Left side: (equation) 2/x=3/90 (multiply them together by cross multiplying. 90x2 divided by 3)
=60

Altogether: 90 (right) + 60 (left) =150 seats in total

4 0

3 years ago

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How do you solve a/7+5/7=2/7

Anton [14]

$\frac{a}{7} + \frac{5}{7} = \frac{2}{7} \\ \frac{a + 5}{7} = \frac{2}{7} \\ 7(\frac{a + 5}{7}) = 7(\frac{2}{7})$
a + 5 = 2
a + 5 - 5 = 2 - 5
a = -3

Hope this helps! :)

4 0

3 years ago

During a weekend the manager of a mall gave away gift cards to every 80th person who visited the mall. On saturday 12010 on sund

inysia [295]

Answer:

172.8 people got a gift card

Step-by-step explanation:

12,010 + 1,814 = 13,824 divided 80

= 172.8 people got a gift card

6 0

3 years ago