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natulia [17]
3 years ago
15

If you add 8 g of salicylic acid to 84 g of an ointment base what is the final concentration of the product

Mathematics
1 answer:
Anastaziya [24]3 years ago
3 0

Answer:

concentration = 8/84 + 8 = 0.8696

Step-by-step explanation:

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The Johnson twins were born nine years after their older sister. This year, the product of the three siblings ages is exactly 18
KATRIN_1 [288]

Answer: The age of the twins is 10 years.

Step-by-step explanation:

Suppose the age of older sister be x

Let the age of twins sister be x-9, as they are born after 9 years.

Product of their ages be

x(x-9)(x-9)\\\\=x(x^2-18x+81)\\\\=x^3-18x^2+81x

Sum of their ages will be

x+x-9+x-9\\\\=3x-18

According to question,

1861+3x-18=x^3-18x^2+81x\\\\x^3-18x^2+81x-3x+18-1861=0\\\\x^3-18x^2+78x-1843=0\\\\x=19

So, Age of older sister will be 19 years.

Age of the twins will be

19-9=10\ years

Hence, the age of the twins is 10 years.

3 0
3 years ago
Jonah is mowing lawns for a summer job. For every mowing job, he charges an
dem82 [27]

Answer:

$2.00

Step-by-step explanation:

8 times 6= 56

58 - 56= 2

5 0
3 years ago
Could anyone Solve
viva [34]

The value of the angle shown in the protactor is 50° and the value of y is 10°.

<h3>How to calculate the values?</h3>

The value of y will be:

2y + 30 = 3y + 20

3y - 2y = 30 - 20

y = 10

The value of x when they're complementary will be:

5x - 2 + 3x + 4 = 90

8x + 2 = 90

8x = 90 - 2

8x = 88.

x = 88/8 = 12

The value of angle FDE will be:

3x + 10 + 6x + 8 = 180

9x + 18 = 180

9x = 180 - 18

9x = 162

x = 162/9

x = 18

FDE = 6x + 8

= 6(18) + 8

= 108 + 8

= 116

Learn more about angles on:

brainly.com/question/25770607

#SPJ1

3 0
2 years ago
Which equations could you solve using the addition property of equality? Check all that apply. 4 + y = 100 y – 4 = 100 4y = 100
oksian1 [2.3K]

Answer:

y-4=100 and 100=y-5

Step-by-step explanation:

For Edg! Posted: June 5th, 2020

6 0
3 years ago
Read 2 more answers
What is the value of v? v+48° v–46°
Kruka [31]

Answer:

Step-by-step explanation:

Add v and 48°v

49v−46°

7 0
3 years ago
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