At three hours as car a has already traveled a hour which making it three therefore making car b equal 2 hours or in a math equation 40×3=car b and 60×2=car a
The SAT this year has a mean of 500 and a standard deviation of 50. What percent of students scored between 400 and 600?This is equivalent to a score of 500 ± 2 SD (2 standard deviations)= 0.9545
<span>hopes this helps :) :D :)</span>
Looking at the question, I'm assuming it has a mistake.
However, I will first attempt to solve it normally:
Simply combine like terms to get 5x = 180, and thus x = 36, and y = 72
The first mistake possibility is that the first equation should be <u>3x + 2y = 180</u>
If that is the case, simply substitute in 2x for y, turning the equation into
3x + 2 (2x) = 180
3x + 4x = 180
7x = 180
Thus, x = 25.715 and y = 51.43
Another possible mistake is that the first equation should be <u>3y + 2x</u><u> </u><u>= 180</u>
Solve similar to the first mistake
3 (2x) + 2x = 180
6x + 2x = 180
8x = 180
Thus, x = 22.5, and y = 45
Hope it helps :)
Answer:
z= 30
Step-by-step explanation:
Hope this helps answer your question(s). Please mark brainliest and enjoy the rest of your day!
The missing term of the sequence is 41
