Try 21 if its wrong sorry im not very smart
Answer:
The answer would be true.
Step-by-step explanation:
Since 10 equals y that means that 60=6y is true because 6x10 is 60.
let
x-------> walnuts that Mario eats in a week
y-------> walnuts that Yolanda eats in a week
we know that
x=2y-------> equation 1
y=6*7-------> y=42 walnuts
substitute the value of y in equation 1
so
x=2*42-----> x=84 walnuts
therefore
the answer is
Mario eat in a week 84 walnuts
Answer:
Input
Independent variable
Step-by-step explanation:
we know that
<u><em>Independent variables</em></u>, are the values that can be changed or controlled in a given model or equation
<u><em>Dependent variables</em></u>, are the values that result from the independent variables
we have the function

In this problem
The function d(t) represent the dependent variable or the output
The variable t represent the independent variable or input
Answer: 82.3 g
Step-by-step explanation:Moles Cu = 300 g x 1 mol Cu/63.55 g = 4.72 moles Cu
Moles Zn = 4/15(4.72) = 1.26 moles
mass Zn = 1.26 moles x 65.38 g/mol =