Answer:
Step-by-step explanation:
Given that Mike and Lisa are brother and sister. Mike has as many brothers as sisters, and Lisa has three times as many brothers as sisters
i.e. If Mike has x sisters, then he has x brothers.
i.e. no of sons in total = x+1 (including Mike)
No of daughters = x
Lisa's brothers = x+1 and and Lisa sisters = x-1 (exclusing Lisa)
Given that

Hence we find that there are 3 sons and two daughters in the family.
Answer:
Number 1.
Step-by-step explanation:
Largest 4: 4m
2nd Largest: 4m
Answer:
<em>x = 8 </em>
Step-by-step explanation:
3 ln 4 = 2 ln x ( <em>x > 0</em> )
ln
= ln
x² = 4³
x² = (2³)²
x = ± 2³
= 8
= - 8 ( strange root, does not satisfy the domain of given function )
<em>x = 8</em>
To solve this problem, we can set two equations.
Let x be the cost of coffee and y be the cost of latte.
Two coffees and one latte: 2x + y = 10.50
y=10.50 - 2x ...(1)
Three coffees and two lattes: 3x + 2y = 17.00...(2)
Put (1) into (2), we have:
3x + 2(10.50-2x) = 17.00
3x + 2(10.50) - 2(2x) = 17.00
3x + 21 - 4x = 17
Put the unknown to one side:
3x -4x = 17 - 21
-x = -4
When there are negative numbers on both sides, we can take the negative signs away:
x= 4
Therefore, cost of one coffee is A. $4.00.
Hope ot helps!
3k²+11k+6, or (k+3)(3k+2), which is the 3rd one. :)