Hannah finds purple, blue, and silver space rocks while exploring.

2 answers:

8 0

To answer this, you will determine what fraction of the original rocks are silver by using the information about the other two colors.

If 2/3 of them area purple, than 1/3 are not.

If 3/4 of the remaining 1/3 is blue, than 3/4 x 1/3 = 3/12 of then are blue.

2/3 are purple, 3/12 of them are blue, the remaining is silver,

1 - 2/3 - 3/12
1 - 8/12 - 3/12 = 1/12

1/12 of the rocks are silver. If 3 are silver, write an equation that needs solved.

1/12r = 3
r = 36 rocks

There were 36 space rocks in total.

choli [55]3 years ago

5 0

Answer:

Step-by-step explanation:

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A white water rafting company sells tickets for an 18-mile river tri How much does it cost to travel one mile? Round your answer

Bas_tet [7]

Answer:

$14 per mile

Step-by-step explanation:

We know how much the 18-mile trip is for sale, so to know how much 1-mile sale we just have to divide the total amount by the amount of miles

18 miles = $ 249

1 mile =

1 mile = 249 / 18

1 mile = 13.83

To know what the nearest dollar value is, we only have to check if what is after the whole number is May or less than .50

is larger so we round to the largest number that is 14

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8 0

2 years ago

A marching band is rehearsing in rectangular formation. 1/5 of the marching band members play percussion instruments. 1/2 of the

Aleonysh [2.5K]

Answer:

Fraction of the whole band playing snare drum = $\frac{1}{2}*\frac{1}{5}=\frac{1}{10}$ of the whole band

Explanation:

We are given that:

Fraction of percussionists = $\frac{1}{5}$ of the whole band

Fraction of those playing snare drums = $\frac{1}{2}$ the percussionists

Now, to get the fraction of the whole band playing snare drums, we will need to multiply the fraction of percussionists by the fraction of percussionists playing snare drums

This is done as follows:

Fraction of the whole band playing snare drum = $\frac{1}{2}*\frac{1}{5}=\frac{1}{10}$ of the whole band

Hope this helps :)

5 0

3 years ago

The numbers 8,x,9 and 36 are in proportion.Find x

saveliy_v [14]

Answer:

x = 32

Step-by-step explanation:

$\frac{8}{x}$ = $\frac{9}{36}$ = $\frac{1}{4}$ ( cross- multiply )