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
bezimeni [28]
3 years ago
15

I need help

Mathematics
2 answers:
Trava [24]3 years ago
5 0
The answer to that question is the sum of the hours he studied for on both days, which will be 1/4 + 3/8.

However, we cannot add fractions with different denominators. In this case, it's 4 and 8.

So if we want to add them, we must make the denominators similar to each other. How to make 4 into 8? We multiply it by 2: 4 x 2 = 8.

BUT when we multiply fractions, we must multiply both the numerator and the denominator by the same number to keep its original value. In this case, if you want to multiply 4 by 2, you must also multiply 1 by 2.

=> SO to make 1/4 into y/8, we will multiply it like this (1 x 2) / (4 x 2) = 2/8

Now we can add the 2 fractions together. 2/8 + 3/8 = (2 + 3)/8 = 5/8. THIS IS YOUR ANSWER.

TL;DR: He studied 5/8 (or 0.625) hour altogether on both days.
mario62 [17]3 years ago
5 0
The answer is 5/8 hours

You just need to sum it up:
\frac{1}{4} + \frac{3}{8} = \frac{1*2}{4*2} + \frac{3}{8}= \frac{2}{8}+ \frac{3}{8}=\frac{2+3}{8}=\frac{5}{8}
You might be interested in
Of the following sets, which represents a function? (1 point)
yKpoI14uk [10]

Answer: Only B

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

Explanation:

For situation A,

  • x is the input and it represents the student's name.
  • y is the output and it represents the colors the student likes.

The pairing (x,y) tells us what a certain student likes in terms of color.

For example, the point (Allen, Red) tells us that Allen likes the color red. We could also have (Allen, Green) telling us he also likes green. Because the input "Allen" maps to more than one output, this means situation A is not a function. A function is only possible if any given input maps to exactly to one output. The input must be in the domain. The domain in this case is the set of all students in the classroom.

In contrast, Situation B is a function because a student will only have one favorite math teacher. I'm interpreting this to mean "number one favorite" and not a situation where a student can select multiple favorites.

7 0
3 years ago
What is the greatest common factor of 28 and 46?
tester [92]
28=2*2*7=2²*7; 46=2*23=>the greatest common factor is 2
8 0
2 years ago
Read 2 more answers
Let g be the function given by g(x)=limh→0sin(x h)−sinxh. What is the instantaneous rate of change of g with respect to x at x=π
lorasvet [3.4K]

The <em>instantaneous</em> rate of change of <em>g</em> with respect to <em>x</em> at <em>x = π/3</em> is <em>1/2</em>.

<h3>How to determine the instantaneous rate of change of a given function</h3>

The <em>instantaneous</em> rate of change at a given value of x can be found by concept of derivative, which is described below:

g(x) =  \lim_{h \to 0} \frac{f(x+h)-f(x)}{h}

Where h is the <em>difference</em> rate.

In this question we must find an expression for the <em>instantaneous</em> rate of change of g if f(x) = \sin x and evaluate the resulting expression for x = \frac{\pi}{3}. Then, we have the following procedure below:

g(x) =  \lim_{h \to 0} \frac{\sin (x+h)-\sin x}{h}

g(x) =  \lim_{h \to 0} \frac{\sin x\cdot \cos h +\sin h\cdot \cos x -\sin x}{h}

g(x) =  \lim_{h \to 0} \frac{\sin h}{h}\cdot  \lim_{h \to 0} \cos x

g(x) = \cos x

Now we evaluate g(x) for x = \frac{\pi}{3}:

g\left(\frac{\pi}{3} \right) = \cos \frac{\pi}{3} = \frac{1}{2}

The <em>instantaneous</em> rate of change of <em>g</em> with respect to <em>x</em> at <em>x = π/3</em> is <em>1/2</em>. \blacksquare

To learn more on rates of change, we kindly invite to check this verified question: brainly.com/question/11606037

4 0
2 years ago
PLEASE HELP ME WITH THIS QUESTION ASAP. please and thank you
kotegsom [21]

To solve the given equation, you would need to multiply t by both terms inside the parenthesis.

The equation would be D. (t*14) - (t*5)

3 0
3 years ago
Could someone answer all 5 questions please
xeze [42]

Answer:

3=111

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • Which point is located at (Negative 3.5, Negative 4.5)? On a coordinate plane, point A is 3.5 units to the left and 4.5 units do
    15·2 answers
  • What is the value of x in the solution to the following system of equations?
    14·1 answer
  • A doctor estimates that a particular patient is losing bone density at a rate of 3% annually. The patient currently has a bone d
    11·2 answers
  • Which method can you use to prove these triangles congruent?
    13·2 answers
  • Help will give crown only REAL ANSWERS COMMENT IF YOU HAVE A QUESTION
    12·1 answer
  • PLEASE HELP ME PLEASE I NEED HELP AS FAST AS POSSIBLE
    10·2 answers
  • Joanne has 20 books on crafts and cooking. she has 6 more cookbooks than craft books. how many of each does she have?​
    15·1 answer
  • What is the slope of the function​
    13·1 answer
  • I really need help on some questions can you help....​
    6·1 answer
  • Jillene spends $240 on a new business the first month. If she spends 24% more each month, approximately how much will she spend
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!