Sally was able to eat 5/8 of her lunch john are 75% of his lunch who are more of their meal

Mathematics

2 answers:

Nutka1998 [239]3 years ago

4 0

Answer:

john ate more because 5/8 is only 60 percent

garri49 [273]3 years ago

3 0

Answer:

John

Step-by-step explanation:

To be able to compare these easier, you'd turn the percentage 75% into a fraction. 75% equals 3/4. Then, you'd find a common denominator. Both 3/4 and 5/8 can be turned to have the denominator of 8. Since 5/8 already has the denominator of 8, you'd leave that alone. But, in order to get the denominator of 8 for 3/4, you'd have to multiply 4 times 2 to get 8. And, what you do to the bottom, you must do to the top, so 3 times 2 is 6. So 3/4 = 6/8.

SO, which is bigger Sally's 5/8, or John's 6/8? John ate more lunch.

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Solution:

we have been asked to verify that -5, 1/2, and 3/4 are the zeroes of the cubic polynomial $4x^3+20x^2+2x-3$

To verify that whether the given values are zeros or not we will substitute the values in the given Polynomial, if it will returns zero, it mean that value is Zero of the polynomial. But if it return any thing other than zeros it mean that value is not the zero of the polynomial.

Let $f(x)=4x^3+20x^2+2x-3\\\\\text{when x=-5}\\\\f(-5)=4(-5)^3+20(-5)^2+2(-5)-3=-13\\\\\text{when x=}\frac{1}{2}\\$