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1 year ago

11

Twelve students have an equally likely chance of being selected in a drawing at school. Eight are 7th graders and four are 8th g

raders. What is the probability that an 8th grader will be selected?

1 answer:

rewona [7]1 year ago

6 0

1/3 or 33.33333% chance that an 8th grader will be selected

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Name two solutions for each inequality.

ahrayia [7]

So,

#1: $n \geq 3 \frac{11}{16} + 4 \frac{1}{2}$

Convert to like improper fractions.
$n \geq \frac{59}{16} + \frac{72}{16}$

Add.
$n \geq \frac{131}{16}\ or\ 8 \frac{3}{16}$

So, one solution could be $8 \frac{3}{16}$ .

Another solution could by 9. There is also 10, 11, 12, etc., and all numbers in between.

#2: $k \ \textless \ 6 \frac{2}{5} * 15$

Convert into improper fraction form.
$k \ \textless \ \frac{32}{5} * 15$

Multiply.
$\frac{(2^5)(3)(5)}{5}$

Cross-cancel, and we have our final result.
$(2^5)(3) = 96$
k < 96

96 is not a solution.

95 is a solution.

So is 94, 93, 92, etc, and all numbers in between.

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2 years ago

Lucy rides her bike 20 kilometers every week. How many kilometers does Lucy ride her bike in 7 weeks

lutik1710 [3]

Lucy ride 140 kilometers in 7 weeks :)

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2 years ago

Read 2 more answers

Use the data in the table to write a multiplication story for the number fact. Solve 2x6=

Afina-wow [57]

6*2=12.
You have not included a table so I assume this is the answer you want.

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2 years ago

What number can be written as 3 hundreds 7 tens 5 ones?

algol13

I believe the answer is 375

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3 years ago

Question: A doctor prescribes 600 milligrams of a therapeutic drug that decays by about 13% each hour. Write an equation in base

UkoKoshka [18]

Answer: A = 600( $0.87^{h}$ )

Step-by-step explanation:

The rate = 13% = 0.13

Let I be the initial value = 600 mg

The Equation will be

A = I (1 - R%) $x^{h}$

A = 600( 1 - 0.13) $x^{h$

A = 600( $0.87^{h}$ )

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3 years ago