Which expression is equivalent to -3(2m-1)-n

2 answers:

5 0

-3(2m-1)-n

First we multiply -3 to the first term of the expression

---------- > ( -3*2m + (-3)*(-1) ) - n

---------- > ( -6m + 3 ) - n

-----------> -6m -n + 3

Then, we divide and multiply by -6, (the expression remains the same)


---- > (-6/-6)* (-6m -n + 3)

---- > -6*[m + (n/6) - 1/2]

The answer is -6*[m + (n/6) - 1/2]

Veseljchak [2.6K]3 years ago

5 0

Answer:

The answer is -6*[m + (n/6) - 1/2]

Step-by-step explanation:

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Rewrite 1/5 as a percent

il63 [147K]

Answer:

20%

Step-by-step explanation:

1/5 as a percent is 20%

The 1 in 1/5 is equal to 10.

The 5 in 1/5 is equal to 50.

Therefore you would multiply 50 x 2 to get 100.

Then, you would multiply 10 x 2 to get 20/100 or 20%

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3 years ago

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Find a polynomial function of lowest degree with rational coefficients that has the given numbers as some of its zeros. 3-i, squ

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Real coefients
if a+bi is a root then a-bi is also a root
since 3-i is a root then 3+i s also a root

also the √7, so if √7 is a root then -√7 is also a root
so

f roots are r1 and r2 then the factored form is
f(x)=(x-r1)(x-r2)

roots are 3-i, 3+i and √7 and -√7

f(x)=(x-(3-i))(x-(3+i))(x-√7)(x-(-√7))
expanded
f(x)=x⁴-6x³+3x²+42x-70

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3 years ago

The trinket store is open for 14 hours per day. They sell an average of 5 trinkets per hour. The back storeroom currently has 56

tekilochka [14]

Q1)
write the equation that estimates the number of trinkets T that will be in the storeroom after H hours
Initially the number of trinkets available = 560
every hour they sell an average of 5 trinkets
therefore in H hours, number of trinkets that will be sold = 5 trinkets/hr * H hrs
number of trinkets sold in H hours = 5H
the remaining number of trinkets = T
T = number of trinkets initially available - number of trinkets sold

T = 560 -5H

Q2)
How many days will it take to run out of trinkets
number of trinkets sold per hour - 5
number of hours the shop is open for - 14 hours / day
during one day number of trinkets sold - 5 trinkets/hr x 14 hrs/ day
= 70 trinkets per day
there are 560 trinkets available
and if 70 trinkets are sold per day
number of days it takes to sell 560 trinkets
days = 560 trinkets / 70 trinkets/day
= 8 days

the third response is correct - 1) T = 560 -5H
2) 8 days