2 years ago

Aiden calculated the area of Triangle QRS finding half the product of 1.5 and 1.1. What error did Aiden make?

Mathematics

1 answer:

Gnom [1K]2 years ago

6 0

Aiden should have calculated
area = (1.1 * 5.4) / 2
because triangle area = half the base times the altitude.

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The school that Lisa goes to is selling tickets to the annual talent show. On the first day of ticket sales the school sold 4 se

kakasveta [241]

Let:
x = cost of senior citizen ticket
y = cost of student ticket

4x + 5y = 102
7x + 5y = 126

4x + 5y = 102
4x = 102 - 5y
x = (102 - 5y)/4
x = 102/4 - 5y/4

7x + 5y = 126
7(102/4 - 5y/4) + 5y = 126
(714/4 - 35y/4) + 5y = 126
-35y/4 + 5y = 126 - 714/4

note:
-35y/4 = -8.75y
714/4 = 178.5

-8.75y + 5y = 126 - 178.5
-3.75y = -52.5
y = -52.5/-3.75
y = 14

x = 102/4 - 5y/4
x = 102/4 - 5(14)/4
x = 8

x = cost of senior citizen ticket = $8/ea
y = cost of student ticket = $14/ea

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2 years ago

You went to the mall with $80. You spent 25% of your money on a pair of shorts and 65% of the remainder on sandals. How much did

swat32

25% of 80 is 20
65% of 20 is 13
Your answer is 13

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2 years ago

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Translate the algebraic phases<br> plz help due soon

Ivenika [448]

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