2x - 5y = -20 ⇒ 4x - 10y = -40
3x + 2y = 20 ⇒ 15x + 10y = 100
19x = 60
19 19
x = 3³/₁₉
2x - 5y = -20
2(3³/₁₉) - 5y = -20
6⁶/₁₉ - 5y = -20
- 6⁶/₁₉ - 6⁶/₁₉
-5y = -26⁶/₁₉
-5 -5
y = 5⁵/₁₉
(x, y) = (3³/₁₉, 5⁵/₁₉)
The best approximation of the solution to the system of the nearest integer values are (4, 6), or (x, y) ≈ (4, 6).
Hello!
Let's follow the BEDMAS rule.
First we should do everything inside the brackets. According to BEDMAS we should do multiplication first before subtraction:
(28 × 5 - 5 × 190)
28 × 5 = 140
5 × 190 = 950
(140 - 950) = -810
So now we have:
(-810 - 2 × 5^-2) / 2^3
Next, we do exponents so:
5^-2 = 1/25
2^3 = 8
(-810 - 2 × 1/25) / 8
(-810 - 2/25) / 8
(-20252/25) / 8 = -5063/50
So now we have:
(-5063/50)^4 × 288
If we plug the first term into a calculator and out it to the party of 4, we get:
105136058.7
So that number times 288 we get:
3.03x10^10 as the Correct Answer
I Hope my answer has come to your Help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead! :)
Answer:
100
Step-by-step explanation:
Number = x
0.8x - 0.75x = 5
0.05x = 5
x = 100
Answer:
im not sure...cuz it says 50%
its either 11.625 or 5.8125
it is the 1st one if the question means all average but if not PROBABLY only PROBABLY the right one
Step-by-step explanation:
I added all the hours together and divided it by 24 to get 11.625 but if the ans is 5.1825 ill divide 11.625 over 2
Answer:
c.
Step-by-step explanation:
