1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Trava [24]
2 years ago
10

2. Write an algebraic expression for the total number of minutes in h hours and 20 minutes.

Mathematics
1 answer:
elixir [45]2 years ago
7 0

Answer:

The expressions are:

2. 60h+20\ minutes

3. 2+\frac{x}{60}\ hours

4. y+0.75\ hours

Step-by-step explanation:

The given expressions have to be converted into algebraic expressions.

So,

2. Write an algebraic expression for the total number of minutes in h hours and 20 minutes.

Here,

h is a variable that can have any value but the 20 minutes will remain same with any number of hours.

If h is for hour, the number of minutes in h hours will be: 60*h = 60h

And there are also 20 minutes so the algebraic expression is:

60h+20\ minutes

3. Write an algebraic expression for the total number of hours in 2 hours and x minutes.

In order to convert minutes into hour, the minutes are divided by 60

So converting x minutes into hour means

x\ minutes = \frac{x}{60}\ hours

There are 2 hours already so the expression will be:

2+\frac{x}{60}\ hours

4. Write an algebraic expression for the total number of hours in y hours and 45 minutes.

Converting 45 minutes to hours by dividing by 60

45\ minutes = \frac{45}{60}\ hours = 0.75\ hours

The expression is:

y+0.75\ hours

Hence,

The expressions are:

2. 60h+20\ minutes

3. 2+\frac{x}{60}\ hours

4. y+0.75\ hours

You might be interested in
What is the result of adding these twice equations? <br><br> 5x-y=6 <br><br> -2x+y=8
LenKa [72]

Answer: 3x=14

X=14/3

y=52/3

Step-by-step explanation:

5x-y-2x+y=6+8

3x=14

X=14/3

Y=8+2x

Y=8+28/3

Y=52/3

6 0
2 years ago
What is the solution to this linear system?
seropon [69]
The answer is (-1,7)

I got this answer because to solve a system, you find the point on the graph where both lines intersect. And that point in this graph is (-1,7). Hope this helps!:)))))
5 0
2 years ago
Which pair shows equivalent expressions?
Dmitry_Shevchenko [17]

Which pair shows equivalent expressions?

A.2(2/5x + 2)=2 2/5x + 1

B.2(2/5x + 2)=4/5x + 4

C.2(2/5x + 4)=4/5x + 2

D.2(2/5x + 4)=2 2/5x + 8

Solution:

2(\frac{2}{5}x + 2)

Let us distribute 2 inside the parenthesis.

That is, we use distributive property:

a(b+c)=ab+ac

2(\frac{2}{5}x + 2) =\frac{2*2}{5}x+2*2

So, 2(\frac{2}{5}x + 2) =\frac{4}{5}x+4

Answer:Option (b)

2(\frac{2}{5}x+4)

Applying distributive property, a(b+c)=ab+ac

2(\frac{2}{5}x+4) =2*\frac{2}{5} x+2*4

2(\frac{2}{5}x+4) =\frac{2*2}{5} x+2*4

2(\frac{2}{5}x+4) =\frac{4}{5} x+8

So, Option (B) is correct.

8 0
3 years ago
Read 2 more answers
What is the length of the hypotenuse of the triangle when x=10​?
Schach [20]

Answer:

84 (nearest whole number)

Step-by-step explanation:

If x = 10,

Longest leg = (7 x 10) + 4 = 74

Shortest leg = 4 x 10 = 40

Using Pythagoras' Theorem a² + b² = c² (where a and b are the legs and c is the hypotenuse of a right triangle):

⇒ 74² + 40² = c²

⇒ 7076 = c²

⇒ c = √7076 = 84.11896...

⇒ hypotenuse = 84 (nearest whole number)

5 0
2 years ago
Read 2 more answers
Help me 7th grade math please
Stolb23 [73]

Answer: 13.5 ounce bottle for $2.19

a 29.2 ounce bottle for $5.37

The 29.2 ounce bottle is better

Step-by-step explanation:

13.5 ounce bottle for $2.19

a 29.2 ounce bottle for $5.37

find the ratios

13.5/2.19 = $6.16 per unit

29.2/5.37 = $5.44 per unit

3 0
2 years ago
Other questions:
  • If a pans radius is 4 inches what is the circumference of the pan rounded to the nearest hundredth
    7·1 answer
  • Increase 120cm by 24%. Please help. Homework due tomorrow. Thanks
    6·1 answer
  • Determine the domain and range for the inverse of f(x) = 1/4x + 2
    10·1 answer
  • Help me please !!!!!!!!
    9·1 answer
  • An oak tree is 60 ft cast a 40ft shadow how far is it from the top of the shadow to top of tree
    10·2 answers
  • Joshua spends 25 minutes of each day reading. Let d be the number of days that he reads, and let m represent the total minutes o
    11·1 answer
  • A pool company is creating a blueprint for a family pool and a similar dog pool for a new client. Which statement explains how t
    14·2 answers
  • And question 2 is use your knowledge of central and inscribed angles to find M.
    11·1 answer
  • Help plz due very soon
    14·2 answers
  • Find missing part of the until rate 40students/5groups = ??/??
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!