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3 years ago

X^2+(x-8)^2-3(x+2) = 2(x+9)

Mathematics

1 answer:

Yuki888 [10]3 years ago

8 0

Answer:

There are two solutions:

x = 5/2 = 2.500

x = 8

Step-by-step explanation:

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Caleb bought groceries and paid

lutik1710 [3]

Answer:

Price of Caleb's groceries before tax= $6.4

Step-by-step explanation:

Let price of groceries before tax be = $ $x$

Sales tax % = 2.5%

Sales tax applied = $2.5\% \ of\ x = \frac{25}{100}\times x = \frac{25}{100} x$

Actual sales tax paid = $1.60

∴ $\frac{25}{100}x=1.60$

Multiplying both sides by 100.

$100\times \frac{25}{100}x=1.60\times 100$

$25x=160$

Dividing both sides by 25.

$\frac{25x}{25}=\frac{160}{25}$

$x=6.4$

∴ Price of groceries before tax= $6.4

8 0

4 years ago

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The price of an item has been reduced by 30%. The original price was $30. What is the price of the item now ?

Anit [1.1K]

Answer:

Step-by-step explanation:

30 multiply by 30 and divide by 100

6 0

4 years ago

The following conditional statement true. what is the statements converse and is the converse true?

Lera25 [3.4K]

A converse is when we switch the hypothesis and conclusion, so "if a figure is a square then it has four right angles" the converse would be "If a figure has four right angles then it is a square" Which is false because of rectangles, your answer is D.

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3 years ago

Bill earns $12 per hour and works at most 40 hours per week. Identify the independent and dependent quantity in the situation, a

sesenic [268]

Independent: number of hours worked
Dependent: income earned
Domain: between 0 and 40 hours
Range: between 0 and 480$

3 0

3 years ago

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What equation is equivalent to x + 8 = 21

san4es73 [151]

Answer:

x= 13