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Nat2105 [25]
2 years ago
11

In a sale, a shop reduces all its prices by 10%.

Mathematics
1 answer:
stepladder [879]2 years ago
3 0

Answer:

The phone roughly cost 302 dollars

Step-by-step explanation:

10% of 432=43.2

20% of 432=86.4

432-129.6=302.4

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Gabriel went to the grocery store and bought bottles of soda and bottles of juice. Each bottle of soda has 35 grams of sugar and
kupik [55]

Answer:

9 bottles of soda and 7 bottles of juice

Step-by-step explanation:

Let x be the number of bottles of soda purchased and y be the number of bottles of juice purchased.

1. Gabriel purchased 2 more bottles of soda than bottles of juice, then

x=y+2

2. Each bottle of soda has 35 grams of sugar, then there are 35x g of sugar in x bottles of soda.

Each bottle of juice has 10 grams of sugar, then there are 10y g of sugar in y bottles of juice.

In total, there are 35x+10y g of sugar.

All bottles collectively contain 385 grams of sugar, thus

35x+10y=385

3. Solve the system of two equations:

\left\{\begin{array}{l}x=y+2\\ \\35x+10y=385\end{array}\right.

Substitute the first equation into the second equation:

35(y+2)+10y=385\\ \\35y+70+10y=385\\ \\35y+10y=385-70\\ \\45y=315\\ \\y=7\\ \\x=7+2=9

7 0
4 years ago
Read 2 more answers
Roger is paid $50 to sell videos of a play to an audience after the play is preformed.
konstantin123 [22]

Answer:

Roger can earn $510 at most.

Step-by-step explanation:

We are given the function



Which gives the earnings of Roger when he sells v videos. Since the play’s audience consists of 230 people and each one buys no more than one video, v can take values from 0 to 230, i.e.  



That is the practical domain of E(v)

If Roger is in bad luck and nobody is willing to purchase a video, v=0

If Roger is in a perfectly lucky night and every person from the audience wants to purchase a video, then v=230. It's the practical upper limit since each person can only purchase 1 video

In the above-mentioned case, where v=230, then



Roger can earn $510 at most.

3 0
3 years ago
Help me if you know..​
jenyasd209 [6]

Answer:

3 \sqrt{3}

Step-by-step explanation:

See the attachment for better understanding..

8 0
3 years ago
There are 8 fish in a fish tank<br> 2 drowned and three died, how many fish are left in the tank?
MakcuM [25]

Answer: 8

Step-by-step explanation:

Fish cannot drown

Three died but they are still in the tank

8 0
3 years ago
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You are having three friends (plus yourself) over for dessert tomorrow night. The recipe you want to use to make custard yields
koban [17]

Since there is four person, just ÷2 all of the required ingredients

3 0
3 years ago
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