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
Leona [35]
2 years ago
5

A reaction takes 4 min 28 sec to complete. Which of the following is a correct representation of that time period?

Mathematics
1 answer:
Ostrovityanka [42]2 years ago
7 0

Using proportions, the correct representation of that time period is of 4.47 minutes.

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount, and the measures are related using a rule of three. Due to this, relations between variables, either direct(when both increase or both decrease) or inverse proportional(when one increases and the other decreases, or vice versa), can be built to find the desired measures in the problem, or equations to find these measures.

We have that one minute has 60 seconds, hence the proportion that the 28 seconds correspond of a minute is:

28/60 = 0.47 min.

Hence the correct representation of that time period is of 4.47 minutes.

More can be learned about proportions at brainly.com/question/24372153

#SPJ1

You might be interested in
Raphael dives a standard-sized dump truck. The dimensions of the bed of the truck are length 25 feet,width 8 feet , and height 6
astra-53 [7]
25×8×6
1200 square feet
4 0
3 years ago
Read 2 more answers
Find the volume of the solid under the surface z = 5x + 9y 2 and above the region bounded by x = y 2 and x = y 3.
Yanka [14]
Call the region in the x-y plane, bounded by x=y^2 and x=y^3, \mathcal D. Then the volume under the given surface is

\displaystyle\iint_{\mathcal D}(5x+9y)\,\mathrm dA=\int_{y=0}^{y=1}\int_{x=y^3}^{x=y^2}(5x+9y)\,\mathrm dx\,\mathrm dy=\frac{83}{140}
8 0
3 years ago
Solve the quadratic equation by factoring-
shtirl [24]

Answer:

c- (2x+3)(x+1)

Step-by-step explanation:

Let me know if you want step by step

3 0
3 years ago
Help now pleaseeee!!!
Sliva [168]

Answer:

Step-by-step explanation:

Whitxh answer are u tryna get?

5 0
3 years ago
What is the value of a?
Juli2301 [7.4K]
Actually, the answer is not A, if you're saying A is the first choice above.  That's incorrect.  You will need to use the Geometric mean for right triangles here to figure out what the value of a is.  We will use this form: \frac{YZ}{WZ} = \frac{WZ}{XZ}.  We have a value for YZ of 3; side a is XZ.  That means in order to solve this we need WZ, which we can find using pythagorean's theorem.  3^2 + 4^2 = c^2 and 9 + 16 = c^2 and c = 5.  Now we fill in accordingly: \frac{3}{5}= \frac{5}{XZ}.  Cross-multiply to get 3XZ=25 and side XZ is \frac{25}{3}.  XZ is 25/3 and YZ is 3, so 25/3 - 3 = XY.  That means that XY (side a) = 16/3 or 5 1/3, choice B, or the second one down.
8 0
3 years ago
Other questions:
  • Explain how you find ordered-pair solutions of the equation 3x – 5y = 15, and then find two such solutions.'
    11·1 answer
  • Jana opened a savings account with
    7·1 answer
  • In aΔABC, if ∠B = 60° and the ratio of two sides is a : c = 2 : √3 + 1, then ∠A= ____.
    8·1 answer
  • HELP ASAP****
    9·1 answer
  • Find the radius of a circle with a circumference of 240 inches.*
    12·2 answers
  • Write the first five terms of each sequence. A geometric sequence with a common ratio of 3 and a first term of 1.​
    6·1 answer
  • Ok answer this question and i'll mark as brainliest and give u a cookie
    11·1 answer
  • What is the value of 4/15 ÷ 2/3​
    13·2 answers
  • An 18-foot flagpole casts a shadow 12 feet long forming a triangle as shown in the diagram. You are 5.75 feet tall and cast a sh
    11·1 answer
  • I NEED THE NOE HURRY!!!!!!! i will mark u Brainliest
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!