Answer:
x = 3.5
Step-by-step explanation:
3.5 x 3 is 10.5. Triangle two has been expanded each side by 1.5. So multiply 7 (the side with 3x on the other triangle) x 1.5 to get 10.5. To fid x divide 10.5 by 3. This gives you 3.5 as x.
Hope it helps!
Hey!
To find out how long it would take for both functions to equal the same thing, you would set them equal to each other, like this:
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Then you would combine like terms. Keep in mind that when doing operations over the equal sign, you have to do the opposite operation. After combining like terms, you would have
So at this point, you just simplify.
It would take 5 months for the amount of money to be equal. She would save $250 with either option.
Hope this helped :)
Let the numbers be x and 4x. So, according to the question,
x + 4x = 100
=> 5x = 100
=> x = 100/5
=> x = 20
So, the number are,
x = 20
and
4x = 4×20 = 80
So, the two numbers are 20 and 80.