Respuesta :
A meter is 100 cm. A ball of string has 10m of string, and you multiply 10m by 100cm, you get 1,000cm. Then you multiply 40cm by 2, and you get 80cm, or two lengths of string. Then you multiply 35, which is half of 70, by 80, and that is 2,800 cm.
2,800÷40cm=70
And 100cm=1m.
The teacher will therefore need 28 balls of string.
2,800÷40cm=70
And 100cm=1m.
The teacher will therefore need 28 balls of string.
The balls need for the given question is 28.
Given-
Total required string is 70.
The length of the required string is 40 cm.
The length of the ball of string is 10 m.
Convert the length of ball in centimetre from meter. We know that one meter has hundred centimetres. Thus ten meters is,
[tex]=10\times 100[/tex]
[tex]=1000[/tex]
Hence the length of the ball of string is 1000 cm.
Now the string is cut thus we need two lengths of string. Therefore,
[tex]=40\times 2[/tex]
[tex]=80[/tex]
Two length of string is 80 cm.
Now this is the half times the lengths of the seventy. Thus,
[tex]=\dfrac{70}{2} \times{80}[/tex]
[tex]=2800[/tex]
For this 2800 cm string we need 1000 cm string balls [tex]n[/tex] are,
[tex]n=\dfrac{2800}{1000}[/tex]
[tex]n=28[/tex]
Hence, the balls need for the given question is 28.
For more about the units follow the link below-
https://brainly.com/question/15602440
