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Mathematics

1 answer:

icang [17]3 years ago

4 0

Answer:

x < -7 or x > 2

Step-by-step explanation:

The solution includes the interval from negative infinity to -7, not including -7. That means

x < -7

The solution also includes the intervals from 2 to infinity, not including 2. That means

x > 2

Answer: x < -7 or x > 2

You might be interested in

Find the value of x! Justify your answer!

Daniel [21]

Answer:

Use the Triangle exterior angle theorem. The definition of this theorem, is that the exterior angle you are solving for is the sum of the two opposite interior angles. Set the equation:

80 + x = 3x - 22

Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Subtract x and add 22 to both sides.

80 (+22) + x (-x) = 3x (-x) - 22 (+22)

80 + 22 = 3x - x

Simplify.

102 = 2x

Isolate the variable, x. Divide 2 from both sides.

(102)/2 = (2x)/2

x = 102/2

x = 51

Check. Plug in 51 to the equation given.

80 + x = 3x - 22

80 + (51) = 3(51) - 22

131 = 153 - 22

131 = 131 (True).

7 0

4 years ago

A question I have been trying to solve:

Elden [556K]

Answer:

A jumbo burrito cost more than $3.00

Step-by-step explanation:

The correct question is

The Larsen Family bought 3 jumbo burritos and 2 regular burritos for $13.65. The Russo family bought 5 jumbo burritos and 2 regular burritos for $20.23. Does a jumbo burrito cost more than $3.00? Write and solve a system of equations to justify your answer

Let

x ---> the price of one jumbo burrito

y ---> the price of one regular burrito

we know that

The Larsen Family

$3x+2y=13.65$ ----> equation A