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butalik [34]
2 years ago
5

Answer this one please!

Mathematics
1 answer:
Scilla [17]2 years ago
6 0
Using simultaneous equation,

a=-1, b=1, x=1, y=0
OR
a=1, b=-1, x=1, y=0.
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Please help if you can!!!!
storchak [24]

Answer:Well, I don't know what you got so I can't tell you if it is right.

If it works in both equations, it depends of whether your equations are set up correctly.

Here is how I would do this problem.

Let x = no. of hot dogs,y = number of sodas.

First equation is just about the number of things.

x + y = 15

Second equation is about the cost of things.

1.5 x + .75 y = 18

solve x+y = 15 for y  y = 15-x    substitute into second equation

1.5x + .75(15 - x) = 18    

You should get the correct answer for number of hot dogs if you solve this correctly.  Put your answer in the x + y =15 equation to get y.  Then put both x and y into the cost equation and check your answer.

Hope this helps.

Step-by-step explanation:

5 0
2 years ago
HELP IM TIMED JUST ONE LAST QUESTION
Arturiano [62]

Answer:

B

Step-by-step explanation:

may I please have brainlyest

6 0
3 years ago
Read 2 more answers
What are the following numbers writen as powers? 243
puteri [66]

Answer:

243=3^5

Step-by-step explanation:

We have to write 243 as a power of some number.

So, if we factorize 243 we get,

243 = 3 × 3 × 3 × 3 × 3

Therefore, we can write 243 as a power of 3.

No other number can be written in powers of 243 because it do not contain any other factor than 3.

Hence, 243 can be written as :

243=3^5

6 0
3 years ago
Which of the following inequalities are true?
yarga [219]

Answer:

i think its B or D sorry if I'm wrong

3 0
2 years ago
Why would |3-6| be 3 instead of -3?
Delicious77 [7]
Because you can have a negative inside the absolute value so even if it is inside the absolute value of -3 will come out as 3.
6 0
3 years ago
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