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elena55 [62]
2 years ago
10

Olivia ate at the same restaurant three times. Each visit, she ordered a

Mathematics
1 answer:
zloy xaker [14]2 years ago
7 0

Answer:

equation: 3e + $6.75 = $39, where e = $10.75, assuming that sandwich = salad

Step-by-step explanation:

Olivia ate 3 times, hence, she tipped a total of $2.25 x 3 = $6.75

Since Olivia spent a total of $39,

3e + $6.75 = $39

(If you want to solve for e:

3e = $32.25

e = $10.75)

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6 xy × 4 = 2 x72 please koi solutions do​
PolarNik [594]

Answer:

y = 6

Step-by-step explanation:

6 * y * 4 = 2 * 72

y = 2 * 72/24 = 6

7 0
2 years ago
Read 2 more answers
A) Rearrange the following formula to make x the subject.
Tresset [83]

Answer:

x = 13y + 0.625

Step-by-step explanation:

4(2x - 3y) = y + 5

8x - 12y = y + 5

8x = y + 5 + 12y

8x = 5 + 13y

8x ÷ 8 = 5 + 13y ÷ 8

x = 5 + 13y ÷ 8

x= 13y + 5 ÷8

x = 13y + 0.625

3 0
3 years ago
Emails arrive at the server of a company at the rate of an average of 10 per hour. It is assumed that a Poisson process is a goo
fomenos

Answer:

0.37

Step-by-step explanation:

we have given that emails arrives at the server at the rate of 10 per hour means \frac{10}{60}=0.166  per minute

we have to find the probability that the time difference between the two email is more than 2 minute

so probability P\left ( X> 2 \right )=e^{-2\lambda }=e^{-2\times 0.166}=0.7166

4 0
3 years ago
Write the following number in standard decimal form.<br> seven and sixty-one thousandths
amid [387]

Answer:

0.761

Step-by-step explanation:the 7 is in the tenths the 6 is in the hundredths and the 1 is in the thousandths

4 0
2 years ago
Which systems of equations intersect at point A in this graph?
abruzzese [7]

Answer:

The point of intersection of the system of equations is:

(x, y) =  (-2, 1)

The correct system of equations intersect at point A in this graph will be:

\begin{bmatrix}y=4x+9\\ y=-3x-5\end{bmatrix}

Thus, the second option is correct.

Step-by-step explanation:

Given the point

  • A (-2, 1)

Let us check the system of equations to determine whether it intersect at point A in this graph.

Given the system of equations

\begin{bmatrix}y=4x+9\\ y=-3x-5\end{bmatrix}

Arrange equation variable for elimination

\begin{bmatrix}y-4x=9\\ y+3x=-5\end{bmatrix}

so

y+3x=-5

-

\underline{y-4x=9}

7x=-14

so the system of equations becomes

\begin{bmatrix}y-4x=9\\ 7x=-14\end{bmatrix}

Solve 7x = -14 for x

7x=-14

Divide both sides by 7

\frac{7x}{7}=\frac{-14}{7}

Simplify

x = -2

For y - 4x = 9 plug in x = 2

y-4\left(-2\right)=9

y+4\cdot \:2=9

y+8=9

Subtract 8 from both sides

y+8-8=9-8

Simplify

y = 1

Thus, the solution to the system of equations is:

(x, y) = (-2, 1)

From the attached graph, it is also clear that the system of equations intersects at point x = -2, and y = 1.

In other words, the point of intersection of the system of equations is:

(x, y) =  (-2, 1)

Therefore, the correct system of equations intersect at point A in this graph will be:

\begin{bmatrix}y=4x+9\\ y=-3x-5\end{bmatrix}

Thus, the second option is correct.

3 0
2 years ago
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