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S_A_V [24]
3 years ago
15

Need help with page 16 and 19

Mathematics
1 answer:
Ne4ueva [31]3 years ago
4 0
I recommend getting a math app for this...it will help you out a lot
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How many grams of a 15 percent alcohol solution should be mixed with 40 grams of a 30 percent solution to obtain a
Akimi4 [234]

The number of  grams is 20 grams

Let x represent how  many grams of a 15 percent alcohol solution

15%x+30%.40/x+40

=25%

0.15x+0.4.30=0.25 (x+40)

0.15x+12=0.25x+10

0.15x-0.25x=10+12

-0.1x=-2

x=-2/-0.1

x=20

Inconclusion The number of  grams is  20 grams

Learn more here:

brainly.com/question/24750329

4 0
2 years ago
Help Me Please~
Mkey [24]

Answer:

45^0.999

Step-by-step explanation:

The bases are equal so we wont divide them, we shall only divide the exponents.

<em>2799/2800=0.999</em>

<em>hope it helps</em>

3 0
2 years ago
Which terms could be used as the last term of the expression below to create a polynomial written in standard form? Check all th
kogti [31]
A polynomial is said to be in standard form if it is written in the order of degree from highest to lowest from left to right.

The degree of a term of a polynomial is the exponent of the variable or the sum of the exponents of the variables of that term of the polynomial.

Thus, given the expression
-5x^2y^4 + 9x^3y^3+\_\_\_

-5x^2y^4 has a degree of 6, and
9x^3y^3 has a degree of 6.

Thus, the exponent of the variable or the sum of the exponents of the variables of the next term of the polynomial must be less than or equal to 6 for the polynomal to be said to be in standars form.

Therefore, the <span>terms that could be used as the last term of the given expression to create a polynomial written in standard form are
x^5, \\  \\ &#10;y^5, \\  \\ &#10;6x^4y, \ and \\  \\ &#10;-xy^5</span>
7 0
3 years ago
Read 2 more answers
Factor.<br> Z^2+ 8z – 20
zimovet [89]
Step by Step:

(z^2 -2z)(10z-20)

z(z-2)+10(z-2)

(z+10)(z-2)

Hope this helps.
8 0
3 years ago
What is 4 divided by 888
const2013 [10]

Answer:

0.0045045045

Step-by-step explanation:

Have a good day I hope this helps! :)

3 0
3 years ago
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