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Mademuasel [1]
3 years ago
6

Which choice is equivalent to the fraction below 2/5

Mathematics
1 answer:
castortr0y [4]3 years ago
3 0

Answer:

I don't see your options. Here are 5 I came up with.

4/10, 6/15, 8/20, 10/25, 12/30 etc.

Hope this helps.

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The difference of two numbers, a and b, is 21. The difference of 5 times a and two times b is 18. What are the values of a and b
alexdok [17]
a-b=21 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ |\times (-2) \\
5a-2b=18 \\ \\
-2a+2b=-42 \\
\underline{5a-2b=18 \ \ \ \ \ \ \ } \\
5a-2a=18-42 \\ 3a=-24 \\
a=\frac{-24}{3} \\
a=-8 \\ \\
a-b=21 \\
-8-b=21 \\
-b=21+8 \\
-b=29 \\
b=-29

a=-8 and b=-29.
6 0
4 years ago
Read 2 more answers
In sakura’s garden, for every 5 red flowers, there are 10 yellow flowers. There are a total of 75 yellow and red flowers in her
Pachacha [2.7K]
The first thing we must do for this case is to define variables.
 We have then:
 x: number of red flowers
 y: number of yellow flowers.
 We write the system of equations:
 x + y = 75
 y = 2x
 Solving the system we have:
 x = 25
 y = 50
 Answer:
 
there are 25 red flowers in Sakura's garden
5 0
4 years ago
What’s 15 multiplied by 2/5 equals 6 in a division equation
Irina18 [472]

Answer:

6 / 15 = ?

Step-by-step explanation:

To put this in a division equation, you first need the total whivh is 6. So, to put this in a division equation it would look like 6 / 15 = ?

7 0
3 years ago
Which number is a rational number?
Mice21 [21]
Correct option would be B.

Explanation: A rational number is any integer, fraction, terminating decimal, or repeating decimal. Option B is a repeating decimal hence the .... at the end of the number.
(I think let me know if I’m wrong)
5 0
4 years ago
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A swimming pool is 20 feet wide and 40 feet long. If it is surrounded by a walkway of square tiles, each is 1 foot by 1 foot, ho
Lena [83]

Answer:

124 tiles

Step-by-step explanation:

2(20+40)

2(60)

120+4=124

5 0
3 years ago
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