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erma4kov [3.2K]
3 years ago
10

-3(k-5)=27 and the way to show your work on this two step equation

Mathematics
1 answer:
PtichkaEL [24]3 years ago
3 0

Answer:

k = -4

Step-by-step explanation:

Applying the Distributive Property of Multiplication, we get

-3k + 15 = 27, which simplifies to   -3k = 12.  Then k must be

k = -12/3, or k = -4

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Based on a kc value of 0.200 and the given data table, what are the equilibrium concentrations of xy, x, and y, respectively?
MariettaO [177]
There is no given data table but based on the question, the reaction is
xy <=> x + y
If we let M as the initial concentration of xy and c as the in the concentration after the dissociation, then we can use the ICE method
    xy   <=>   x    +   y
I    M
C  -c            c         c
-----------------------------
E  M-c          c         c

Solve for c using
Kc = c(c) / (M - c)
And the concentration of the xy, x, and y can then be determined
3 0
3 years ago
If sum of first 6 digits of AP is 36 and that of the first 16 terms is 255,then find the sum of first ten terms.
Cloud [144]

Answer:

100

Step-by-step explanation:

We have the sum of first n terms of an AP,

Sn = n/2 [2a+(n−1)d]

Given,

36= 6/2 [2a+(6−1)d]

12=2a+5d ---------(1)

256= 16/2 [2a+(16−1)d]

32=2a+15d ---------(2)

Subtracting, (1) from (2)

32−12=2a+15d−(2a+5d)

20=10d ⟹d=2

Substituting for d in (1),

12=2a+5(2)=2(a+5)

6=a+5 ⟹a=1

∴ The sum of first 10 terms of an AP,

S10 = 10/2 [2(1)+(10−1)2]

S10 =5[2+18]

S10 =100

This is the sum of the first 10 terms.

Hope it will help.

4 0
3 years ago
Read 2 more answers
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Travka [436]
Hope this helps good luck ☺

4 0
3 years ago
Kyle bought a sandwich for $4.95, a bag of chips for $2.30, and a drink for $1.10. The tax was $0.65. He gave the cashier $10.00
sweet-ann [11.9K]
Hello!

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4.95 + 2.30 + 1.10 + 0.65 = 9

10 - 9 = 1

Kyle should have received $1 change.
4 0
3 years ago
Read 2 more answers
Find the volume of this figure in cubic centimeters.
tankabanditka [31]

Answer:

7,680

Step-by-step explanation:

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23040/3 = 7,680

7 0
3 years ago
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