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3 years ago

Jen traveled a distance of 170 miles in 2 hours and 45 minutes. Express her speed, in miles per hour, to the nearest tenth

2 answers:

7 0

61.80 miles per hour is Jen's speed.

Given:
170 miles
2 hours and 45 minutes

2 hours and 45 minutes is 2 45/60 in fraction and can be simplified to 2 3/4 in fraction.
2 hours and 45 minutes is 2.75 in decimal.

Let us use the decimal form for our time:

Speed = distance / time
= 170 miles / 2.75 hours
Speed = 61.818 miles per hour

61.818 miles per hour rounded to the nearest tenth is 61.80 miles per hour.

Vlad [161]3 years ago

6 0

Speed= distance /time
distnace=170 miles
t=2 hours + 45 minutes *(1 hora / 60 minutes=2 hours + 0.75 hours=2.75 hours.

Speed=170 mile / 2.75 hours=61.818...miles/hour≈61.8 miles/hour.

Solution: 61.8 miles/hour.

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Simplify the expression using the distributive property. –4(–3x + 11) 1. Distribute the –4 through the parentheses: -4(–3x) + (-

diamong [38]

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8 0

3 years ago

Read 2 more answers

12 is 90% of what number?<br><br><br> with steps

a_sh-v [17]

Answer:

<h3><u>Let's</u><u> </u><u>understand the concept</u><u>:</u><u>-</u></h3>

Here 12 is 90% of a number.
So we can say that 90% of That number is 12 .
In this way we can get the the number

<h3><u>Solution</u><u>:</u><u>-</u></h3>

Let,

the number=x

<h3>According to the question ,</h3>

${:}\longrightarrow$ $\sf 90\% \:of \;x=12$

We know 90%=90/100
so add it

${:}\longrightarrow$ $\sf {\dfrac {90}{100}}\times x=12$

${:}\longrightarrow$ $\sf {\dfrac {90x}{100}}=12$

Now use cross multiplication method

${:}\longrightarrow$ $\sf 90x=12\times 100$

${:}\longrightarrow$ $\sf 90x=1200$

Now interchange sides .

${:}\longrightarrow$ $\sf x={\dfrac {1200}{90}}$

${:}\longrightarrow$ $\sf x={\dfrac {200}{15}}$

Answer will come in decimals so we take approximate value.

${:}\longrightarrow$ $\sf x=13.3$

${:}\longrightarrow$ $\sf x=approximately \:13$

$\therefore$ The number is 13.

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3 years ago

Is -6.175 is an irrational number?

kipiarov [429]

No.

Any number you can write completely is a rational number.
Any number with a repeating decimal fraction is also a rational number.
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Any number that goes on forever without repeating is an irrational number. These are usually represented symbolically (because they cannot be written "exactly" any other way). These include such numbers as √2, π, e, ∛(-4), and an infinite number of others.

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3 years ago

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sergejj [24]

Answer:

Step-by-step explanation:

34/2=17

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2 years ago

How do you round money to the nearest cent?Like for ex.:$2.15 to the nearest cent

Digiron [165]

To round money to the nearest cent you would see in the ones place what that number is and if it is at or higher than 5 it would round up to 2.20

Did that help any I hope so:) if not tell me I will have another strategy

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3 years ago