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Keith_Richards [23]
4 years ago
7

Solve for y. d = 5x + 5y

Mathematics
2 answers:
kykrilka [37]4 years ago
6 0
<span>d = 5x + 5y
5y = d - 5x
  y = (d - 5x) / 5</span>
alexgriva [62]4 years ago
5 0

@Choixongdong is right, I just took the test. Good job.

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Mitchell wants to order CDs on the Internet. Each CD costs $15.99, and shipping for the entire order is $9.99. Mitchell has no m
katovenus [111]

Answer:

maximum 5 CDs

Step-by-step explanation:

Let Mitchell can order a maximum of x CDs

It has been given that each CD costs $15.99, and shipping for the entire order is $9.99.

Thus, we have the total cost for x CDs

15.99x+9.99

Now, Mitchell has no more than $100 to spend. It means

15.99x+9.99

Subtract 9.99 to both sides

15.99x

Divide both sides by 15.99

x

Hence, Mitchell can order maximum 5 CDs

8 0
4 years ago
Read 2 more answers
A fair coin is tossed four times. What is the probability that the number of heads appearing on the first two tosses is equal to
alekssr [168]

Answer: 3/8

Step-by-step explanation:

Since it is a fair coin, then generally, P(Head) = P(Tail) = ½

And since we've been asked to find the probability that the number of heads in the first two tosses be equal to the number of heads in the second two tosses, tossing a fair coin four times, the possible outcomes of having equal number of heads in first two tosses and second two tosses becomes:

[HHHH] or [HTHT] or [THTH] or [TTTT] or [HTTH] or [THHT]

=[½*½×½*½] + [½*½×½*½] + [½*½×½*½] + [½*½×½*½] + [½*½×½*½] + [½*½×½*½]

=1/16 * 6

=6/16

=3/8.

8 0
3 years ago
Use Euler’s method to estimate the value of y(20). Use a step size of ∆x = 5. Please fill out the remainder of the chart complet
crimeas [40]

Answer:

y(20)=14,322

Step-by-step explanation:

We need to solve the equation:

dy/dx=0.4xy

with initial point

y(0) = 2

with incerments

\Delta x=h=5

By Euler's method, we have:

y(x+h)=y(x)+h*f'(x,y)

We start with the initial point

y(5)=y(0)+5*f'(0,2)=2+5*(0.4*0*2)=2

And we continue until we reach the value for y(20)

y(10)=y(5)+5*f'(5,2)=2+5*(0.4*5*2)=2+20=22\\\\\\y(15)=y(10)+5*f'(10,22)=22+5*(0.4*10*22)=22+440=462\\\\\\y(20)=y(15)+5*f'(15,462)=462+5*(0.4*15*462)=462+13,860\\\\y(20)=14,322

4 0
3 years ago
PLS HELP WILL GIVE BRAINIEST<br> A student drops a rubber ball onto a surface.
dlinn [17]

Answer:

I’m not sure I am correct but I think it is either c or d.

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Evaluate 6 + 4(1 + 2)
koban [17]

Answer:

18

Step-by-step explanation:

It is important to recognize that there are different terms here. Terms are separated by operation. The 6 is separate from the 4(1+2)

3 0
3 years ago
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