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4 years ago

How do you solve this

Mathematics

2 answers:

gavmur [86]4 years ago

8 0

You have to times the 5 and 9 and you will get the answer to V.

kogti [31]4 years ago

7 0

Multiply 9 and 5 and you get 45.

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In a particular country, the coins come in the denominations 1, 15 and 50 schillings. Whilst visiting this country, Peter bought

ELEN [110]

Answer:

Step-by-step explanation:

Depending on the tools available to your 11y.o., it's a typical question for linear inequalities.

Where a,b,c are the # of 1,15,50 coins given by the buyer, and d,e,f the # of coins given back by the seller.

1×a + 15×b + 50×c > 1×d + 15×e + 50×f

a+b+c+1>=d+e+f

a+b+c >=2

Now, there are other clues in the text :

If the seller gives back money, then you didn't pay with 1's, otherwise, it means you overpay and you could have given fewer coins. So a=0.

Similarly, the seller cannot give you back a coin of 50, otherwise, you could have given fewer coins as the buyer. So f=0.

So that gives :

15×b + 50×c > 1×d + 15×e

b+c+1>=d+e

b+c >=2

From that point on, there is only a handful of scenarios to test.

5 0

2 years ago

For a ride on a rental scooter, Charlie paid a $3 fee to start the scooter plus 11 cents per minute of the ride. The total bill

Sever21 [200]

Answer: Charlie travelled for 96 minutes . <h2>Explanations : </h2>

Given

• A ride on a rental scooter cost $3 plus 11 cents per minute for a ride ,

• Total bill for Charlies ride = $13.56

• Let Charlies ride be equal to ,t minutes, long

• This is a linear function representing the total bill for Charlies ride as follows :

$3\text{ + }0.11t=13.56\text{ }$ <h2>Therefore , solving for t , we get that t = </h2> $\begin{gathered} 0.11t\text{ = 13.56 - 3 } \\ 0.11t\text{ = 10.56 } \\ \frac{0.11t}{0.11\text{ }}=\text{ }\frac{10.56}{0.11} \\ \therefore\text{ t = 96 minutes} \end{gathered}$

• t = 96 minutes ,

• This means that Charlie travelled for, 96 minutes ,.

• With a total bill of $13.56 , Charlies ride was 96 minutes long.

4 0

2 years ago

Ellen is making plant boxes , each box uses 3/6 yard of wood what is the total length of wood ellen need to make 7 plant boxes?

Nikolay [14]

Answer:

3/6 7 times

Step-by-step explanation:

5 0

3 years ago

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Is 6/1 equivalent to 6/6

Nadusha1986 [10]

Yes, hope this helps

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3 years ago

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A couple of students are testing a prototype for a science project on rockets. They launch the rocket and record its height over

Illusion [34]

For this case we have the following table:
x f(x)
<span><span><span>0    2
</span><span>1    5
</span><span>2 10
</span><span>3    17
</span></span></span> The equation that best fits the data in the table, for this case, is given by a quadratic function.
<span><span><span> </span></span></span>The quadratic function in its standard form is:
f (x) = x2 + 2x + 2
Answer:
f (x) = x2 + 2x + 2

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3 years ago

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