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
ICE Princess25 [194]
3 years ago
11

What do you add to 2 7/8 to make 5

Mathematics
1 answer:
qwelly [4]3 years ago
5 0

Answer:

2 1/8

Step-by-step explanation:

7/8 is the same as 0.875 and therefore you need 0.125 also known as 1/8 to make it a whole number. When you add it to the already existing whole 2 you get three. Subtract three from five to make two which is what you need to add on top to finally get 5.

You might be interested in
-6(y + 15) = -3y + 6 what is the value of y
Serga [27]

Let's begin by listing out the information given to us:

-6\mleft(y+15\mright)=-3y+6

We are to find the value of y

undefined

6 0
1 year ago
<img src="https://tex.z-dn.net/?f=4x%20-%2010%20%3D2" id="TexFormula1" title="4x - 10 =2" alt="4x - 10 =2" align="absmiddle" cla
Citrus2011 [14]
If I’m correct it should be X=3
6 0
3 years ago
Read 2 more answers
Why are the solutions on the interval 0 &lt; x &lt; 360 <br> Solve the equation cos (x/2) = cos x+ 1
garri49 [273]

Answer:

lesss go

Step-by-step explanation:

6 0
3 years ago
For y = 3x - 2x2 +5x3, show how to find the value for y, when x = 3. Show your work
Lelechka [254]

Answer:

y= 126

Step-by-step explanation:

The given equation is: y= 3x-2x^2+5x^3

Substituting the value x=3 in the above equation,we get

   y= 3(3)-2(3)^2+5(3)^3

⇒y= 9-2(9)+5(27)

⇒y= 9-18+135

⇒y= 126

5 0
3 years ago
Read 2 more answers
A substance with a half life is decaying exponentially. If there are initially 12 grams of the substance and after 70 minutes th
77julia77 [94]

Answer: 233 min

Step-by-step explanation:

This problem can be solved by the following equation:

A=A_{o} e^{-kt}  (1)

Where:

A=7 g is the quantity left after time t

A_{o}=12 g is the initial quantity

t=70 min is the time elapsed

k is the constant of decay for the material

So, firstly we need to find the value of k from (1) in order to move to the next part of the problem:

\frac{A}{A_{o}}=e^{-kt}  (2)

Applying natural logarithm on both sides of the equation:

ln(\frac{A}{A_{o}})=ln(e^{-kt})  (3)

ln(\frac{A}{A_{o}})=-kt  (4)

k=-\frac{ln(\frac{A}{A_{o}})}{t}  (5)

k=-\frac{ln(\frac{7 g}{12 g})}{70 min}  (6)

k=0.00769995 min^{-1}  (7)  Now that we have the value of k we can solve the other part of this problem: Find the time t for A=2 g.

In this case we need to isolate t from (1):

t=-\frac{ln(\frac{A}{A_{o}})}{k}  (8)

t=-\frac{ln(\frac{2 g}{12 g})}{0.00769995 min^{-1}}  (9)

Finally:

t=232.697 min \approx 233 min

5 0
3 years ago
Other questions:
  • How do you know if a relationship between two quantities is NOT proportional?​
    10·1 answer
  • The probability for event A is 0.4, the probability for event B is 0.2, and the probability of events A and B is 0.1.
    12·1 answer
  • When using fraction strips, how do you know that two fractions are equivalent?
    7·1 answer
  • 8 divided by $36.00=
    14·1 answer
  • In the polynomial 4x – 3x2 +5, which choice is the ” constant term "?
    9·1 answer
  • X+4-3x=4+12x qual é o calculo e o resultado dessa operação
    11·1 answer
  • Which stamen
    11·1 answer
  • The captain of a boat knows that a lighthouse on the coast is 100 ft
    5·1 answer
  • The area of a circle is 320 square meters. Find the radius of the circle. Then find the circumference. Round your answers to the
    9·2 answers
  • PLEASE ANWSER FAST!!
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!