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3 years ago

6

Tell whether the ratios form a proportion. 1/3, 7/21

1 answer:

Vilka [71]3 years ago

6 0

I don’t think it does

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Which pair of ratios forms a proportion?

bogdanovich [222]

Answer:

a

Step-by-step explanation:

8 0

4 years ago

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which of the following equations can be used to calculate the values of t for which the distance between Chris and any is 300 mi

Papessa [141]

The first thing we must know in this case is that the distance is equal to the speed for time.
We have then:
For Chris:
d1 = 40 * t
For Amy:
d2 = 60 * (t-2)
The distance between both will be given by the hypotenuse of the rectangle triangle:
300 = root ((40 * t) ^ 2 + (60 * (t-2)) ^ 2)
Answer:
300 = root ((40 * t) ^ 2 + (60 * (t-2)) ^ 2)
option 3

8 0

3 years ago

Read 2 more answers

Help me pweasee.

VashaNatasha [74]

Answer:

1

Step-by-step explanation:

use y-y1=m(x-x1) formula. Plug your coordinate pair into the problem. X1=8 and Y1=3

6 0

3 years ago

For a production of sweeney todd in las vegas, orchestra seats cost $42 and mezzanine seats cost $25. if a group of 14 people sh

Lesechka [4]

Answer: 8 orchestra seats and 6 mezzanine seats.

Step-by-step explanation:

Let be "o" the number of orchestra seats they bought and "m" the number of mezzanine seats they bought.

Set up a system of equations:

$\left \{ {{42o+25m=486} \atop {o+m=14}} \right.$

You can apply the Substittution Method to solve the system of equations:

1. Solve for "o" from the second equation:

$o=14-m$

2. Substitute it into the first equation and solve for "m":

$42(14-m)+25m=486\\\\588-42m+25m=486\\\\-17m=-102\\\\m=\frac{-102}{-17}\\\\m=6$

3. Substitute the value of "m" into $o=14-m$ and evaluate, in order to find the value of "o". This is:

$o=14-6\\\\o=8$

4 0

4 years ago

Please show all work and first right answer gets brainly.

ladessa [460]

Answer:

im not good with math sorry :(

Step-by-step explanation:

6 0

3 years ago