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3 years ago

15

A math teacher gave her students two tests. On the first test, 80% of the class passed the test, but only 30% of the class passe

d both tests.
What is the probability that a student passes the second test, given that they passed the first one?

1 answer:

geniusboy [140]3 years ago

6 0

55% because you add 80% and 30% which is 110% and divide that by 2.

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3 years ago

A necklace has and matching bracelet have two types of beads. The necklace has 12 large beads and 8 small beads and weighs 88 gr

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Step-by-step explanation:

Let,

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Weight of one small bead = y

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3 years ago

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Shalnov [3]

Answer:

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Step-by-step explanation:

The triangle is split into two similar triangles. They have the same shape but not the same size. To solve, write a proportion.

$\frac{56}{44.8}=\frac{35}{x+4}$

Cross multiply to solve for x.

56(x+4) = 44.8(35)

56x + 224 = 1,568

56x = 1,344

x= 24

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3 years ago