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Natali [406]
3 years ago
13

2. Izzi thinks the two expressions 2/2a-1) + 3a and 7a - 2 are equivalent. Is he correct? Explain why or why not.​

Mathematics
1 answer:
Rashid [163]3 years ago
6 0

Answer:

I need more points I'm sorry for this

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9. Aaron has a lemonade business. If he sells each glass of lemonade for $2.75, and he sold 11
marin [14]

Answer:

$27.75

Step-by-step explanation:

Multiply $2.25 by 11 to get the answer

4 0
3 years ago
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To receive a grade of A on an 80-question test, 90% of the questions must be answered correctly. What is the maximum number of q
marta [7]

Answer:

The answer would be 8.

Step-by-step explanation:

This is a percentage question, and I have struggled with these before but this is the <em>easiest</em> way to solve it given these certain criteria.

Alright, so it's given that:

A) 90%= an A grade

and

B) This is an 80-question test.

Given these, we can do the following:

90% times 80, which equals <em>72</em>.

Just to check, we know that to convert percentages to fractions, we move the decimal two spots to the left, therefore 90%= 0.90, or 0.9. We take 72 and divide it by 80, and we get 0.9, thus showing that it is correct.

Then, we do 80-72 and using simple math we get 8.

8 0
3 years ago
Solve the equation.<br> 7x2 + 5 - x = 6x2 + 10<br> X =
GarryVolchara [31]

Answer:

x = -5

Step-by-step explanation:

7 × 2 + 5 - x = 6 × 2 + 10

Multiply.

14 + 5 - x = 12 + 10.

Combine like terms.

19 - x = 24

Isolate x (I'm going to add x and subtract 24 from both sides to avoid changing signs)

-5 = x

Final answer

x = -5

8 0
3 years ago
house of coffee charges $14.99 per pound for its gourmet coffee and offers a $2.50 off coupon toward the total purchase. the bre
Karo-lina-s [1.5K]
Idk tbh sorry rip rip rip
7 0
3 years ago
In march 1989 the exxon valdez ran aground and spilled 240,000 barrels of crude petroleum off the coast of alaska. one barrel of
elena-14-01-66 [18.8K]

<span>240,000 barrels contain a total of:

240,000 barrels * 42 gal per barrel = 240,000*42 gal = 10,080,000 gal of petroleum.
------------------------------------------------------------------------------------------------
now we need to convert gallons to Liters. For this we use the conversion:

</span>1 US liquid gallon = 3.78541 Litre, 

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

thus 10,080,000 gal  are 10,080,000*3.78541 Litre = 38,156,932.8 Litre


Answer: 38,156,932.8 Litre
7 0
4 years ago
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