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Vikentia [17]
3 years ago
8

A scale on a map shows that 2.52, 5 centimeters = 15 kilometers. What number of actual kilometers are represented by 17.5 centim

eters on the map?
Mathematics
1 answer:
LenKa [72]3 years ago
4 0
Hello!

You have to find what 1 centimeter is on the map

15 / 5 = 3

A centimeter is 3 kilometers

Multiply this by how many centimeters you are measuring on the map

3 * 17.5 = 52.5

The answer is 52.5 kilometers

Hope this helps!
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sana is senior to Mona by 18 years after 6 years.Sana will be twice as old as Mona. find Mona,s percentage​
Gwar [14]
Let
Present age of Sana = s
Present age of Mona = m


Sana is senior to Mona by 18 years
s=m+18............(1)

After 6 years
Sana will be = s+6
Mona will be = m+6
Then
Sana will be twice as old as Mona
(s+6)=2(m+6)
s+6=2m+12
s=2m+12-6
s=2m+6.............(2)
Put the value of s from (2) to (1)
2m+6=m+18
2m-m=18-6
m=12
Put the value of m in (1)
s=m+18
s=12+18
s=30



Present age of Sana = s = 30 years old
Present age of Mona = m = 12 years old
3 0
3 years ago
Factorise 4x^2-y^2 please help
kotegsom [21]

Answer:

(2x + y)(2x - y)

Step-by-step explanation:

1. Simplify the square 4x²:

(2x)² - y²

2. Apple the difference of two squares formula <em>x² - y² = (x + y)(x - y)</em>:

(2x + y)(2x - y)

hope this helps!

8 0
2 years ago
The poster I'm going to be buying to put all the pictures on is going to be 22 by 28. Each picture I will get is going to be 4 b
lora16 [44]

Answer:

640

Step-by-step explanation:

22 x 28 = 616

4 x 6 = 24

616 + 24 = 640 fit

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Separate 53 people into two groups so that the first group has 7 fewer than 4 times the number of people in the second group.
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There would be a group of 12 and a group of 41
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liberstina [14]

Answer: it is the one your cursor is on

Step-by-step explanation:

I just put it in a calculator and it showed me

6 0
3 years ago
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