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olya-2409 [2.1K]
3 years ago
9

If a=20 then what is 5a

Mathematics
1 answer:
Rina8888 [55]3 years ago
5 0
If a=20 then 5a would be 100 because 5*20=100

Hope this helps!
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Javier participated in a local hot dog-eating contest. The graph below shows the number of hot dogs he ate. What is Javier's ave
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D, 1 minute 7 hotdogs are aten
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3 years ago
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PLEASE HELP I POSTED LIKE 2 HOURS AGO WITH THIS QUESTION AND I NEED HELP:)
garik1379 [7]

A system is inconsistent when there are no solutions between the two equations. Graphically, the lines will be parallel (they never meet!) and the slopes will be the same. But the y-intercepts will be different.

Let's look at the four equations, with each solved as needed, into y = mx + b form.

A: 2x + y = 5

y = 5 - 2x

y = -2x + 5

Compared to y = 2x + 5, the slopes are different, so this system won't be inconsistent. Not a good choice.

B: y = 2x + 5

Compared to y = 2x + 5, the slopes are the same and the y intercepts are the same. This system has infinitely many solutions. Not a good choice.

C: 2x - 4y = 10

-4y = 10 - 2x

-4y = -2x + 10

y = 2/4x -10/4

Here the slopes are different, so, like A this is not a good choice.

D: 2y - 4x = -10

2y = =10 + 4x

2y = 4x - 10

y = 2x - 5

Compared to y = 2x + 5 we have the same slopes and different y intercepts.  The lines will be parallel and the system is inconsistent.


Thus, D is the best choice.

7 0
3 years ago
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What do you think about when you hear the phrase "system of equations"? In other words, what do you already know about systems o
Reptile [31]
Basically the question is asking YOU when you hear “system of equations” what do you think about it - what do you already know about system of equations. Basically. Btw enjoy this picture.

4 0
3 years ago
Please help find area !
11111nata11111 [884]

Answer:

33.32

Step-by-step explanation:

<h2><u>can use cross multiplication </u></h2>

20 : 34

19.6 : x

20x = 19.6 * 34

20x = 666.4

x= 666.4/20

x=33.32

<u>area = 33.32 </u>

4 0
3 years ago
Please answer this please
motikmotik

Answer:

Step-by-step explanation:

6 0
2 years ago
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