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ddd [48]
3 years ago
12

Solve the system of equations. 2.5y + 3x = 27 5x – 2.5y = 5

Mathematics
1 answer:
worty [1.4K]3 years ago
3 0
X=4 and y=6
For this, you should use simultaneous equations
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Solve for x: 4|2x − 2| 10 = 34. (5 points) x = −4, x = 2 x = 4, x = −4 x = 2, x = −2 x = 4, x = −2
rusak2 [61]
<span>4|2x − 2| + 10 = 34
</span><span>4|2x − 2| + 10 - 10 = 34 - 10
</span><span>4|2x − 2| = 24
</span><span>|2x − 2| = 24/4 = 6
2x - 2 = 6 or 2x - 2 = -6
2x = 6 + 2 or 2x = -6 + 2
2x = 8 or 2x = -4
x = 8/2 or x = -4/2
x = 4 or x = -2

To check for extraneous solutions:
</span>For x = 4: <span>
4|2(4) − 2| + 10 = 34 
4</span><span>|8 − 2| = 34 - 10 = 24
6 = 24/4 = 6       (solution is valid)

</span><span>For x = -2: <span>
4|2(-2) − 2| + 10 = 34 
4</span><span>|-4 − 2| = 34 - 10 = 24
</span></span><span><span><span>|-6| = </span>6 = 24/4 = 6       (solution is valid)  </span>
</span>
Therefore, solutions are x = 4 , x = -2
7 0
3 years ago
"Use the chart above to determine the premium for 10 year term insurance. $12,000 policy for a 35-year-old female. Premium = ___
JulsSmile [24]
Option C) 63.48

The footnotes indicate that for female you have to use the rate for a male three years younger.

Then you have to use the rate for 32-year-old males, which is 5.29.

That rate is for evary $1,000 face value, the you have to calculate the premium in this way:

Premium = [5.29/1000]*$12.000 = 63.48


8 0
3 years ago
An angle measures 44° less than the measure of its complementary angle. What is the measure of each angle? ​
Alchen [17]

Answer:

One angle is 46° and the other angle is 44°

Step-by-step explanation:

Complementary angle means the angles add up to 90 so:

90 - 44 = 46

6 0
3 years ago
Name the triangle.<br> please help
omeli [17]

Answer:

c. right =90 that's the as

4 0
3 years ago
Read 2 more answers
Answer this for points and I will get points BUT PLS REALLY HELP ME
Lelechka [254]

Answer: 1 1/3


Step-by-step explanation: 7/15 plus 9/15 plus 4/15 equals 20/15 or 1 5/15. 5/15 divided by 5 equals 1/3. So the simplified answer is 1 1/3


8 0
3 years ago
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