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valentinak56 [21]
3 years ago
6

Can some please explain and solve how to do these unit rate equations?

Mathematics
1 answer:
Sedaia [141]3 years ago
8 0
(1) 20:4=5:1. 80:16 16 weeks since he’s doing 5per week, and 80 divided by 5 is 16.

(2) 6:3=2:1. 10:5 It will take 5 hours because she’s walking 2km per hour, so it would take 5 hours to walk 10km.

(3) 1:20 4:80 It will take 80 minutes because 20x4=80

(4) 1:1 20:20 it will take her 20 days since she makes one craft a day and she’s making 20.

(5) 12:1 84:7 84 cakes since there is 7 days in a week. 12x7=84

If you still need help, here’s the answers
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A baseball has a 15 cm diameter what is the voulme of the contents of the ball
ddd [48]

Answer:

The answer is 1767.15cm^3

Step-by-step explanation:

The formula for finding the volume of a spherical object is 4/3(π)(r^3),where r is the radius of the object. But here only the diameter was given. And diameter=2(r), where r is radius.

So to find the radius, divide the diameter by 2. Since by making r the subject of the equation you get r=diameter/2.

Using the formula

4/3(π)(r^3)=(4π((15/2)^3))/3

=(4π(7.5^3)/3

=(4π(421.875))/3

Since π is 3.141592654

(4π(421.875))/3=1/3(4(3.141592654)(421.875))

=1/3(5301.437603)

=1767.145868

But I rounded off the answer to 2 decimal places and so I got 1767.14

7 0
3 years ago
How many minutes does it take the duck to fly 1 kilometer?
sashaice [31]

Answer:

4

Step-by-step explanation:

In 3 mintues the duck goes 12 kilometers. 12 divided by 3 is 4. I take 1 mintues to go 4 kilometers.

3 0
2 years ago
If fg + gh = fh,which of the following statements must be true?
Oksanka [162]
The only safe conclusion is that point G lies on line FH or that point G lies somewhere between line FH. We cannot conclude that point G is the midpoint of line FH eventhough by virtue of definition of midpoint, the given equation is a proof equation. If G were to be midpoint, segment FG must be equal to segment GH in line FH. 
5 0
3 years ago
Drag an answer to each box to complete this paragraph proof.
Alexxx [7]

1st box:

m<A + m<B + m<C = 180


2nd box:

substitution property


3rd box:

division property of equality


Hope it helps.

8 0
4 years ago
Read 2 more answers
3x- 5=1 what does x represent
V125BC [204]

Answer:

x=2

Step-by-step explanation:

3x=5+1

3x=6

x=6/3

x=2

8 0
3 years ago
Read 2 more answers
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