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3 years ago

1. Find the surface area of a cylinder with diameter 24 mm and height 16 mm

Mathematics

1 answer:

arsen [322]3 years ago

7 0

24 times 16 is 384 mm

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Jack and Jill live 126 km apart. They want to leave their homes at the same time,

Digiron [165]

Answer:

Both will leave their homes to meet on time at 9 am

Step-by-step explanation:

Given as, Distance between Jack and Jill = 126 km

Speed of Jack rides = 18 kilometers per hours

Speed of Jill rides = 24 kilometers per hours

Let the distance travel by Jack = x km

And the distance travel by Jill = (126 - x ) km

Time taken by Jack and Jill = T hours

Now , Distance = Speed × Time

So, x = 18 × T

And 126 - x = 24 × T

Or, 126 - x = 24 × $\frac{x}{18}$

Or, 126 - x = x × $\frac{4}{3}$

Or, 378 - 3x = 4x

Or, 378 = 7x

i.e x = $\frac{378}{7}$ = 54 km

And distance travel by Jill = 126 - 54 = 72 km

So, time taken by Jack = $\frac{x}{18}$ = $\frac{54}{18}$

Or, Time taken by Jack = 3 hours

Similarly Time take by Jill = $\frac{72}{24}$ = 3 hours

∵ Both Jack and Jill will take 3 hours to meet at 12 : 00 pm

Hence, Both will leave their homes to meet on time at 9 am Answer

7 0

4 years ago

Alex purchased a new car for $28,000. The car's value depreciates 7.25% each year. What will be the value of the car 5 years aft

Vlad1618 [11]

7.25/100 = 0.0725 => 0.0725 × 28,000 = 2,030$
2030 × 5 = 10,150$ => 28,000 + 10,150 = 38,150$

7 0

4 years ago

Read 2 more answers

The angle measurements in the diagram are represented by the following expression

saul85 [17]

Answer:

A=B(alternate angle r equal)
8x-10=3x+90
8x-3x=90+10
5x=100
x=100/5
x=20

hope it helps.

8 0

3 years ago

A phone company charges $0.15 Per minute for the first three minutes and 0.08 for each additional minute find the cost of a 26 m

lord [1]

Answer: I meant to comment.

Step-by-step explanation: sorry

6 0

3 years ago

3х + Зу = 8<br> 2х - у = 5<br> what is the solution?????

patriot [66]

Answer:

x = 23/9

y = 1/9

Step-by-step explanation:

2x - y + y - 5 = 5 + y - 5

2x - 5 = y

3x + 3(2x - 5) = 8

3x + 6x - 15 = 8

9x/9 = 23/9

x = 23/9

2x - 5 = y

2(23/9) - 5 = y

46/9 - 5 = y

1/9 = y

8 0

3 years ago