kevin1982 kevin1982

22-01-2021
Mathematics

contestada

Fiona was thinking of a number. Fiona doubles it and adds 5.1 to get an answer of 11.5.
what is the answer?

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evelynimafidon10 evelynimafidon10

22-01-2021

Answer:

3•2

Step-by-step explanation:

let X be the unknown number

X × 2 = 2x

2x + 5•1 = 11•5

2x = 11•5 - 5•1

2x = 6•4

divide both sides by 2

X = 3•2

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