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Rasek [7]
3 years ago
8

If y varies directly with x and y = 2 when x = 10, then what is the value of y when x = 40? 200 45 320 8

Mathematics
1 answer:
xz_007 [3.2K]3 years ago
6 0

40/10=4  2*4=8

8 is your answer



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Write an algebraic expression that has three terms. Two of the terms should be variable terms, and one of the terms should be th
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Answer:

<em>Hello.</em>

An expression does not have an equal sign in it. Here are three examples:

2x + 7y + 6

x + 3y - 6

4x/4y x 6 Good luck!

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Create another ratio equivalent to 3 : 2 and 6 : 4.
Alexxandr [17]

Answer:

12:6

Step-by-step explanation:

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Max has been offered positions by two car companies. The first company pays a salary of $12,500 plus commission of $1500 for eac
adell [148]

Answer:

5 Cars

Step-by-step explanation:

Let the number of cars to be sold to make the total pay equal be x.

The first company pays a salary of $12,500 plus commission of $1500 for each car sold.

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The second company pays a salary of $17,500 plus a commission of $500 per car sold.

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7 0
3 years ago
Use mental math to approximate what a 15% tip would be for a bill of $31.99.
rodikova [14]

The whole bill is $31.99 that is 100%. You can use mental math to determine exatcly 15% from $31.99:

1. 15%=10%+5%

2. To find 10% from $31.99 you should simply divide $31.99 by ten. Thus, 10% from $31.99 is $3.199.

3. 5% is half of 10%, then 5% from $31.99 is $3.199:2=$1.5995.

4. 15% from $31.99 is $3.199+$1.5995=$4.7985≈$4.80.

Answer: correct choice is B.

5 0
3 years ago
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The dishes have been sorted into cups and plates. The number of plates is four less than two times the number of cups. The dishe
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Answer:

The number of cups = 8 ....

Step-by-step explanation:

Let x be the number of cups

Let y be the number of plates

According to the given statement:

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Now,

60% = 0.60

y=0.60(x+y)    This is equation 2

Now substitute equation 1 in equation 2.

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x=1.6/0.2

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Therefore the number of cups = 8 ....

7 0
3 years ago
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