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kotykmax [81]
3 years ago
7

What is the speed of a train that travels 52 kilometers in 3 hours?

Mathematics
2 answers:
Over [174]3 years ago
5 0

Answer:

17 km/hr

Step-by-step explanation:

Speed=

\frac{distance}{time}

so, since the units are the same, kilometer per hour and hour, we simply divide

that's

\frac{52}{3}

and that's 17.333 approximately 17km/hr

qaws [65]3 years ago
4 0

Answer:

17 km/h

Step-by-step explanation:

52:3=17.3≈17   km/hour

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If you eat a diet with 2,000 kilocalories and 45 percent of those calories come from protein, about how many grams of protein di
jekas [21]

The amount of Protein intake is 900 kilocalorie.

We have - 2000 Kilocalories of diet and 45 Percent of calories come from Proteins.

Wе have to find out the amount of protein intake.

<h3>If ' x ' students out of total ' n ' students in a class are infected by virus. Then, what percentage of students are infected.</h3>

Percentage of students affected are -  \frac{x}{n} \times 100

In the question given -

Let the amount of Protein intake be y.

Then -

45 = y % of 2000

45 = \frac{y}{2000} \times100

y = \frac{45\times2000}{100}

y = 900 Kilocalorie

Hence, the amount of Protein intake is 900 kilocalorie.

To solve more questions on Percentage, visit the link below-

brainly.com/question/14801224

#SPJ1

7 0
1 year ago
I need help with number five. Thank you much!
s344n2d4d5 [400]
Hey there.

For 5:

We already have been given all the information we need to solve for this- it's just really extensive, so bare with me here.

With our initial deposit of $150 in January, we give 10% of the current value in the following month. This means 10% of 150 will be deposited into the checking account in February, and so on for the rest. I will work this out.

10% of 150 = 15; we deposit $15 into the account in February.
10% of 165 = 16.5; we deposit $16.5 into the account in March.
10% of 181.5 = 18.15; we deposit $18.15 into the account in April.
10% of 199.65 = 19.965; we deposit $19.96 in May (as we don't have an economical value worth a thousandth of a dollar in this problem).
10% of 219.61 = 21.961; we deposit $21.96 in June.
10% of 241.57 = 24.157; we deposit $24.15 in July.
10% of 265.72 = 26.572; we deposit $26.57 in August.


Our total value is $292.29, although if we added the thousandths, we'd have $292.31; therefore your answer is going to be D.) $292.31

I hope this helps!
3 0
3 years ago
Penny wants to make a model of a beetle that is larger than life size. Penny says she is going to use a scaling factor of 7/12.
MakcuM [25]
It would be nonsense, as if the beetle were at normal size, then it would be considered 1/1 as a scale. If you wanted to increase it, you would increase the numerator.
4 0
2 years ago
Read 2 more answers
I WILL MARK BRAINIEST <br> PLEASE HELP ASAP
Leni [432]

Answer:

1: 4:15

2: 4/15

Step-by-step explanation:

I think Im right. I hope this helps you out!

7 0
2 years ago
Read 2 more answers
Simplify the expression.<br><br><br> Write your answer without negative exponents.
Phoenix [80]

Answer:

-5/ (x^19 * y^12)

Step-by-step explanation:

-15x^-10 * y ^ -3 * x^-9 * y^-9/3 (It's writing it like this.)

15 and 3 have a GCF of 3.

-5x^-10 * y^-3 * x^-9 * y^-9/1

Reduce similar occurrences. *twice in a row*

-5x^(-10 + (-9)) * y^(-3 + (-9))/1

Remove extra signs *twice in a row*

-5x^(-10 - 9) * y^(-3 - 9)/1

Remove extraneous 1.

-5x^(-10 - 9) * y^(-3 - 9)

Add integers.

-5x^-19 * y^-12

Negative powers change multiplication to division.

-5 / (x^19 * y^12) is the final answer.

Even with that, the simplified answer wouldn't have negative exponents because of the negative powers rule.

8 0
2 years ago
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