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Harlamova29_29 [7]

3 years ago

13

The Rodriguez family went to the movies on Friday night. At AMC, adult tickets are $13 and children tickets are $7. The family o

f 6 spent a total of $54. How many adults went and how many children went?

1 answer:

morpeh [17]3 years ago

4 0

X+y=6
13x+7y=54
solve the system for x,y

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Write the equation of a line passing through -1,4 and perpendicular to x+2y=11

Sophie [7]

Y=2x+6
gradient is found from the formula,
$\frac{ - 1}{ - \frac{1}{2} } = 2$
y intercept is found by subbing the values of (-1,4) into the equation y=2x+c

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3 years ago

Two mechanics worked on a car. The first mechanic worked for 20 hours, and the second mechanic worked for 5 hours. Together they

Vesna [10]

Answer:

g

Step-by-step explanation:

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3 years ago

Explain how System 1 becomes equivalent to System 2.

Nostrana [21]

Answer:

$\left\{\begin{array}{ccc}(A+L)x+(B+M)y=C+N\\Ax+By=C\end{array}\right$

<h3>A.The first equation in System 2 is the sum of the equations in System 1. The second equation in System 2 is the first equation in System 1.</h3>

Step-by-step explanation:

$\underline{+\left\{\begin{array}{ccc}Ax+By=C\\Lx+My=N\end{array}\right}\qquad\text{add both sides of the equations}\\(Ax+Lx)+(By+My)=C+N\qquad\text{distributive}\\(A+L)x+(B+M)y=C+N$

5 0

2 years ago

Read 2 more answers

X + 7y = -42<br> 5x + 8y = -48<br> A) (1, -7)<br> B) (0, -6)<br> C) (6,0)<br> D) No solution

OLEGan [10]

Answer:

i think its c but im not sure !!!

Step-by-step explanation:

6 0

3 years ago

A scale model of an airplane has a length of 19 centimeters and a wingspan of 18 centimeters. The length of the real airplane is

deff fn [24]

The wingspan is 36 m.

Using a proportion to solve this, we write the scale factor as a ratio first: 19/38, since 19 is the size of the model's length and 38 is the real length. For the second ratio, we have 18 for the size of the model wingspan and x for the real wingspan:

19/38 = 18/x

Cross multiply:
19*x = 38*18
19x = 684

Divide both sides by 19:
19x/19 = 684/19
x = 36 m

7 0

3 years ago

Read 2 more answers