Aelectronic store sells a certain digital camera for $126. this is 2/3 of the price that a photography store charges. what is the cost of the camera at the photography store?

Let us assume the cost of the camera at the photography store = $x.

We are given $126 is 2/3 of the price that a photography store charges.

Let us repharse above statement "$126 is 2/3 of the store price x".

Let us convert above statement in an equation now.

126 = 2/3 of x.

126 = 2/3 x.

Dividing both sides by 2/3, we get

126 ÷ 2/3 =2/3 x ÷ 2/3.

126 × 3/2 = x

378/2 =x.

x= 189.

Therefore, the cost of the camera at the photography store is $189.

infinitely many solutions

step-by-step explanation:

we have been given the equation;

2(2x + 3) = -4 + 2(2x + 5)

we need to determine the value of x.

2(2x + 3), we expand this expression to obtain 4x + 6

similarly 2(2x + 5) will become 4x + 10

now we have;

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 10 - 4

4x + 6 = 4x + 6

the expression on the left hand side is identical to the one on the right hand side. therefore, we are looking at just a single straight line whose equation is;

y = 4x + 6

consequently, we shall have infinitely many solutions

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify