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Sedaia [141]
3 years ago
8

On a map, the scale shown is 1 inch : 3 miles. If an island is 0.5 square inches on the map, what is the actual area of the isla

nd?

Mathematics
1 answer:
gtnhenbr [62]3 years ago
4 0

Answer:

4.5

Step-by-step explanation:

First we need to turn the ratio of 1 : 3 into a fraction

1:3 = 1/3

Next we need to square that fraction

1 x 1 = 1

3 x 3 = 9

Then we turn those numbers into a fraction

1/9

We turn the .5 into a fraction

.5/x

And cross multiply both fraction by each other

1/9 x .5/x

1 x X = X

9 x .5 = 4.5

So

4.5 = X

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50.3

Step-by-step explanation:

Volume = pi * h * r^2   *** Diameter = 2 * radius

<em>Substitute</em>

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3 years ago
Explain how you would factor the following equation: f(x) = xy - 5y - 2x + 10
Levart [38]

xy - 5y - 2x + 10 \\ y(x - 5) - 2(x - 5) \\  (x - 5)(y - 2)

So, F(X) = ( X - 5 ) ( Y - 2 )

When you wanna factor out some equation, try to spot things that are similar. Factoring is always a process of trial and error, but as you get more experience it will just get easier.

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3 0
3 years ago
I need help with these
3241004551 [841]

1. a= 60 (vertically opposite angles)

b= 360-(60+60)=240/2= 120 (angles at a point)

c= 120 (vertically opposite angles with b)

2. c= 90-40= 50 (vertically opposite angles)

b=a=360-90-90=180/2=90 (angles at a point)

3. a= 180-52-51= 77 (angles on a straight line)

b=52 (angles at a point)

d=51 (angles at a point)

c=77 (angles at a point)

4. a= 60 (vertically opposite angles)

b= 360-(60+60)=240/2= 120 (angles at a point)

c= 120 (vertically opposite angles with b)

e=65

d=f= 360-65-65=230/2=115

h=55

i=g=360-55-55=250/2=125

5. b=163

a=90

e=70

d=360-70-70=220/2=110

c=360-163-163=34/2=17

Hope this helps!

4 0
3 years ago
Kara bought a gift for her nephew. She spent $25 on the gift. Sales tax was 6.75%. What was the total cost for the gift , includ
inn [45]

Answer:

31$ and 75 cents

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
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