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3 years ago

Faz um bom tempo que não faço expressões numéricas,vcs podem me ajudar!

Mathematics

1 answer:

Alekssandra [29.7K]3 years ago

6 0

Answer:

English Plz

Step-by-step explanation:

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A car travels to 253 miles in eight hours how far can you travel in seven hours?

slava [35]

<h2><u>DIRECT RULE OF 3</u></h2>

We use a rule of 3 to solve it.

Let's record the data:

253 miles → 8 hours

‎ x miles → 7 hours

‎

Let's solve:‏‏‎

$\mathsf{x = \dfrac{7(253)}{8}}$

$\mathsf{x = \dfrac{1771}{8}}$

$\large{\boxed{\mathsf{x = 221,375}}}$

‎ ‏‏‎

<h3><u>Answer</u>. The car can travel 221,375 miles in seven hours.</h3>

‎

8 0

3 years ago

Someone please answer

Doss [256]

Answer:

59.6

Step-by-step explanation:

7 0

3 years ago

Solve the formula V=pir^2h for r <br><br> PLEAASSSEEE HELP

otez555 [7]

Answer:

Step-by-step explanation:

So we have the formula:

$V=\pi r^2h$

And we want to solve it for r.

So, let's first divide both sides by π and h. This will cancel out the right side:

$r^2=\frac{V}{\pi h}$

Now, take the square root of both sides:

$r=\sqrt{\frac{V}{\pi h}}$

And we're done!

Our answer is B.

I hope this helps!

7 0

3 years ago

Read 2 more answers

If the area of a square is 100 cm2, what is the perimeter?<br>

Vitek1552 [10]

Answer:

Step-by-step explanation:

To find the perimeter, first we need to find the side lengths.

If 100 cm is the area then we need to find what number squared is 100

10 x 10 = 100

So 10 is the side length. P= s + s + s +s

10 + 10 + 10 +10 = 40

6 0

3 years ago

Mr. See weights his grades. Tests are worth 60%, quizzes are worth 25% and homework is 15%. Joey's test average is an 82, his qu

goldenfox [79]

Answer:

83.15

Step-by-step explanation:

Joey's current grade can be determined by weighting his scores with the weights given and adding the results

Tests = 0.6 x 82 = 49.2

Quizzes = 0.25 x 77 = 19.25

homework = 0.15 x 98 = 14.7

49.2 + 19.25 + 14.7 = 83.15

4 0

3 years ago