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tankabanditka [31]
2 years ago
6

Enter the value of n so that the expression (y + 2) + (3y - 5) is equivalent to (ny- 3)

Mathematics
2 answers:
matrenka [14]2 years ago
5 0

Answer: n = 4

Step-by-step explanation: you combine the like variables which turns it into

(4y - 3)

(4y - 3) is <em>another</em> way of saying ((4 x y) - 3)

So the 4 is turned into n making it (ny - 3)

r-ruslan [8.4K]2 years ago
5 0

Step-by-step explanation:

(y+2) + (3y-5) = (ny-3)

Step 1: Remove the brackets as the terms in brackets are separated by an addition sign.

y + 2 + 3y - 5 = ny - 3

Step 2: Join the like-terms.

4y - 3 = ny - 3

From here, you can either do logical reasoning that n = 4 because lefthand side should be equal to righthand side or you continue by making n subject of the formula which obviously gives you 4 :)

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Is the product of fifteen negative integers positive or negative?
enot [183]

Answer:

the sign of the product of 15 negative numbers will be negative

Step-by-step explanation:

Heya mate!!

The product of odd numbers is odd and the product of even numbers is even.

so 15 is an odd number then the sign of product is odd

Hope this helps!!!

3 0
2 years ago
Please help me find m&lt;1 before 11:59 PM!
Bond [772]

Answer:

129 degrees

Step-by-step explanation:

add the interior angles: 62 + 67 = 129

subtract your answer from 180 to get the exterior angle of the interior angle that is opposite to the given angles

4 0
3 years ago
Read 2 more answers
two pumps of different sizes, working together, can empty a fuel tank in 3 hours. the larger pump can empty the tank in 4 hours
bonufazy [111]
Suppose the larger pump alone can empty the tank in L hours, and the smaller pump can finish the job in S hours, then each hour the large pump empties 1/L portion of the tank, and the small pump empties 1/S per hour
Working together for three hours, they empty the whole tank, which is 100% of it, so 3/L+3/S=100%=1
Larger pump can empty the tank in 4 hours less than the smaller one, so L=S-4
replace L: 3/(S-4)+3/S=1
Make the denominator the same to solve for:
3S/[S(S-4)] +3(S-4)/[S(S-4)]=1
(3S+3S-12)/[S(S-4)]=1
(3S+3S-12)=[S(S-4)]
S^2-10s+12=0
use the quadratic formula to solve for S
S is about 8.6
The answer is not whole hour. 


8 0
3 years ago
Read 2 more answers
A recipe calls for 3/4 cups of flour . Estevan wants to make 1/3 of the recipe how much flour will he need
romanna [79]
1/3 × 3/4 = 1/4 :) hope this helped!
7 0
3 years ago
Read 2 more answers
Let f(x)= log x
marshall27 [118]

Answer:

The average rate of change of f(x) from 2-3 is 0.176

Step-by-step explanation:

Rate of change= change in y / change in x

                        = log 3 - log 2 / 3-2

                        = 0.477-0.301 / 1

                        = 0.176

5 0
3 years ago
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