Hello,
Hayley had 3.93 grams of salt. She added more salt to the sample and now has 4.87 grams. How many grams of salt did Hayley add?
2 answers:
You might be interested in
Answer:
2nd option
Step-by-step explanation:
r + 1 = 23 ( subtract 1 from both sides )
r = 22 ( multiply both sides by 3 to clear the fraction )
r = 66 ( divide both sides by
)
r = ×
( rationalising the denominator )
r = = 33