The total paid was $345. Twenty students cost $100.00. $345-4100=$245
245/3.50=70 additional students. 70+20=90 students went on the tour
12(3-2x) = 84
do distributive multiplication:
12(3) + 12(-2x) = 84
36 - 24x = 84
Deduct 36 to both sides
36 - 36 - 24x = 84 - 36
-24x = 48
divide -24 to both sides
-24x / -24 = 48/-24
x = -2
To check:
12(3-2x) = 84
12(3-2(-2) = 84
12(3+4) = 84
12(7) = 84
84 = 84
Add all flowers to get denominator
4+3+4=11
now add carnations and roses
3+4=7
so your answer is
7/11 chance
4 sq.units
area of a rectangle = length × breadth
length = 4units
breadth = 1units
A = l × b
= 4 × 1
= 4 sq.units
<h3>
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