Respuesta :
Step-by-step explanation:
Sally mass = 70 kilograms
Dave mass = 170 pounds ≈ 77 kilograms
Sally's mass as a percentage of Dave's mass = (70/77)x100
Sally's mass as a percentage of Dave's mass ≈ 91 %
Answer:
91%.
Step-by-step explanation:
We have been given that Sally has a mass of 70 kilograms and Dave weighs 170 pounds.
First of all, we will convert Sally's weight into pounds by multiplying 70 by 2.205 as:
[tex]\text{Sally's weight into lb}=70\times 2.205[/tex]
[tex]\text{Sally's weight into lb}=154.35[/tex]
Now, we will find 154.35 is what percent of 170 as:
[tex]\frac{154.35}{170}\times 100[/tex]
[tex]0.90794\times 100=90.794\%\approx 91\%[/tex]
Therefore, Sally's weight is approximately 91% of Dave's weight.