if s + y = b and y = z, which of the following must be true?

s + z = b
s + 2y = b + z
s + y = z
b + z = s + y

Question

if s + y = b and y = z, which of the following must be true?

    s + z = b
    s + 2y = b + z
    s + y = z
    b + z = s + y

563blackghost · Answer

Since we know that $\LARGE{y=z}$ that would mean that we would substitute $\LARGE{y}$ as $\LARGE{z}$ in the equation

$\Huge{s+y=b} \rightarrow {\color{red}{s+(z)=b}}$

anonymous · Answer

Thank you. Could you please help with one more question?

563blackghost · Answer

Sure ^^

anonymous · Answer

David wants to buy 3 avacados and some apples. The price of 1 avocado is $1.50. The prices of apples is $1.00 per pound. David can spend less than $15. Write an inequality that represents the avacado and the number of pounds of apples (a) David can buy.

mathmale · Answer

this being an algebra problem, I'd suggest you pick suitable letters to represent the # of pounds of avocados and that of apples that this guy can buy.  For example, for the weight of the avocados, you could use the letter 'b " , and for the # of pounds of apples, the letter 'p.'

Next, consider finding the unit price of a pound of avocados and the unit price of a pound of apples

mathmale · Answer

How much would 1 lb of avoc. cost you?  
1 lb of apples?

Please respond here.