Step-by-step explanation:
En una PA cuya razón es 16, el término que ocupa el lugar 4 es 61. Si el último término es 173, ¿cuántos términos tiene la progresión?
Answer:
y+(x\-4^2)=18
Step-by-step explanation:
y+(x+-4^2)=18
6(7)+24(7)-28
42+168-28
210-28
=182
(i’m going based the little info you gave)
Answer: x=-2
Step-by-step explanation:
y=x+1
y=-x-3
-x-3=x+1
-4=2x
x=-2
<h3>
Answer: x-y years old</h3>
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Explanation:
Let's use numbers in place of the variables
Let's say Anna is 25 years old and her sister Jane is 5 years younger.
This means Anna was 25-5 = 20 years old when Jane was born.
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As another example:
Anna = 37 years old
Jane = 10 years younger
Anna was 37-10 = 27 when her sister was born
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The examples show that all we do is subtract the x and y values to figure out how old Anna was when her sister was born.
For the first example, we basically did x-y = 25-5 = 20
The second example was x-y = 37-10 = 27
A variable is placeholder for a number. Think of it as a box where a single number will go inside.
