The student wrote the wrong operation. "The sum of 5y and 3" translates to 5y+3. And here means addition.
Xy=20 As the width gets smaller, the length should get larger.
Answer:
There are 120 1st graders at Sierra Elementary School this year
Step-by-step explanation:
Let n represent the total number of 1st graders at Sierra Elementary School
Since 45% of all 1st graders at Sierra Elementary School are female students and this year there are 54 female 1st graders, 45% of n is equal to 54
→ n(
) = 54
→ 45n = 5400
→ n = 120
Please find the attachment below for the solution...
As, v=√2as
Squaring both sides,
v²=2as
∴ s= v²/2a