<span>Twice a number is equal to negative four :
2n = -4
answer
</span><span>2n = -4
last one is your answer</span>
Answer:
f(5) = 14
Step-by-step explanation:
Just replace the variable "x" with "5":
f(5) = 2×5 + 4 = 14
Answer:
First Answer:
$15,060.
Second Answer:
9.96 miles.
Third Answer:
$3.27.
Step-by-step explanation:
First Question:
Cost of the rented car = 50 + 0.20 = $50.20
How much did Matt's family spend for the car:
1 mile = $50.20
300 miles = ?
300 × 50.20
= $15,060.
Second Question:
If Hayden spent $500 for her rented car, how many miles did she drive:
$50.20 = 1 mile
$500 = ?
500 ÷ 50.20 = 9.96 miles.
Third Question:
What is the cost per gallon of gas:
24 gallons = $78.48
1 gallon = ?
78.48 ÷ 24 = $3.27.
At first, pg means picogram
A microgram is a unit to measure the mass
Then from both relation
Now we can solve the question
Since the average mass per cell is 67.55 pg
Since the number of cells is 10^5
To find the total mass multiply them
We need to change it to microgram, then multiply it by 10^-6
Put a decimal point at the end of the number and move it 6 places to the left to get the answer
