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ExtremeBDS [4]
3 years ago
6

−3x + y = 4, −9x + 5y = −1 find x and y

Mathematics
1 answer:
katrin [286]3 years ago
3 0

Answer:

9x - 3y = -12

-9x +5y = -1

2y = -13

y = -13/2

-3x - 13/2 = 8/2

-3x = 21/2

-6x = 21

x = -21/6 = -7/2

(-7/2, -13/2)

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the summer camps had a field trip from the campus to fragrance hill. they traveled at an average speed of 65km/h in the first tw
sergejj [24]

Answer:

I took them a total of 5 hours

Step-by-step explanation:

First you multiply 65 by 2 because of the first two hours

Then you subtract 130 out of 364 to get 234, those were the first two hours

The next hours you simply divide 234/78, which is 3

3 + 2 = 5 hours

4 0
2 years ago
Which steps can be used to solve<br> 6<br> X<br> 1 7<br> 2 8<br> for x?
Gnesinka [82]

Answer:

2856

Step-by-step explanation:

This question is a little unclear. 6 times 17 times 28 is equal to 2856 if that is what you are trying to ask.

4 0
2 years ago
3 divided by what gives you 24<br>​
Anarel [89]
What divided by 3 equals 24? In other words, you have an unknown number (X), and then if you divide that X by 3 you get 24. Then what is that X?

The equation to calculate what divided by 3 equals 24 is as follows:

X/3 = 24

Where X is the answer. When we solve the equation by multiplying each side by 3, you get get:

X = 72

Therefore, the answer to what divided by 3 equals 24 is 72.

Hope that helps
7 0
3 years ago
HELPPP PLEASEEE ILL GIVE B IF CORRECT AND EXPLAIN
timurjin [86]
Answer: 60 degrees

Explanation: If all angles are same, each angle is 60 degrees and adds up to 180.
6 0
3 years ago
Read 2 more answers
Does anyone know how to solve |4x+3|-9&lt;5
elixir [45]

Answer in fraction form:   -17/4 < x < 11/4

Answer in decimal form:   -4.25 < x < 2.75

=======================================================

Work Shown:

|4x+3| - 9 < 5

|4x+3| < 5+9 .... adding 9 to both sides

|4x+3| < 14

-14 < 4x+3 <  14 .... see note at the bottom

-14-3 < 4x < 14-3 .... subtracting 3 from all sides

-17 < 4x < 11

-17/4 < x < 11/4 .... divide all sides by 4

-4.25 < x < 2.75

This says that x is between -4.25 and 2.75, but x is not equal to either endpoint.

Note: I used the rule that |x| < k becomes -k < x < k where k is a positive real number.

6 0
2 years ago
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