Answer:
26
Step-by-step explanation:
isosceles traingle:
AB=BC
7x-13=x+29
x=7
AC= 3x+5
AC= 3(7)+5
AC= 26
okay so what you're gonna do is find the lcm (least common multiple) of four and seven (the days y'all water the plants.)
lemme get it started for ya.
7: 7, 14, 21...
4: 4, 8, 12, 16...
and once you find a number that they both have, it's your answer.
Hope there are y^(1/5) so than this mean 5 index radical of y
hope helped
Volume of first oil = A, volume of second oil = B, volume of mixture = M
A = ?, B = 4l, M = A + B
40%A + 25%B = 30%M
40%A + 25%4l = 30%(A+4l)
<span>40%A + 25%4l = 30%A + 30%4l
40A + 100l = 30A + 120l
40A - 30 A = 120l - 100l
10A = 20l
A = 2l
</span>
Answer: 2 litres of 40% oil dressing.
Also note: That's an approximation, because the volumes are not strictly additive. For example: mixing 50ml pure ethanol with 50ml water will give you about 95ml of mixture. To get an accurate answer, you'd have to measure the volume of the final mixture and then divide your total oil content by that<span>.</span>
The billiard balls without replacement.
Let's say there are 10 billiard balls 5 red and 5 blue.
If you pick a blue ball on the first pick you had a 5/10 chance
Now your chances of getting a red are only 5/9.
What happened on the first pick affects what happens on the second (making it dependent)
