10 adults + 5 children = $75 ------------- (1)
8 adults + 10 children = $78 ------------- (2)
(1) x 2 : 20 adults + 10 children = $150 ------------- (1a)
(1a) - (2) : 12 adults = $72
1 adult = $6
Substitute 1 adult = $6 into (1):
10 ($6) + 5 children = $75
$60 + 5 children = $75
5 children = $15
1 child = $3
Therefore 1 adult = $6 and 1 child = $3
Find 6 adult and 10 children:
6 adults + 10 children = 6(6) + 10(3) = 36 + 30 = $66
Answer: $66
X=-2 because you need to subtract 35 from both sides which you get -10 then that divided by 5 will be -2
Answer:
$190.75
Step-by-step explanation:
$175 × 0.09 = $15.75
$175 + $15.75 = $190.75
Answer:$9504.80
Step-by-step explanation:
Every year, we have an increase of 9% interest. After two years, we will have 8000 * 1.09 ^2 = $9504.80
Answer:
Im pretty sure it's 5.25 cups of flour
Step-by-step explanation:
so we know that it takes 3 cups for 8 people and we don't know the amount for 14 people so write it as a fraction and cross multipy
For the equation
8/3=14/x
The cross product is
8*x=3*14
Solving for x
x=3×14/8
and reducing
x=5.25
