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3 years ago

Write and solve an inequality that represents the values of x, in feet.

Mathematics

1 answer:

SVEN [57.7K]3 years ago

3 0

Answer:

x < 16 ft

Step-by-step explanation:

Perimeter = x

If it is less than 16, the equation is:

x < 16

-Chetan K

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3 years ago

2x + y = 8 find four solutions

Tcecarenko [31]

Answer:

see explanation

Step-by-step explanation:

Choose any value for x, substitute into the equation and solve for y, that is

x = - 1

2(- 1) + y = 8

- 2 + y = 8 ( add 2 to both sides )

y = 10

---------

x = 0

2(0) + y = 8

0 + y = 8

y = 8

----------------

x = 1

2(1) + y = 8

2 + y = 8 ( subtract 2 from both sides )

y = 6

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x = 3

2(3) + y = 8

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3 years ago

Kelly invested her savings of $4800. she invested part in mutual funds, at 9% per year, and the rest in GIC's, at 10% per year.

Aneli [31]

Answer:

For the 9% she invested $2,300

For the 10% she invested $2,500

Step-by-step explanation:

Let the amount invested be $x and $y in both cases respectively

Since the total invested is $4,800

This means that;

x + y = 4800 ••••••••••••(i)

Now let’s have a look at the interests.

For the 9%

Interest would be 9/100 * amount invested

= 9/100 * x = 9x/100

For the 10%, interest would be

10/100 * y = 10y/100

Adding both will give a total of 457

9x/100 + 10y/100 = 457

multiply through by 100

9x + 10y = 45700 •••••••• (ii)

From equation i, we can write x = 4800 - y

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43200 -9y + 10y = 45,700

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y = 45,700-43,200 = $2,500

Recall

x = 4800 -y

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Answer:

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Step-by-step explanation:

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4 years ago

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