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3 years ago

What is the surface area of the rectangular prism? 324 cm 2 288 cm 2 120 cm 2 216 cm 2

Mathematics

2 answers:

aev [14]3 years ago

4 0

It’s 288 centimeters bc 2(6•12+4•6+4•6) =288

PIT_PIT [208]3 years ago

3 0

Answer:

it 288 cm.

i had this on my final exam and it was correct.

ur welcome. thank me later

Step-by-step explanation:

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Joan and her brother Justin left a hotel at the same time, driving in opposite directions at constant rates. After traveling for

inessss [21]

Answer:

Joan drive with a speed of 55 miles per hour.

Step-by-step explanation:

Given:- Travelling time (t) = 4 hours.

Travelled distance (d) = 480 miles.

Speed of Justin is 10 miles per hour faster than Joan.

To find:- Speed of Joan = ?

Solution:-

Let speed of Joan be x,

therefore speed of Justin = x+10 ---------------(from given)

Now, Total speed of Joan and Justin = x+x+10

Total speed of Joan and Justin = 2x+10 ------------(1)

Now formula for speed is,

Speed = $\frac{distance}{time}$

$2x+10=\frac{480}{4}$ -------------(from 1 and given)

$2x+10=120$

$2x=120-10$

$2x=110$

$\therefore x=\frac{110}{2}$

$\therefore x= 55$

as x is the speed of Joan,

Therefore Joan drive with a speed of 55 miles per hour.

6 0

3 years ago

Read 2 more answers

Ramesh is buying a new bike helmet. The price of the helmet is $60 and there is a 5% sales tax. Ramesh wants to know the total p

iren [92.7K]

Answer:

63.00

Step-by-step explanation:

Got it right

7 0

4 years ago

Hi can someone pleasee help?

USPshnik [31]

Answer:

C. 28.26cm^3

Step-by-step explanation:

In tne formula V= (1/3) pi*r^2*h,

r represents the radius of the base and h represents thr height of the cone.

In this diagram, R is the radius of the base and H is the height of the cone.

Therefore, simply substitute the value of R into r and the value of H into h using the given formula and round your answer to two decimal places.

8 0

3 years ago

Read 2 more answers

The sum of four siblings ages is 71. The second child’s age is twice the youngest, the third child’s age is twelve more than the

user100 [1]

Answer: 9, 18, 21, and 23 respectively

Step-by-step explanation:

To solve any problem like this, you want to assign a variable to each child because you dont know their age. So lets write an equation and assign variables to these children.

r = first child (youngest)

x = second child

y = third child

z = fourth child (oldest)

We know that r + x + y + z = 71

We also are given info on the comparisons of their ages.

r = r

x = 2r (2 times the youngest)

y = 12 + r (12 more than the youngest)

z = 3r - 4 (4 less than 3 times the youngest)

That was the easy part tbh, now we have to solve for 'r'. We can see that all the ages are a function of the same variable (r), and we know the sum of them is equal to 71. So lets solve for r and then plug that r value into each equation we just derived.

Child #1 (youngest)

$r+2r+(12+r)+(3r-4)=71\\3r+12+r+3r-4=71\\7r+12-4=71\\7r+8=71\\7r=63\\r=9yrs$

Child #2

$x=2*9=18yrs$

Child #3

$y=12+r=12+9=21yrs$

Child #4 (oldest)

$z=3r-4=(3*9)-4=27-4=23yrs$

Fact Check:

$9+18+21+23=71$

8 0

3 years ago

What’s the equivalent of 50000

dezoksy [38]

Is this for money? Do you want an equivalent fraction? Please be more specific, but I'll imply a couple of options.

FOR MONEY:

50,000 euros is 55142.50 dollars

50,000 dollars is 45337.08 euros

Is 50,000 US dollars a good salary? In my opinion, yes. If you are a single person, and you work an office job from 9 to 5, then yes, that is a good salary.

MATH/NUMBERS:

50,000 = 100,000 ÷ 2

50,000 = 200,000 ÷ 4

50,000 = 25,000 × 2

50,000 = 12,500 × 4

There are other examples that could be used for both money and math, but I would not be able/do not have the time to list them all.

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I hope this helps!

<h2>PLEASE MARK BRAINLIEST!</h2>

5 0

4 years ago