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cluponka [151]
3 years ago
10

How do you solve number 13(the last one)

Mathematics
1 answer:
N76 [4]3 years ago
3 0
Lets say that variable x=total number of hotdogs, and variable y=total number of drinks. Our first equation will calculate the total cost.
2x+1y=11. We are multiplying the price by the total number of each item then adding them together, since they spent a total of $11. Our second equation will calculate the number of items.
x+y=8.
To solve, we will isolate x in the second equation. x=8-y We will substitute that for x in the first equation. 2(8-y)+1y=11 Distributive property. 16-2y+1y=11 Combine like terms. 16-y=11 Isolate y to solve. y=5 Then we plug y into the second equation and solve for x. x+5=8 Subtract 5 from both sides. x=3
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consider the line y=9x-2. find the equation of the line that is perpendicular to this line and passes through the point (2,-6).
seraphim [82]

Answer:

m = 0, (2,2)

Step-by-step explanation:

(-7, 1) , m = 2

(2, 5) , m = 3

6 0
3 years ago
Eight times a number equals 35 more than the number. Find the number
seropon [69]
The number is 5; 5*8=50, 40-5=35
4 0
3 years ago
Hello can you please help me posted picture of question
Olin [163]
There are 4 seats in total.

There are 4 ways to fill 1st seat.
When 1st seat is filled, there will be 3 ways to fill the second seat.
Similarly there will be 2 ways to fill the third seat and 1 way to fill the last seat.

So, total number of ways the seats can be filled = 4 x 3 x 2 x 1 = 24 ways.

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4 0
3 years ago
A and B alternate tossing coins until the first head. B uses a fair coin, and A uses one where P(T) = p. If A tosses first, find
Firlakuza [10]
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4 0
4 years ago
Product property:
liberstina [14]

Answer:

log 12 = 1.0791

Step-by-step explanation:

<u><em>Step(i):-</em></u>

Given that the logarithmic function is log12

We will apply the formula

log by = log b + log y

log xⁿ = n log x

<u><em>Step(ii):-</em></u>

log 12 = log 4 × 3

         = log 4 + log 3

         = log 2² + log 3

       = 2 log 2 + log 3                 (∵ log xⁿ = n log x)

      = 2× 0.3010 + 0.4771

     =  1.0791

8 0
3 years ago
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