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3 years ago

Explain why it does not matter what letter or symbol is used to find an unknown number.

Mathematics

1 answer:

Levart [38]3 years ago

5 0

It does matter because for the understanding of to make it easier.

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A chemist is using 373 millimeters of a solution of acid and water.if 19.9 percent of the solution is acid how many millimeters

vovikov84 [41]

There are 74.227 milliliters of acid in the solution.

Explanation:

The total amount of liquid is 373 milliliters. This is both the acid and water combined i.e amount of liquid + amount of acid = 373 milliliters

If 19.9% of this is acid it means 19.9% of the the entire 373 milliliters is acid. So we calculate how much 19.9% of 373 milliliters is.

19.9% of 373 milliliters = 0.199 × 373 = 74.227 milliliters. So 74.227 milliliters of the entire solution is acid.

3 0

3 years ago

A parrot is selling for 40% off the original price. the original price was $90.what is these price of the parrot

BigorU [14]

40 percent off of $90 is $36.

8 0

3 years ago

19.5+24+7.5 =<br> 19.5+__+24 =<br> ___+24+___=

krek1111 [17]

See attached photo for solution

please give a thanks or brainliest if you found my answer helpful :)

8 0

3 years ago

What is (6x-4)+(5z+8)

konstantin123 [22]

Combine like terms.

6x + 5z + 4

6 0

2 years ago

Find the difference between the result of one sixth of product of 10 and 3 multiplied by 4 and 30

kherson [118]

Answer:

10 or -10,

Read the explanation

Step-by-step explanation:

Rewrite this problem as a numerical expression. As per the wording of this problem, there can be two expressions derived.

1. $((\frac{1}{6}(10*3)*4)-30$

2. $30-((\frac{1}{6}(10*3)*4)$

Simplify, remember the order of operations. The order of operations is the sequence by which one is supposed to perform operations in a numerical expression. This order is the following:

1. Parenthesis

2. Exponents

3. Multiplication or division

4. Addition or Subtraction

Use this sequence when simplifying and solving the expression:

Expression 1

$((\frac{1}{6}(10*3)*4)-30\\\\=((\frac{1}{6}(30)*4)-30\\\\=(5*4)-30\\\\=20 - 30\\\\= -10$

Expression 2

$30-((\frac{1}{6}(10*3)*4)\\\\=30-((\frac{1}{6}(30)*4)\\\\=30-(5*4)\\\\= 30-20\\\\= 10$

6 0

2 years ago