Answer:
4a-b-c
Step-by-step explanation:
we first look at the letters of each number. if there is only a letter, there is an imaginary 1 in front of it. we need to make sure that we add the numbers that have the exact same letters because they are known as like terms. we cannot add 6a and 4b because the letters are different and they are known as unlike terms. When we add numbers with the same letter ONLY the number changes
Answer:
The number is -2
Step-by-step explanation:
step 1
Find the reciprocal of 2/3
Remember that when multiply a number by its reciprocal, the result is 1
so
The reciprocal of 2/3 is 3/2
step 2
Let
x-----> the number added to the numerator and denominator
Solve for x
step 3
verify
substitute x=-2
Simplify
----> is ok
therefore
The number is -2
Answer:
Step-by-step explanation:
Sara sold $3350 in ads,
Kenny sold $1368, and
Leila sold $456
(a)
total sale=3350+1368+456=$5174
Sara's fraction=3350/5174=0.6475
Kenny's fraction=1368/5174=0.2644
Leila's fraction=456/5174=0.0881
(b)
total bonus=$150
Sara's bonus=150*0.6475=$97.12
Kenny's bonus=150*0.2644=$39.66
Leila's bonus=150*0.0881=$13.22
The amount of the element remaining (y) in grams after time (t) in minutes is defined by the equation y=970(1-.151)^t. Substitute t=14 into the equation and solve for y. y=970(.849)^14=98.06 rounded to two decimal places.
