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Sladkaya [172]
2 years ago
5

If 7 people are in your family and everyone is supposed to drink 7/8ths of water each day, how much water is needed for the whol

e family?
Mathematics
1 answer:
laiz [17]2 years ago
5 0

Answer: 6.125 or 6¹/₈ units of water

Step-by-step explanation:

There are 7 people in the family and each of them are mean to drink 7/8ths of water.

The amount of water all 7 should take is therefore:

= 7 * 7/8

= 49/8

= 6.125 or 6¹/₈ units of water

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NEED HELP RIGHT NOW PLEASE HELP!!!!!!
Gekata [30.6K]
The rule is to subtract 6
3 0
3 years ago
Read 2 more answers
I've tried to get the answer for this 13 times now (not joking), plzzz help: write a formula that represents the number of peopl
gtnhenbr [62]

Answer:

  • 2820 seats
  • aₙ = 3n + 9

Step-by-step explanation:

<u>This is an AP with:</u>

  • The first term a₁ = 12
  • Common difference d = 3
  • Number of terms n = 40

<u>Number of the seats:</u>

  • Sₙ = 1/2*n(a₁ + aₙ) = 1/2n(2a₁ + (n - 1)d)
  • S₄₀ = 1/2*40(12*2 + 39*3) = 2820 seats

<u>Formula of nth term:</u>

  • aₙ = a₁ + (n - 1)d
  • aₙ = 12 + (n - 1)*3 = 12 + 3n - 3 = 3n + 9
  • aₙ = 3n + 9

6 0
3 years ago
Four more than six times a number is at least 40. Find the possible range of values.
Setler [38]
1. Let x = #
2. "Five less than six times a number" can be written as: 6x - 5
3. "is at least" is the same as "greater than or equal to" and can be written as: >=
4. "nine subtracted from two times that number" can be written as: 2x - 9
5. the equation is: 6x - 5 >= 2x - 9
6. solve for x by grouping the x variable terms on one side and the constants on the other side:
6x - 5 >= 2x - 9
-2x +5 -2X +5
4x >= -4
7. divide each side by 4, and you get: x = -1
5 0
3 years ago
4(3n-2)^(-3/2)+1=347/343
blagie [28]
Greetings and Happy Holidays!

Solve for n.
4(3n-2)^{\frac{-3}{2}}+1= \frac{347}{343}

Add -1 to both sides.
(4(3n-2)^{\frac{-3}{2}}+1)+(-1)=(\frac{347}{343})+(-1)

4(3n-2)^{\frac{-3}{2}}=\frac{347}{343}-1

4(3n-2)^{\frac{-3}{2}}=\frac{347}{343}-\frac{343}{343}

4(3n-2)^{\frac{-3}{2}}=\frac{4}{343}

Divide both sides by 4
\frac{4(3n-2)^{\frac{-3}{2}}}{4}=\frac{\frac{4}{343}}{4}

\frac{4(3n-2)^{\frac{-3}{2}}}{4}=\frac{4}{343}(\frac{1}{4})

\frac{4(3n-2)^{\frac{-3}{2}}}{4}=\frac{4}{1372}

\frac{4(3n-2)^{\frac{-3}{2}}}{4}=\frac{1}{343}

(3n-2)^{\frac{-3}{2}}=\frac{1}{343}

Solve the Exponent.
((3n-2)^{\frac{-3}{2}})^{\frac{2}{-3}} =\frac{1}{343}^{\frac{2}{-3}}

3n-2=49

Add 2 to both sides.
(3n-2)+2=(49)+2

3n=51

Divide both sides by 3.
\frac{3n}{3}= \frac{51}{3}

n=17

The Answer Is:
\left[\begin{array}{ccc}n=17\end{array}\right]

Hope this helped! 
-Benjamin



5 0
3 years ago
The University of Montana ski team has nine entrants in a men's downhill ski event. The coach would like the first, second, and
blondinia [14]

Answer:

504 ways

Step-by-step explanation:

The first position can go in 9 ways

The second position can go to the team in 8 ways

The third position can go to the team in 7 ways

Therefore, the first,second and third position can go to the team in:

9 X 8 X 7=504 ways

or Simply, we can use <u>Permutation</u>.

^9P_3=504 ways

3 0
3 years ago
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