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eduard
3 years ago
14

How does 30/15 equal 2/1?

Mathematics
1 answer:
IgorC [24]3 years ago
4 0
2/1 is 2 divided by 1 and 30/15 is 30 divided by 15. Both are equal to 2.
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Miguel has triple David's money, while Lisbeth has ten dollars less than David. The sum of their money totals $95. How much mone
ahrayia [7]

Answer:

Miguel has $63

Lisbeth has $11

David has $21

Step-by-step explanation:

let Miguel share be M

let Lisbeth share be L

let David share be D

from the question, we know that

M=3D

L=D-10.

M+L+D=95

thus,

3D+(D-10)+D= 95

3D+D-10+D= 95

5D-10 = 95

5D= 95+10

5D= 105

D= 105/5

D= 21.

thus,

M = 3D = 3×21

= $63

L = D-10 = 21-10

= $11

(63+21+11)$ = $95

3 0
3 years ago
Please help me please!
Mumz [18]

Step-by-step explanation:

a,b) you can place all 17 in the middle and both circle will have 17 each. then remove 2 and place one each on separate sides. you can do this 8 times so that at the you'll end up with 1 in the middle and 8 each on separate sides.

the ways to do is then 9.

7 0
2 years ago
Ruben bought 6 new books for his collection. This increased his collection by 12%. How many books did he have before his purchas
Norma-Jean [14]

Answer:  The required number of books that Ruben had before purchases is 50.

Step-by-step explanation:  Given that Ruben bought 6 new books for his collection that increased his collection by 12%.

We are to find the number of books that Ruben had before purchases.

Let x denotes the number of books that Ruben had before purchases.

Then, according to the given information, we have

x+6=x+12\%\times x\\\\\\\Rightarrow 6=\dfrac{12}{100}x\\\\\\\Rightarrow 6=\dfrac{3x}{25}\\\\\\\Rightarrow 3x=150\\\\\Rightarrow x=\dfrac{150}{3}\\\\\Rightarrow x=50.

Thus, the required number of books that Ruben had before purchases is 50.

4 0
3 years ago
Jimmy is cutting old rope to make homemade rugs. Each rug has long pieces and short pieces. Complete questions 1011.
Svetllana [295]

Answer:

long pieces 126 Short pieces 21

Step-by-step explanation:

18+18+18+18+18+18+18=126

3+3+3+3+3+3+3=21

hope this helped <3

3 0
3 years ago
I feel like crying! why is math so hard???
Sladkaya [172]

Answer:

honestly wish math would just jump off the planet with that fancy ole brown necklace we call a rope.

4 0
3 years ago
Read 2 more answers
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