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Irina18 [472]
4 years ago
15

9. Solve x - 72 > 21.

Mathematics
2 answers:
castortr0y [4]4 years ago
7 0

Inequalities are just like regular equations with only one exception.  Which is when yo multiply or divide by a negative number to both sides of the inequality sign you must flip it.  But, for this inequality that rule will no apply.  So, what I do to make it easier because I know we all see a different sign in an equation and we start to freak out.  So, change the inequality sign to an equals sign to get a hang of working with them.  

Example of changing an inequality sign to an equals sign:

x-72=21

x-72+72=21+72    Addition property of equality

x=93

                                        or

Example of keeping the inequality sign

x-72>21

x-72+72>21+72   Addition property of equality

x>93

Andrej [43]4 years ago
6 0

Answer:

x> 93

Step-by-step explanation:

x - 72 > 21.

Add 72 to each side

x - 72+72 > 21.+72

x> 93

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Answer:

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Step-by-step explanation:

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We have been given that a cupcake factory has already used 22.8 pounds of flour today.

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The equation representing the total weight of used flour is given as:

To find the total weight of flour used, when 18 batches are baked we will substitute b = 18 in our given equation.

Therefore, the total weight of flour used in baking 18 batches will be 166.8 pounds.

4 0
3 years ago
What is the equation of the line that has a slope of -3 and passes through the point (-4,-2)
Vikentia [17]

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Step-by-step explanation:

7 0
3 years ago
CAN SOMEONE HELP ME ON THIS
swat32
It's kinda hard to see the top 2 so I wont answer them only because I can't see it clear enough and I don't want to give the wrong answer because i thought it said something else but i can help with #10, anyway here's what I got it might not be fully right because I'm learning this same thing, but I'm pretty good with it. 

#10. Since a triangle has a total measure of 180 degrees, you have to figure out how to get each angle to equal 180 when all 3 are added together, so here's how you solve it:

Step 1- Figure out what X represents in this question. Let's start with angle W. They already give you part of the equation, which is W= x +6. So now the next angle is X which the equation is X= 5x-12. The 3rd angle is Y= 7x-48.

Step 2- Add/ subtract the equation for each angle, and write what you got for your answer after each equation. 

Step 3- After you have done step 2, try to mess around with each angle (multiply,subtract, etc.) until you got the angles to where they equal to 180 when added together.

Step 4- Write down the value of X in the blank that helped you solve the question. Do the same thing for the 3 angles.

I'm not giving the answer, but do the steps and you will be able to get it. It also helps you so you can do these on ur own.

I don't know if these are the steps u were taught, but this is how my math teacher taught me and the class.

Hope this helps, tell me if it got u the right answer or not!! :-)
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4 years ago
Abbie borrows $3,216 at a rate of 645% per year. How much simple interest will she owe if it takes 2 years to repay the loan? Ro
aalyn [17]

Answer: 499.0

Step-by-step explanation:

6 0
3 years ago
68 of _______ = 85 how do you get 85 do 68 of blank % = 85
faust18 [17]
X=80 Explanation:

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<span>x=<span>80</span></span>

5 0
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