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Pie
3 years ago
6

Wilma can mow a lawn in 60 minutes. Melissa can mow the same lawn in 30 minutes. How long does it take for both Wilma and Meliss

a to mow the lawn if they are working together?
Mathematics
2 answers:
nevsk [136]3 years ago
6 0
It is 30 mins because they split the work and the 60 min will be 30 and the 30 min girl would be 15
vichka [17]3 years ago
3 0

Answer:

45

Step-by-step explanation:

60 and half of 60 is 30 and half of 30 is 15 so 30 +15 is 45

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inn [45]
We are given with the probabilities P(pepperoni) = 0.7, P(olives) = 0.6, and P(pepperoni or <span>olives) = 0.8. in this case, we are asked to determine  P(pepperoni and olives) that is determined from P(pepperoni) + P(olives) - P(pepperoni or olives) equal then to 0.7 + 0.6 - 0.8 equal to 0.5</span>
7 0
3 years ago
An equilateral triangle has a perimeter of 48 cm. What is the area?
KiRa [710]

Answer:

A=64\sqrt{3}\ cm^2

Step-by-step explanation:

we know that

An <u><em>equilateral triangle</em></u> has three equal sides and three equal interior angles (each interior angle measure 60 degrees)

so

The perimeter is equal to

P=3b

where

b is the length side of the equilateral triangle

we have

P=48\ cm

substitute

48=3b

solve for b

b=48/3\\b=16\ cm

Find the area

The formula of area applying the law of sines is equal to

A=\frac{1}{2}b^2sin(60^o)

substitute the value of b

A=\frac{1}{2}(16)^2sin(60^o)

sin(60^o)=\frac{\sqrt{3}}{2}

A=\frac{1}{2}(16)^2(\frac{\sqrt{3}}{2})

A=64\sqrt{3}\ cm^2

6 0
3 years ago
Sanam eats 5 almonds daily. How many almonds does she eat in 157 days?​
Ede4ka [16]

Answer:

785 almonds

Step-by-step explanation:

157 x 5 = 785

8 0
2 years ago
A dot plot titled hours of practice this week going from 0 to 4. 0 has 1 dot, 1 has 2 dots, 2 has 0 dots, 3 has 4 dots, and 4 ha
WITCHER [35]

Answer:

1, 2, 3, 5

Step-by-step explanation:

I took the quiz

4 0
3 years ago
-56z+28 is equal to what?
Svetlanka [38]

Answer:

Factor  − 28  out of  − 56 z + 28 .

answer = − 28 ( 2 z  −  1 )

Step-by-step explanation:

Hope this helps! Have a great day!

8 0
3 years ago
Read 2 more answers
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