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3 years ago

Calculate the rate of change

Mathematics

1 answer:

bonufazy [111]3 years ago

7 0

Answer is in the photo. I can't attach it here, but I uploaded it to a file hosting. link below! Good Luck!

tinyurl.com/wpazsebu

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Melanie is making lemonade and finds a recipe that calls for 1 part lemon juice, 2 parts sugar, and 8 parts water. She juices 2

MakcuM [25]

12 tablespoons of sugar and 3 cups of water (48 tablespoons)

3 0

3 years ago

Read 2 more answers

When you add a positive and negative number, how can you tell whether the sum will be positive or Negative?

Lera25 [3.4K]

Answer:

just remember this:

negative x negative = positive

positive x positive = positive

postive x negative = negative

negative x postive= negative

lookon bbcbitesize for adding negatives and positive rule

8 0

3 years ago

Add 7/8 + 2 3/24 + 6 1/6

natali 33 [55]

Answer:

9 4/24 or 9 1/6

Find the LCM(lowest common multiple) of 8, 24 and 6.
The LCM of 8, 24 and 6 is 24.
We now want to turn all the denominators into 24 so we are going multiply 7/8 by 3 and 1/6 by 4. We won't need to turn the denominator of 3/24 into 24 because it's already 24
Whatever you do to the denominator you have to do to the numerator, so you also have to multiply the numerator of 7/8 by 3 and the numerator of 1/6 by 4
That now results in 21/8 + 2 3/24 + 6 4/24
Now you have to add all the fractions together which is going to equal to 28/24
Because 28/24 is more than the whole, subtract 28 from 24 which gives us 4. That 4 is now our new numerator
We are now going to all the whole numbers 6+2+1=9. Incase you're wondering, the '1' came from the 28/24
The answer you should get should be 9 4/24 or if it should be simplified it would be 9 1/6

3 0

3 years ago

Please help!

qwelly [4]

It could be -1, 1, and 2

5 0

3 years ago

Read 2 more answers

Solve and show steps -2x+y=-7 and -2x-4y=-12

WITCHER [35]

Answer:

(x, y) = (4, 1)

Step-by-step explanation:

The coefficients of x are the same, so we can cancel the x-terms by subtracting one equation from the other. We want to do this so the resulting y-coefficient will be positive. That means we want to subtract the second equation from the first:

(-2x +y) -(-2x -4y) = (-7) -(-12)

5y = 5 . . . . . . . . simplify

y = 1 . . . . . . . . divide by 5

-2x +1 = -7 . . . . . substitute for y in the first equation

-2x = -8 . . . . . subtract 1

x = 4 . . . . . . divide by -2

The solution is (x, y) = (4, 1).

_____

A graphing calculator easily verifies the solution.

6 0

3 years ago