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viva [34]
3 years ago
7

. The temperature on a summer afternoon is 84°F. Define a variable and write an expression to find the temperature after it chan

ges. Then evaluate your expression for a decrease of 14 degrees Fahrenheit. 14 – c; 14 – (–84) = 70; 70°F 84 – c; 84 – (–14) = 98; 98°F 14 + c; 14 + (–84) = 98; 98°F 84 + c; 84 + (–14) = 70; 70°F
Mathematics
1 answer:
Pachacha [2.7K]3 years ago
4 0
The answer is 84 + c; 84 + (-14) = 70; 70 degrees F

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The original price of the TV was marked down by $75 to a sale price of $325. What was the original price of the TV
timurjin [86]

Answer:

$400

Step-by-step explanation:

Add The two things together

325+75= 400

3 0
3 years ago
Equation to find original price if sale price of $429 is a 34% discount
Burka [1]

Answer:

The original price is $650

Step-by-step explanation:

There's an actual algebra method for this, but this is my method because I find it way easier to remember.

Since the most you can discount out of an item is 100% (well, it's considered free then) let's subtract 100 - 34, which is 66.

Now, turn it into a decimal because it makes the numbers easier- 0.66.

Since when you're finding the discount of an original price, you multiply the original price by the discount- instead for finding the original price for a discounted item we divide $429 by 0.66 instead, since when you divide a number by another number that's under 1 the quotient is a larger number.

So, 429 ÷ 0.66 = 650.

Therefore, the original price of the $429 sale price for a 34% discount is $650.

7 0
3 years ago
6.5 + (−2) + 10.5 I could probably do this but its kind of hard to understand. Explain?
elena-s [515]
Hello! Let's work this problem from left to right to make things a bit easier ;)

6.5+(-2) is the same as 6.5-2, since adding a negative is the same as subtracting a positive. 6.5-2=4.5

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6 0
3 years ago
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Valentin [98]
What's 1/3 of 12?

Mulitply 1/3 times 12 = 4

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3 years ago
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