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3 years ago

Solve the system of equations.

Mathematics

1 answer:

Alchen [17]3 years ago

5 0

Answer:

x = 10, y = 5

Step-by-step explanation:

Substitute the second equation into the x value of the first equation.

-4x + 11y = 15

-4(2y) + 11y = 15

-8y + 11y = 15

3y = 15

y = 5

Now substitute the y value into an original equation.

x = 2y

x = 2(5)

x = 10

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On Friday there were 8 snowboarders for every 3 skiers at Slovak ski resort. On Saturday the ratio of the number of snowboarders

atroni [7]

Answer:

There are 46 more skiers than snowboarder

Step-by-step explanation:

Given

Ratio of Snowboarders to Skiers

On Friday:

$Ratio = 8 : 3$

On Saturday:

$Ratio = 4 : 7$

Population = 168

Required

Determine the difference in the number of skiers and snowboarders on Saturday

On Saturday, we have

$Ratio = 4 : 7$

Calculate Total

$Total = 4 + 7$

$Total = 11$

Calculate the number of skiers

$Skiers = \frac{7}{11} * 168$

$Skiers = \frac{1176}{11}$

$Skiers = 107$ (Approximated)

Calculate the number of snowboarders

$Snowboarders = \frac{4}{11} * 168$

$Snowboarders = \frac{672}{11}$

$Snowboarders = 61$ (Approximated)

Calculate the difference

$Difference = 107 - 61$

$Difference = 46$

<em>Hence, there are 46 more skiers than snowboarder</em>

6 0

3 years ago

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motikmotik

Answer:

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Step-by-step explanation:

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6 0

3 years ago

I’m getting 9.8 not sure what I’m doing wrong

Afina-wow [57]

Answer: 10

Step-by-step explanation:

it says round to nearest 10 your answer was 9.8 so round to 10.

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Answer:

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Step-by-step explanation:

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Solve the system of equations.​

Solve the system of equations.