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Anon25 [30]
3 years ago
6

You are drawing a map of your school and want to make sure all the measurements are accurate. You decide to use a scale of 1 cm

= 3 feet. In your drawing, the main hallway ends up being 20 cm long.
The drawing is a little too big so you decide to change the scale to 1 cm = 4 feet.

Keeping the length in feet the same, how many centimeters long should the main hallway be in your new drawing?
Mathematics
1 answer:
zloy xaker [14]3 years ago
7 0

Answer:

5

Step-by-step explanation:

ID.K if I am right, tell me

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The graphs of the lines 2 x + 4 y = 0 and 2 x + y = 10 intersect in a point. What is the x-coordinate of that point?
stira [4]

Answer:

\frac{20}{3}

Step-by-step explanation:

we have  : lines 2 x + 4 y = 0 and 2 x + y = 10

   Let ,

2 x + 4 y = 0............. (1)

2 x + y = 10...............(2)

solve these equations for x and y

Now subtract (2)  from (1) ,we get

3y=-10

⇒y = \frac{-10}{3}

Put the value of y in (1) , we get

2x+4(\frac{-10}{3}) = 0

⇒2x= \frac{40}{3}

⇒x=\frac{20}{3}

∴ Point  of intersection is (\frac{20}{3},\frac{-10}{3} ).

Hence,the x-coordinate of that point is \frac{20}{3}.

8 0
3 years ago
Show work, for extra Brainly, elementary work, multiplying unit fractions by whole numbers
Wewaii [24]

Answer:

2 1/4

Step-by-step explanation:

Number 1 is incorrect because 1/4 x 9 is 2 1/4 not 1 1/4.

To multiply fractions, multiply directly across. So multiply 1/4 x 9/1 to get 9/4 which converted into a mixed number is 2 1/4.

5 0
2 years ago
Help with picture down below
guajiro [1.7K]
I hope this helps you



5) 14v+6=10+14v-4

14v+6=14v+6

0=0

6) 5+2n+2=2n

2n+7=2n

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4 0
3 years ago
Carol invests $6250 at a rate of 2% per year simple interest.
zlopas [31]

Answer:

Your answer is 6625.

Step-by-step explanation:

Your equation would be 6250 x 0.02 x 3.

6250 being the original amount.

0.02 being the percent

3 being the length of time

7 0
3 years ago
7 1/2 divided by 1 2/3
Rina8888 [55]

Answer:

5

Step-by-step explanation:

6 0
3 years ago
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