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2 years ago

X + 3y = 15 -8x + 3y = -12

Mathematics

1 answer:

Anika [276]2 years ago

8 0

Answer: x=3,y=4

Step-by-step explanation:

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Trophies for Gunther's soccer team will cost $6.25 each, plus 15 cents for every word on the engraving. Which equation could be

Lynna [10]

Answer:

Step-by-step explanation:

c = $6.25 + 0.15w

$6.25 represents the fixed cost. it is the cost that does not vary with the number of words

15 cents is the variable cost. it is the cost that varies with the number of words.

to write the equation convert 15 cents to dollars by dividing by 100.

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2 years ago

Of all the visitors to a museum on Saturday, 18% were kids younger than 11 years old. In lowest terms, write the fraction of vis

Aleksandr-060686 [28]

<h3>Answer: 9/50</h3>

Explanation:

Any percentage converts to that number over 100.

So 18% would convert to 18/100

We then reduce the fraction by dividing each part by the GCF 2

18/2 = 9

100/2 = 50

The fraction 18/100 fully reduces to 9/50

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2 years ago

Do the functions have the same concavity? f(x)=2x^2-10x-30

kumpel [21]

Answer:

Use the inflection points to set up intervals. Substitute a value into each interval to find where the curve is concave up or down.

The graph is concave up

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2 years ago

Read 2 more answers

Find three consecutive natural numbers if the square of the smallest number is 65 less than the product of the remaining two num

Vedmedyk [2.9K]

Answer:

21, 22, and 23

Step-by-step explanation:

Three consecutive natural numbers can be represented as n, n+1, and n+2.

The square of the smallest number would be $n^2$ and its equal to the product of the other two (n+1)(n+2).

So the equation is $n^2 = (n+1)(n+2) -65\\n^2 = n^2 +n+2n+2-65\\n^2=n^2+3n-63\\0=3n-63\\63=3n\\ 21=n$ .

If n is 21 then the next numbers are 22 and 23.

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2 years ago

Bob is the supervisor for a window washing company. He goes to a job site to inspect the work and make sure his crew has washed

snow_tiger [21]

Answer:

Start on 8 the floor

 Up 6 floors

 Descend 10

 Above 2

 Increase 15

 Down 3

 Ascend 7

 Lessen 5 floors

 Up 2

 The opposite of -2 floors

 Drop 15

 Descend 8

 Ascend 10

 Rising 6 floors

 Decrease 2

 Drop 3

 Sink 2 floors

 The opposite of -13

 Decrease 7

 Lower 14

 Advance 1 floor

 Increase 4

It is time for the crew to clock out for the day. What floors do they still have to finish? Draw a visual representation of the problem. Explain how you solved it.

Answer:

Step-by-step explanation:

Step-by-step explanation:

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2 years ago