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3 years ago

Please help me with this question

Mathematics

1 answer:

vovikov84 [41]3 years ago

5 0

B becuase if you divide the rise over run you get 45 which is the correct answer.
hope this helps
-turtles12345

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A spinner is divided into 4 equal sections colored red, green , blue and orange . Ennis spins the spinner. What is the probabili

zavuch27 [327]

Answer:

By thinking logically,here's hint: there are only 4 equal sections and 4 colors,all of them equal to=

$\frac{4}{4}$

no matter what color you take,for example green is 1/4,red is 1/4 as well.Eventually the answer is:the probability of orange color is 1/4 too.

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3 years ago

Is 1/2 an irrational number?

Vinvika [58]

Answer:

Yes, 1/2 is a irrational number

Step-by-step explanation:

This is the answer because (Google research):

A number is rational if we can write it as a fraction where the numerator and denominator are both integers. However, numbers like 1/2, 46485928/2628242, and -3/7 are also rational, since they are fractions whose numerator and denominator are integers.

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3 years ago

Tiffany created a spreadsheet detailing her expenses for the first six months of the year. According to her spreadsheet, which e

ivolga24 [154]

Answer:

groceries

Step-by-step explanation:

based on the market price the grocery price will change

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3 years ago

Read 2 more answers

A farmhouse shelters 8 animals. Some are sheep and some are geese. Altogether there are 20 legs. How many of each animal are the

Novosadov [1.4K]

Answer:

I think they have 2, I could be wrong though

Step-by-step explanation:

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3 years ago

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a boat travels upstream on the allegheny river for 2 hours. the return trip only takes 1.7 hours because the boat travels 2.5 mi

Gre4nikov [31]

To solve this we are going to use the speed equation: $S= \frac{d}{t}$
where
$S$ is speed
$d$ is distance
$t$ time

We know from our problem that the upstream trip takes 2 hours, so $t_{u}=2$ . We also know that the downstream trip takes 1.7 hours, so $t_{d}=1.7$ . Notice that the distance of both trips is the same, so we are going to use $d$ to represent that distance.
Now, lets use our equation to relate the quantities:

For the upstream trip:
$S_{u}= \frac{d}{t_{u} }$
$S_{u}= \frac{d}{2}$ equation (1)

For the downstream trip:
$S_{d}= \frac{d}{t_{d} }$
$S_{d}= \frac{d}{1.7}$ equation (2)

We know that the boat travels 2.5 miles per hour faster downstream, so the speed of the boat upstream will be the speed of the boat downstream minus 2.5 miles per hour:
$S_{u}=S_{d}-2.5$ equation (3)

Replacing (3) in (1):
$S_{u}= \frac{d}{2}$
$S_{d}-2.5= \frac{d}{2}$ equation (4)

Solving for $d$ in equation (2):
$S_{d}= \frac{d}{1.7}$
$d=1.7S_{d}$ equation (5)

Replacing (5) in (4):
$S_{d}-2.5= \frac{d}{2}$
$S_{d}-2.5= \frac{1.7S_{d}}{2}$
$2(S_{d}-2.5)=1.7S_{d}$
$2S_{d}-5=1.7S_{d}$
$0.3S_{d}=5$
$S__{d}= \frac{5}{0.3}$
$S_{d}= \frac{50}{3}$ equation (6)

Replacing (6) in (5)
$d=1.7S_{d}$
$d=1.7( \frac{50}{3} )$
$d= \frac{85}{3}$ miles

We can conclude that the boat travel $\frac{85}{3}$ , which is approximately 28.3 miles, in one way.

5 0

3 years ago