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vovikov84 [41]
4 years ago
12

What do the following equations represent -4x-4y=-5 and x-2y=1

Mathematics
1 answer:
Semmy [17]4 years ago
5 0

Answer:

The answer to your question is: D = non of the above

Step-by-step explanation:

Data

          -4x - 4y = -5        (I)

             x - 2y = 1          (II)

Process

Find the slopes of both lines

(I)        -4x - 4y = -5

         -4y = 4x + 5

           y = 4/-4 x + 5/-4

          y = - x + 5/4

(II)       x - 2y = 1

          - 2y = - x + 1

            y = -1/-2 x + 1/-2

            y = 1/2 x - 1/2

The slopes are different   slope 1 = -1 and slope 2 = 1/2, so there is no relation between the lines.

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Mom is getting food ready for my birthday party! Including me, there will be 24 people at the party. Mom is baking cupcakes for
KIM [24]

Answer:

6 batches

Step-by-step explanation:

24 people x 4 cupcakes = 96 cupcakes

96 cupcakes / 16 per batch = <u>6 batches</u>

Hope this helped, have a nice day! :)

8 0
3 years ago
There is a bag with only red marbles and blue marbles.
natulia [17]

Answer:

There must be 35 red marbles.

Step-by-step explanation:

This question can be solved using a rule of three.

A probability is the number of desired outcomes divided by the number of total outcomes.

The probability of randomly choosing a red marble is 7/9.

This means that for each set of 9 marbles, 7 must be red.

There are 45 marbles in total in the bag and each is equally likely to be chosen. Work out how many red marbles there must be.

How many red marbles out of 45?

7 red - 9 marbles

x red - 45 marbles

9x = 45*7

Simplifying by 9

x = 5*7

x = 35

There must be 35 red marbles.

6 0
3 years ago
What is 44/9 in a mixed number
lesya [120]
44/9 = 4 remainder 8 so as a mixed number it is 4 and 8/9
8 0
3 years ago
Read 2 more answers
Is the standard deviation of the sample a good estimate of the variation of salaries of tv personalities in​ general?
PolarNik [594]

The correct answer to this would be:

“No, because the sample is not representative of the whole population.”

Since the <span>sample values are the 10 highest annual salaries of TV personalities, they give almost no information about the salaries of TV personalities as a whole or in general. </span>

3 0
3 years ago
Please help me show my work!!! i got the answer but i need to show my work!
lilavasa [31]
Just ask the person you got the answer from to send you a picture or something
5 0
3 years ago
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