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trasher [3.6K]
3 years ago
13

Worth 30 points. Help a homie out

Mathematics
1 answer:
Sauron [17]3 years ago
8 0

Answer:

Multiply the second equation by -3 to get -3x - 9y = -30.

Step-by-step explanation:

When eliminating, you need to find a term with the negative of that term to combine so that they cancel each other out. An example would be 3x in the first equation and (-3x) in another equation so that when added, it becomes: 3x-3x = 0.

In the second equation, you see that there is already an x there and you just need to make it become (-3x). Thus, you multiply the entire second equation by -3 to make -3x. Once you have done that, you can combine the two equations and eliminate 3x from the first equation.

3x + 5y = 30

-3x - 9y = -30

3x + 5y -3x - 9y = 30 + (-30)

0 - 4y = 30 - 30

-4y = 0

<em>You can find y and then x later on from here. </em>

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Trevor pays $125 in fees each semester plus $650 per college course.
slava [35]
I hope this helps you



for per college course $650


650.?+125=2725
7 0
3 years ago
Circle O and circle P are congruent. What can you conclude from the diagram?
DENIUS [597]

Answer:

None of these.

Step-by-step explanation:

The sector angle is not given, therefore no conclusions about the choices involving points D,E and A,B with respect to each other, and C, F can be made.

3 0
3 years ago
Whats 4.3 in a fraction
prisoha [69]
<span>Write the decimal number as a fraction
(over 1)
4.3 = 4.3 / 1

Multiplying by 1 to eliminate 1 decimal places
we multiply top and bottom by 1 10's

Numerator (N)
N = 4.3 × 10 = 43
Denominator (D)
D = 1 × 10 = 10

N / D = 43 / 10

Simplifying our fraction

= 43/10

= 43/10

= 4  3/10</span><span>
</span>
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3 years ago
Help view the picture find the value of p
bonufazy [111]

Answer:

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3 years ago
Which three statements are true about the line segment CB
Andrews [41]

Answer:

1. it is 7 cm long

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3. it is the diameter of the circle

Step-by-step explanation:

Here, we want to select three statements that are true about CB

From what we have, CB runs from one edge to the other, passing through the center of the circle

Also, as we can see, AD is a radius as it is the distance from the center of the circle to the circumference; CB is twice this as it is the diameter

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2. it is a chord

3. it is the diameter of the circle

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3 years ago
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