a store has apples on sale for 3.00 for 2 pounds. how many pounds of apples can you buy for $9. if an apple is approximately 5 ounces how many apples can you buy for $9. explain your reasoning
Answers
Answer 1
Answer:
If two pounds of apples cost $3.00 you can buy 6 pounds for $9. 3÷2 = 1.5, so you can buy 1 lb of apples for $1.50 9 ÷ 1.5 = 6, so you can buy 6 lbs of apples for $9 There are 16 ounces in a pound, so 6 pounds is equal to 96 ounces (6*16) 96 ÷ 5 is 19.2 You cant buy 0.2 apples, so 19.2 must be rounded down to 19 apples
You can buy 19 apples for nine dollars.
Answer 2
Answer:
16oz in a pound. you can only buy 6lbs. 1lbs of apples would be 3 with one Oz remaining. 6lbs of apples would have 6oz remaining. so that'd be an extra apple. 6lbs of apples would be 18 apples. 18+1=19 19 apples
Find two numbers that add to make 3x and multiply to make 54 Write out the factor of -54 in pairs 1, -54 -1, 54 2, -27 -2, 27 3, -18 -3, 18 4, -16 -4, 16 6, -9 -6, 9 Then find the pair that, when added = +3 (in bold) -6 + 9 = 3
x² + 9 - 6x - 54 = 0 x(x + 9) -6(x + 9)
Use the (x + 9) and the coefficient of these brackets to make double brackets. (x+9)(x-6) = 0
If the product of two terms =0, at least one must equal 0
x + 9 = 0 x = -9
x - 6 = 0 x = 6
x = -9 or 6
Question 8
2x² -11x - 6 = 0
First, multiply the coefficient of x² by the value of c (the number on its own)2 x -6 = 12
This time, find factors of -12 that equal -11 1, -12 -1, 12 2, -6 -2, 6 3, -4 -3, 4 The pair is in bold 1 + -12 = -11
2x² -12x + x - 6 Split down the middle and factorise in singe brackets 2x(x - 6) 1(x - 6) Now use the brackets pre-made (x - 6) and put together what is in front of them (2x +1) (2x + 1)(x - 6)
If the product of two or more terms = 0, at least 1 must equal 0 2x + 1 = 0 2x = -1 2x/2 = x -1/2 = -0.5
x - 6 = 0 x = 6
x = -0.5 or 6
Question #6: They expect you to remember that the difference of two squares can be factored as
(the sum of the squared numbers) times (their difference).
So [ x² - 16 = 0 ] can be written as (x + 4) (x - 4) = 0 .
Now, a rule that you've used hundreds of times before and you'll use thousands of times again: If the equation says that the product of two things is zero, then the equation is true if EITHER of them is zero.
So ... (x+4) = 0 gives you one solution, and (x-4)=0 gives you the other solution. __________________________________
Question #7:
Factor the left side of the equation.
(x + 9) (x - 6) = 0 .
Now, use a rule that you heard somewhere VERY recently: If the equation says that the product of two things is zero, then the equation is true if EITHER of them is zero.
So ... (x + 9) = 0 gives you one solution, and (x - 6) gives you the other one. _______________________________________
Question #8:
Factor the left side of the equation:
(2x + 1) (x - 6) = 0
Now use the golden rule that you've memorized by now: If the equation says that the product of two things is zero, then the equation is true if EITHER of them is zero.
So ... (2x + 1) = 0 gives you one solution, and (x - 6) = 0 gives you the other one.
Please look at the picture if wanted to answer my question
Answers
you must divide both sides by 3,and you get 3/4.
Can some one help me Please?Tracy wants to find out if her math test scores are related to the number of hours she studies for the tests
which is the dependent variable in the experiment?
A. hours studied
B. test scores
Please let me know in the comments
Answers
In independent variable would be the hours studied, because it doesn't depend any anything. The dependent variable would be the test scores, as they all tie into each other.
Answer: B. test scores
B Is the correct answer , Because you have to study for the test in order to take the test , so her studying will show up on her test. its the dependent variable
dose this help?
Prime number definition
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A prime number is a number that has no factors other than ' 1 ' and itself.
A number that has no other divisors besides one and itself. Also a number greater than one.
What fraction of a pound is 25 pence
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There are 100 pence in a Pound. So we have to divide 25 pence over this pound, or over 100 pence: 25/100 is 1/4, so 25 Pence is one forth of a Pound (or 25 % in percentages):