Answer:
Step-by-step explanation:
If you factor the expression 7a+21 you can get:
7 × (a+3)
Answer:

Step-by-step explanation:
To find many more pounds of apples Kimane and his friend needs to get, we first need to find out how many pounds of apples they picked together.
Kimane = 
Friend = 
We add them together to find out how many pounds of apples they currently have.
Total Pounds = 
Just to make the equation clearer, we separate the whole numbers from the fractions.


Now since we cannot add the 2 fractions directly since they have different denominators, we need to convert the
into a fraction with the same denominator.
We multiply both the numerator and denominator by 2 to have the same denominator.

So now we have:



Now that we know how many pounds Kimane and his friend collected, we simply subtract 20 and the total amount Kimane and his friend had already collected.


So Kimane and his friend still need to get
more pounds of apples to get 20 pounds of apples.
Answer:
In order to increase humidity by 49.17 grams per kilogram, the increase in temperature will be 18 degree Celsius approx.
Step-by-step explanation:
Initial humidity = 5.75 g/kg
Final humidity= 49.17 g/kg
Percentage increase in humidity= (49.17-5.75)/5.75 *100= 755.13
Increase in temperature= 755.13/43 = 17.56
Increase in temperature = 18 degree Celsius approx.
Answer:
B
Step-by-step explanation:
It has a slope of -1/4
and it's y intercept is 2
y = -1/4x + 2
The number of people in the auditorium can be less than or equal to 420 so let p represent the number of people
The inequality is p≤420