For smart people out there, if u are smart , figure out this question. if u can!only part A.

The cost , in dollars, for 3 pounds of oranges is 1.8

Solution:

Given that Monica paid 3.20 for 2 pounds of apples and 2 pounds of oranges

Sarah paid 4.40 for 2 pounds of apples and 4 pounds of oranges.

Let the cost of orange per pound = x  

Let the cost of apple per pound = y  

Therefore, we can frame an equation as follows for Monica and Sarah:

In Monica’s case:  

2x + 2y = 3.20  

Hence x + y = 1.6 ---- eqn 1

In Sarah’s case:  

4x + 2y = 4.40  

Hence 2x + y = 2.2

y = 2.2 -2x – eqn 2

Substitute eqn 2 in eqn 1 we get,

x + 2.2 -2x = 1.6

-x = 1.6-2.2 = -0.6

x = 0.6

Substituting the value of “x” in eqn 2 we get the value of “y” as 1

Thus the cost of orange per pound is 0.6

Therefore, cost of 3 pounds of oranges = 3 × 0.6 = 1.8

Answer:

The solution in the attached figure

Step-by-step explanation:

Let

x ----> the number of candy pack that Brian can buy

y ---> the number of gum pack that Brian can buy

we know that

The inequality that represent this situation is

The solution is the shaded area below the solid line  

The slope of the solid line is negative

using a graphing tool

The solution is the shaded area

Remember that the value of x and the value of y cannot be a negative number

see the attached figure

Answer: x < -2

Step-by-step explanation:

Divide -x by 2, and you get -2 making -x turn into a positive x, and since the answer is negative, the inequality flips from right > to left. <

It is a CLOSED circle going left.

Hope this helps :)

The answer in standard notation is  11244000 . The answer in scientific notation is p × 10q, where p is 1.1244  and q is  7 .