2 years ago

How do I solve these measurement problems?

1 answer:

4 0

You can either try it with a ruler or a long rules probably the long ruler for the bigger numbers. But either could be good

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7th grade math help me please :)

natka813 [3]

Answer:

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3 years ago

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Solve these 3 questions.

BaLLatris [955]

Answer:

1. x = 13

2. x=17

3. y= 34

Step-by-step explanation:

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2 years ago

Jake is trying to mail a package to his grandmother. He already has s stamps on the package. The postal worker tells him that he

Delicious77 [7]

(S stands for stamps)

S x 2 + 3
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3 years ago

Please help me find out what x=

Lunna [17]

X = 47
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3 years ago

How many five-card hands (drawn from a standard deck) contain exactly three fives? (A five-card hand is any set of five differen

VashaNatasha [74]

Answer:

4512.

Step-by-step explanation:

We are asked to find the number of five-card hands (drawn from a standard deck) that contain exactly three fives.

The number of ways, in which 3 fives can be picked out of 4 available fives would be 4C3. The number of ways in which 2 non-five cards can be picked out of the 48 available non-five cards would be 48C2.

$4C3=\frac{4!}{3!(4-3)!}=\frac{4*3!}{3!*1}=4$

$48C2=\frac{48!}{2!(48-2)!}=\frac{48*47*46!}{2*1*46!}=24*47=1128$

We can choose exactly three fives from five-card hands in $4C3*48C3$ ways.

$4C3*48C3=4*1128=4512$

Therefore, 4512 five card hands contain exactly three fives.

4 0

3 years ago