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masha68 [24]
3 years ago
14

What is 20 times 20plz tell me

Mathematics
1 answer:
vladimir1956 [14]3 years ago
8 0

Answer:

400

Step-by-step explanation:

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3.5b + 6.8k - 5.2b<br> - 2.3k
SVEN [57.7K]

Answer:

− 1.7b + 4.5k is the simplified equation. Is that the answer you were looking for?

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
A bottle of hand lotion is on sale for $2.25. If this price represents a 50% discount from the original price,what is the origin
nalin [4]

Step-by-step explanation:

50% is basically half. So if you double the price ($2.25) x 2 you will have your answer.

So the answer is $4.50..!

3 0
3 years ago
(-3 - 5i)(-3 + 5i) =
Black_prince [1.1K]
Hello,
You don't know (a-b)(a+b)=a²-b²?

(-3)²=9
(5i)²=-25
Answer 9 +25=34


6 0
2 years ago
Read 2 more answers
If you save one penny on January 1, two pennies on January 2, three pennies on January 3, and continue this pattern for one year
monitta
The given condition is an arithmetic sequence with the first term (a1) is 1 penny and the common difference (d) is 1 penny. A year that is not a leap year has 365 days (n). The arithmetic series (S) is calculated through formula,
 
                               S = (n/2) (2a1 + (n - 1) x d)

Substituting the known values,
 
                               S = (365/2) (2 x 1 + (365 - 1) x 1)
 
                               S = 66795 pennies

A dollar is 100 pennies. Therefore, at the end of the year, the total savings is $667.95.




4 0
3 years ago
Select the correct answer.
adelina 88 [10]

Answer:

c.

\frac{5}{4} x - 2 = \frac{3}{2} x-4

Step-by-step explanation:

a.

\frac{5}{2} x +\frac{7}{2} =\frac{3}{4} x+14 \\\frac{5}{2}x -\frac{3}{4} x=14-\frac{7}{2} \\\frac{10-3}{4} x =\frac{28-7}{2} \\\frac{7}{4} x =\frac{21}{2} \\x = \frac{21}{2} * \frac{4}{7} = 6 \\

b.

\frac{5}{4} x -9 = \frac{3}{2} x-12 \\\frac{5}{4} x - \frac{3}{2} x= -12 + 9 \\\frac{5-6}{4} x = -3 \\\frac{-1}{4} x = -3 \\x = -3 * -4 \\x = 12

c.

\frac{5}{4} x-2=\frac{3}{2} x-4 \\\frac{5}{4} x-\frac{3}{2} x=-4+2 \\\frac{5-6}{4}x=-2 \\\frac{-1}{4} x = -2 \\x = -2 * -4 \\x = 8

d.

\frac{5}{2} x -7 = \frac{3}{4} x+14 \\\frac{5}{2}x -\frac{3}{4} x=14+7 \\\frac{10-3}{4} x =21 \\\frac{7}{4} x =21 \\x = 21 * \frac{4}{7} = 12 \\

You could also replace x for 8 in every equation and see if both sides give the same answer

8 0
3 years ago
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