Gretchen is a scientist. The table shows the daily number of bacteria present in a petri dish. Day 4 Which expression gives the number of bacteria on day 15? Number 5 of Bacteria 10 20 40 80 %24 3.
Percentage
A percentage is a number indicated as a fraction of 100. It is a dimensionless number often expressed using the symbol %.
Algebraic Expressions
In mathematics, an algebraic expression consists of constant(s), variable(s), and mathematical operators. It is made up of terms.
Numbers
Numbers are some measures used for counting. They can be compared one with another to know its position in the number line and determine which one is greater or lesser than the other.
Subtraction
Before we begin to understand the subtraction of algebraic expressions, we need to list out a few things that form the basis of algebra.
Addition
Before we begin to understand the addition of algebraic expressions, we need to list out a few things that form the basis of algebra.
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Gretchen is a scientist. The table shows the daily number of bacteria present in a petri
dish.
Day
4.
5
Which expression gives the number of bacteria on day 15?
Number
5 10 20 40 | 80
of Bacteria
515
5-214
5-215
5. (2 · 15)
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