Answer:
x1= -7 , x2 = 7
Step-by-step explanation:
x^2 = 37 +12
x^2 = 49
x = -7 or 7
Hello there! So first off, let's find the tax. In order to find the tax of an item, all you have to do is multiply the price by the percentage, because the tax is the portion of the price. The tax is 4%. Let's solve. 20 * 4% (0.04) is 0.8. The tax is $0.80. Let's add that to the purchase price. 20 + 0.80 is 20.80. That's the total purchase price. Here are the answers easier to read.
Sales tax: $0.80
Total price: $20.80
The simplification of – 65x + 4.2y + 65x – 2.2y + 5.4 + y – 3y is 5.4
<u>Solution:</u>
Given, expression is – 65x + 4.2y + 65x – 2.2y + 5.4 + y – 3y
We have to solve the above given expression by combining the like terms.
Then, – 65x + 4.2y + 65x – 2.2y + 5.4 + y – 3y
Combining the like terms in above expression we get,
⇒ ( - 65x + 65x ) + ( 4.2y – 2.2y + y – 3y ) + 5.4
⇒ ( 0 ) + ( 2.0y + ( - 2y ) ) + 5.4
⇒ 0 + (2y – 2y) + 5.4
⇒ 0 + 5.4 = 5.4
Hence, the value of the given expression is 5.4
Answer:
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Step-by-step explanation:
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