Based on the fact that Kayden is the youngest and their ages are consecutive and add up to 90, the Kayden is 21.
<h3>How old is Kayden?</h3>
To find Kayden's age, assume that it is x and use the formula:
90 = x + (x + 1) + (x +2) + (x +3)
Solving for x gives:
90 = 4x + 6
4x = 90 - 6
x = 84 / 4
x = 21
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36m+27+6m=0### 30m=27###m=9/10
Let cheese wafers = x
chocolate wafers = y
we know they bought 20 total packets so x+y = 20, this can be re-written as x = 20-y
cheese wafers cost 2, so we have 2x
chocolate wafers cost 1, so we have 1y, which is just the letter y
so we know 2x + y = $25
replace x with x=20-y to get:
2(20-y)+y = 25
distribute the parenthesis:
40-2y +y = 25
combine like to terms to get:
40-y = 25
subtract 40 from each side"
-y = -15
divide both sides by -1
y = 15
chocolate wafers was y so they bought 15 chocolate wafers
cheese wafers was x, so they bought 20-15 = 5 cheese wafers
using the substitution method was the easiest way to isolate one of the variables in order to find the solution.
Answer:
Step-by-step explanation:
since -1≤sin2x≤1 no x values would satisfy the equation
Answer:
It would be 1/4 or 25%
Step-by-step explanation:
done this before
