Mathematics High School

Express 7 min.30sec.as a percentage of 1 hour .​

Answers

Answer 1

Answer:

well for me

Step-by-step explanation:

7 mins

7×60

=420

plus the 30sec

450 sec

450/3600×100

45000/3600

450/36

12.5

that's how I can help

Answer 2

The required percentage is 12.5% of 1 hour which equals 7 minutes 30 seconds.

What is the percentage?

The percentage is defined as a ratio expressed as a fraction of 100.

To express 7 minutes 30 seconds as a percentage of 1 hour, you first need to convert the time to a common unit, such as seconds.

One hour is equal to 60 minutes, so 7 minutes 30 seconds is equal to 7 × 60 + 30 = 450 seconds.

Next, you need to express the time in terms of the total number of seconds in an hour.

One hour is equal to 60 minutes, and one minute is equal to 60 seconds, so one hour is equal to 60 × 60 = 3600 seconds.

To find the percentage of 1 hour that 7 minutes 30 seconds represents, you would divide the number of seconds by the total number of seconds in an hour, and then multiply the result by 100% to convert it to a percentage.

Using the values above, the calculation would be as follows:

450 seconds / 3600 seconds × 100% = 12.5%

Therefore, 7 minutes 30 seconds is equal to 12.5% of 1 hour.

Learn more about the percentages here:

brainly.com/question/24159063

#SPJ5

Related Questions

the width of a rectangle is fifteen feet less than the length . if the area of the rectangle is 54 square feet , find the width .​
a. 3 ft
b. 6ft
c. 9 ft
d. 18 ft

Answers

Answer:

A

Step-by-step explanation:

A. 3 x 18 = 54

B. 6 x 21 = 126

C. 9 x 24 = 144

D. 18 x 33 = 594

f(3) if f(x) = 2x + 4

Answers

It would be 10
You substitute “x”for “3” so the equation would be 2(3) + 4. Then you multiply 2 and 3, which is 6. Finally add the 4 to get 10.

Hello does anyone know how to figure this out? - 3(4 + x) = x + 6

Answers

Answer:

-4.5

Step-by-step explanation:

-12-3x=x+6

-4x=18

x=-4.5

Answer:

-4.5=x

Step-by-step explanation:

First you would distribute the -3 to the 4 and x inside the parentheses

It would be -3 x 4= -12

Then  -3 x X= -3x

So your equation would now be -12+ -3x = x + 6

Now you add  3x to the -3x to cancel it out and then add it to the x

So your equation now looks like -12=4x +6

Then you subtract 6 from the 6 to cancel it out and add it to the -12

Now your equation looks like -18=4x

Then you divide 4 from the 4x to cancel it out and then divide 4 from the -18

Finally you have  -4.5=x

I'm unsure if this is correct but hopefully this helps :)

Identify the slope and p-intercept of the
equation 2x + 5y = 20

Answers

Answer:

slope: -2/5

y-intercept: (0,4)

Step-by-step explanation:

Please help me im very depressed and im struggling a lot on my math and i really need some answers

Which number sentence is true?

Answers

Answer:

A 8.565 < l-13.23l

Step-by-step explanation:

Because the brackets makes the -13.23 positive

C is true while the other choices are false

A bag contains 12 red marbles. The ratio of red marbles to blue marbles is 3 : 4. Find the number of blue marbles in the bag.

Answers

Answer:

16

Step-by-step explanation:

3 divided into 12 =4

4x4=16

4 divided into 16 =4 so 16

please help
Solve the system of equations.

2x − 5y = 3
x − 3y = 1


(4, 1)

(5, 2)

(7, 2)

(9, 3)
please explain how you got your answer if you can please

Answers

Answer:

(9,3)

Step-by-step explanation:

You can just substitute the answer choices in to the equation and see what option works for both equations.

4,1 I know this to be true

13. What is the algebraic notation of a figure is Translated 9
units right and 3 units down?

Answers

The answer is C

your x value tells you how far right or left you’re going
and the y value tells you how far up and down you’re going

Which angle or angles are co-terminal with 175 degrees? All angles below are in degrees. (Select all that apply.)

-185
-175
5
355
535
895

Answers

Bssbuscsuacuwcusccsucwu

I need help please help me pu

Answers

Answer:

D: x=12

Step-by-step explanation:

Can someone help plz

Answers

Answer:

See explanation

Step-by-step explanation:

x     f(x)

-2    -5.9375

-1     -5.75

0      -5

1       -2

2      10

x intercept : -5

y intercept : -6

Find the slope of the line that passes through (8,4) and (6,5)

Answers

Answer:

-1/2

Step-by-step explanation:

The equation for slope is y2 - y1 and x2 - x1. So you do 5(y2) - 4 (y1) which is 1. And 6(x2) - 8(x1) which is -2. Put 1 as the numerator and -2 as the denominator as you got -1/2. The fraction is negative because the -2 made it that way

2(x+2)^2-5=8 solve using square roots

Answers

Answer:

x=[tex]\sqrt 26[/tex]/2-2

Step-by-step explanation:

A car travels for 18 minutes at an average speed of 72 km/h.
(a) How far will the car travel in these 18 minutes?
appel

Answers

Answer:

~21.6 miles

Step-by-step explanation:

72:1 is 72mph

18 min is 30% of a hour

72 times .3

Can you answer at least one

Answers

Answer:

15. 88%

Step-by-step explanation:

I did division

Answer:

16. is 11550

Step-by-step explanation:

Estimate 73% of 23.95

Answers

Answer: 304.8

Step-by-step explanation;

7300:23.95 = 303.8

Answer:20

Because I looked it up

Sharon wants to buy a shirt that costs $70. The sales tax is 5%. How much is the sales tax? What is her total cost for the shirt?

Answers

Answer:

sales tax is $3.50.

She would have to pay $73.50

Step-by-step explanation:

5% of 70 is 3.5 (sales tax)

70+3.5= 73.5

. Find four consecutive odd integers such that the sum of the first and fourth is 55 greater than the opposite of the third.

Answers

Answer:

The four consecutive odd integers = 15, 17, 19, 21

Step-by-step explanation:

Four consecutive odd integers in Mathematics when x is an integer is given as:

x , x + 2 , x + 4, x + 6

Where:.

First integer = x

Second integer = x + 2

Third integer = x + 4

Fourth integer = x + 6

The sum of the first and fourth is 55 greater than the opposite of the third

Hence :

x + x + 6 = -(x + 4) + 55

x + x+6 = (-x - 4) + 55

2x + 6 = -x + 51

Collect like terms

2x + x = 51 - 6

3x = 45

x = 15

Therefore,

First integer = x = 15

Second integer = x + 2 = 15 + 2 = 17

Third integer = x + 4 = 15 + 4 = 19

Fourth integer = x + 6 = 15 + 6 = 21

The four consecutive odd integers = 15, 17, 19, 21

If you know the answer to this, pls let me know! Thanks!!!! :))))

Answers

Answer:

x= 30

Step-by-step explanation:

3x + 50 = 140

3x = 140 -50

3x = 90

x = 90/3

x = 30

Answer:

x = 30

Step-by-step explanation:

The given angles are vertical and congruent , then

3x + 50 = 140 ( subtract 50 from both sides )

3x = 90 ( divide both sides by 3 )

x = 30

. 4/2y - 31 - 1 = 11

Answers

Answer:

the correct answer is

y = 42

hope this helped :)

If yall help me with all the answers ill give you 32 points. Ik this is easy but I'm too lazy to do this. someone help me, please.

Answers

Answer:

100-both

75-5

565- 5

2815- 5

10050- both

57- 3

1365- 3

14- 2

81- 3

3850- 2

333- 9

1125- 9

448- 8

630- 9

5496- 8

114- 6

21,750- 6

3580- 4

2528- 4

944- 4

Step-by-step explanation:

need help with vertical angles ​

Answers

Answer:

ok what is thepromblem

Step-by-step explanation:

Answer:

whats up? whats tha questionn :)

Step-by-step explanation:

what is the range of this function?​

Answers

Step-by-step explanation:

The absolute maximum of the function is y = 4, at (3, 4).

Both ends of the function point downward, which stretches to negative infinity.

Hence the range is -infinity < y <= 4. (D)

PLS HELP MEEEEE
Exponents

Answers

Answer:

331.66

Step-by-step explanation:

125(1.05)^20

Find the approximate area of the shaded region of the figure below.

Answers

45:58 is the answer because if you add and subtract both sides it would equal the answers

PLEASE HELP URGENT‼️‼️

Tonia was simplifying the expression: (3x)2 . x4. She wrote 3x8 as the
simplest form.
——————————————
Part A) Simplify the problem correctly.
——————————————
Part B) Describe the error(s) that Tonya made.

Answers

Part A

(3x)^2*x^4

(3x)*(3x)*x^4 .... expand out (3x)^2

(3*3)*(x*x*x^4)

9x^6

Answer:  9x^6

============================================

Part B

It appears that Tonya forgot to square the 3 term and had this as her steps

(3x)^2*x^4

3x^2*x^4

3x^(2*4)

3x^8

Which is incorrect as the answer in part A indicates.

Not only is the '3' part wrong, but also the exponent of 8. Instead of multiplying the exponents, she should have added them.

The rule is a^b*a^c = a^(b+c). In this case, a = x, b = 2 and c = 4.

So x^2*x^4 = x^(2+4) = x^6

I WILL GIVE YOU BRAINLY PLSSS



The longest suspension bridge in the world is the Akashi Kaikyo Bridge in Japan. Its main

span is 1,290 feet longer than a mile. A mile is 5,280 feet.

Calculate the length of the Akashi Kaikyo Bridge.

A. 3,990 feet

B. 6,400 feet

C. 4,049 feet

D. 6,570 feet



PLSSS SHOW YOUR WORK PLSSS

Answers

D) 6570 feet

5280 + 1290= 6570

A square parking lot has an area of 12,996 square yards. a. What is the length of one side of the parking lot? b. How many yards of fence will it take to enclose the entire parking lot?

Answers

Answer:

114 yards

456 yards

Step-by-step explanation:

Given that:

Area of square parking lot = 12,996 square yards

The lenght of one side of the parking lot :

Area of a square = a² ; a = side length

Hence ;

12996 = a²

√12996 = a

114 = a

Hence, length of one side = 114 yards

Yards of fence needed to enclose parking lot :

Perimeter of a square = 4a ; a = side length

Perimeter = 4(114)

Perimeter = 456 yards

How many solutions does the equation have -2 (-4x + 7) = -2 + 4x One Solution Infinite Solutions No Solution? ​

Answers

One solution x=3
-2(-4x+7)=8x-14=-2x+7
8x-4x-14=-2
4x=-2+14
4x/12
X=3

Evaluate for f(-2).
f(x) = 8x-10

Answers

Answer: f(-2) = -26

Step-by-step explanation:

Substitute -2 in x, it would look like:

8(-2) - 10

-16 - 10

= -26

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