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k123loveme
25.09.2019 •
Mathematics
Martina is 3 inches less than twice as tall as her little brother . write an expression for martina’s height . how tall is martina if her little brother is 28 inches tall?
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Ответ:
Expression: 2x-3
Martina's height if her little brother is 28 inches: 53 inches
Step-by-step explanation:
To write the expression, first read the problem. Martina is twice as tall as her little brother, minus 3. If x represents Martina's little brother's height, the equation will be 2x-3, since she's 3 inches shorter than twice the height of her little brother.
The question says that her little brother is 28 inches tall. Since x represents Martina's little brother's height, simply plug x into our expression.
2x-3
2(28)-3
56-3
53
Therefore, if Martina's little brother was 28 inches tall, Martina would be 53 inches tall. i hope this helps! :)
Ответ:
shere is the figure
Step-by-step explanation: