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Alenkasestr [34]
2 years ago
12

Which is a better buy: Twelve cans for $9 or 4 cans for $3? Explain.

Mathematics
1 answer:
egoroff_w [7]2 years ago
7 0

Answer:

theyre worth the same so twelve

Step-by-step explanation:

if you divide the amount youre spending then the amount youre buying you can get the price of each. therefore:

$9/12 cans = 0.75

$3/4 cans =0.75

so theyre the same amount just depends on how hungry you are

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1 1/11 rewrite each number as a single fraction greater then one
mafiozo [28]

Answer:

12/11

Step-by-step explanation:

11/11=1

1/11=1/11

11/11+1/11=12/11

7 0
2 years ago
How many times does X squared minus 4X -12 cross the X axis
kolbaska11 [484]

We can solve this problem using discriminant.

x^2-4x-12's discriminant is

(-4)^2-4*-12=16+48 which is clearly larger than 0

This means that it crosses over the axes 2 times.

In case you don't know what discriminant is, its in equation ax^2+bx+c

the discriminant is b^2-4ac.

If its positive it has 2 crosses with x axis, if negative then 0 crosses, if 0 then 1 cross.

Hope this helped at least a little bit :D

4 0
2 years ago
(3xy^3)^2 (xy)^6 simplify the expression
solong [7]
9x8y12 it a lot of work to do so I don't want to type how to do the problem
5 0
3 years ago
PLEASE HELP I WILL GIVE BRAINLEST AND 20 POINTS PLEASEEEE
rewona [7]

Answer:

Question 4: Which equation is parallel to the above equation and passes through the point (35, 30)

y= \frac{5}{7} x + 5  is the correct answer, I found this by inputting the x and y value of the coordinate (35, 30) onto the equation and solving for y-intercept since the slope of all equations is the same (since it's traveling parallel)

30 = \frac{5}{7} (35) + y\\30 = 25 + y\\5 = y

so the equation would be y= \frac{5}{7} x + 5

Question 5: Which equation is perpendicular to the above equation and passes through the point (35, 30)

y=\frac{-7}{5} x+79 is the correct answer, I found this using the same method as before, input coordinate values into the equation and solve for the y-intercept (The only thing changed from the last answer is the opposite reciprocal slope).

30 = \frac{-7}{5}(35) + y \\30 = -49 + y  \\79 = y

so the equation would be y=\frac{-7}{5} x+79

6 0
2 years ago
PLEASE HELP!!
Natasha2012 [34]

Answer:

b

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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