in 4hr. His student can do the same job in 12hr. How long will it take them both to do the job

if they work together
Mathematics
1 answer:
Arte-miy333 [17]2 years ago
4 0
12 divided by 4 equal 3
Ans:3hrs
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Which expression is equivalent to (5^(3))^(2)
yarga [219]

Answer:

Step-by-step explanation:

(a^{m} )^{n} = a^{mn}

(5^{3} )^{2} = 5^{3*2} = 5^{6} = 15,625

3 0
2 years ago
Suppose that 30% of all houses need a paint job. Also, 15% of all houses need both a paint job and a new roof. Further, 7% of al
ivann1987 [24]

Answer:

0.0105

Step-by-step explanation:

given that 30% of all houses need a paint job. Also, 15% of all houses need both a paint job and a new roof. Further, 7% of all houses that need a new roof also need new windows.

If total houses are 100, then 30 require a paint along.  15 require both paint and new roof.

Out of 15 houses which require new roof 7% need new windows

i.e. no of houses which need new windows = 15*7%\\=1.05

If there are total 100 houses, 1.05 houses require a new window

So probability that a randomly selectede house needs a new window

= 0.0105

8 0
2 years ago
Counting by 5s whats after 655
Reptile [31]

660 is the correct answer.  Hope this helped!

-TTL

5 0
3 years ago
Read 2 more answers
Solve -14-5y &gt;-64<br> A. Y&lt;10<br> B.y&gt;-10<br> C. Y&gt;10<br> D.y&lt;-10
amm1812

Hello :D

Answer:

A. Y

Step-by-step explanation:

First, you add by 14 both sides of an equation.

-14-5y+14>-64+14

Then, simplify by equation.

-64+14=-50

-5y>-50

Multiply -1 both sides.

(-5y)(-1)<(-50)(-1)

5y<50

Divide by 5 both sides of an equation.

5y/5<50/5

Divide numbers from left to right.

50/5=10

y<10 is the correct answer.

Hope this helps you! :D

6 0
3 years ago
The results of a survey indicate 50% of seventh-graders watch at least one movie
Kay [80]

Answer:

25 students

Step-by-step explanation:

50% of 50 is 25  

50/2 = 25

7 0
3 years ago
Read 2 more answers
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