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riadik2000 [5.3K]
3 years ago
7

Plz answer the whole question and u will get 15 points

Mathematics
2 answers:
s344n2d4d5 [400]3 years ago
3 0
10.5 ounce package- $3.51
29.3 ounce package- $3.67
It is better to buy a 10.5 ounce package
svlad2 [7]3 years ago
3 0

Answer:

The $29.3 ounce package is the better buy

Step-by-step explanation:

Unit price =  total cost / number of ounces in the package.

So for the smallest size unit price = 2.99 / 10.5 = $0.28

and for the larger package  unit price = 7.98 / 29.3 = $0.27

The 29.3 oz package has the lowest unit price.

So the better buy is the larger 29.3 oz package.

Hope this helps.

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Citrus2011 [14]
She should try to collect 75 each week
5 0
2 years ago
Let y be inversely proportional to x. if x​ doubles, what happens to​ y?
Mila [183]
When it is said that a variable is inversely proportional to another, it is best to write out an equation to represent it. 

This means; 

y=k/x (where k is a constant number like 1 or 2, etc) 

If you double x, the value of y is halved. I have attached a graph that shows this. 

Hope I helped :) 

4 0
3 years ago
Solve the compound inequality |3x-9|≤15 and |2x-3|≥5. Give answer in interval notation.
laila [671]

Answer:

The solution of |3x-9|≤15 is [-2;8] and the solution |2x-3|≥5 of is  (-∞,2] ∪ [8,∞)

Step-by-step explanation:

When solving absolute value inequalities, there are two cases to consider.

Case 1: The expression within the absolute value symbols is positive.

Case 2: The expression within the absolute value symbols is negative.

The solution is the intersection of the solutions of these two cases.

In other words, for any real numbers a and b,

  • if |a|> b then a>b or a<-b
  • if |a|< b then a<b or a>-b

So, being |3x-9|≤15

Solving: 3x-9 ≤ 15

3x ≤15 + 9

3x ≤24

x ≤24÷3

x≤8

or 3x-9 ≥ -15

3x ≥-15 +9

3x ≥-6

x ≥ (-6)÷3

x ≥ -2

The solution is made up of all the intervals that make the inequality true. Expressing the solution as an interval: [-2;8]

So, being |2x-3|≥5

Solving: 2x-3 ≥ 5

2x ≥ 5 + 3

2x ≥8

x ≥8÷2

x≥8

or 2x-3 ≤ -5

2x ≤-5 +3

2x ≤-2

x ≤ (-2)÷2

x ≤ -2

Expressing the solution as an interval: (-∞,2] ∪ [8,∞)

6 0
3 years ago
What is the slope of 2x-1=-3y
torisob [31]
I think its -1 i not very smart so it probably wrong


5 0
3 years ago
Read 2 more answers
Given the polynomail function below, find f(-5) f(x)=x^2-2x-7
SIZIF [17.4K]
F(-5) = -5^2 - 2*(-5) - 7 = 25 - (-10) - 7 = 25 + 10 - 7 = 25 + 3 = 28
8 0
3 years ago
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