<span>Anna learns in her science class that the human eye blinks an average of 4,200,000 times a year. What is this number expressed in scientific notation?</span>
Answer:
3d+5
Step-by-step explanation:
Say x is the difference
Solve for x.
6d+2−(3d−3)=x
Step 1: Flip the equation.
x=6d+2−(3d−3)
Step 2: Simplify
x=(6d-3d)+(2+3)
x=3d+5
142 meters
with all the mathy stuff i did the answer was 142 meters
The numbers are 3 and 18
Step-by-step explanation:
Step 1: Given details are sum of numbers = 21, let the numbers be x and y. Form equations out of the given details.
⇒ x + y = 21 ---- (1)
⇒ y = 6x --------- (2)
Step 2: Substitute (2) in (1)
⇒ x + 6x = 21
⇒7x = 21
⇒x = 3
- Step 3: Find the value of y using x
⇒ y = 6 × 3
⇒ y = 18
