How much hydrochloric acid is in a 60 milliliter bottle that is marked 80% hydrochloric acid

Answers

Answer 1

Answer: Work:

80% = 0.80

0.80 × 60 = 48

Answer:

48 milliliters

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Determine the value of the expression 4^3 × 4^-6 .A) -12
B)-1/12
C)64
D)1/64

Answers

$\bf 4^3-4^(-6)\implies 4^(3-6)\implies 4^(-3)\n\n-----------------------------\n\nnow\quad recall\implies a^{-{ n}} \implies \cfrac{1}{a^( n)}\qquad \qquad\cfrac{1}{a^( n)}\implies a^{-{ n}}\n\n-----------------------------\n\n4^(-3)\implies \cfrac{1}{4^3}\implies \cfrac{1}{64}$

Answer:

1/64

Step-by-step explanation:

i got this on usatestprep.

What is the value of the expression? 300 + 34 – 8 · 2
A. 746
B. 608
C. 365
D. 296

Answers

Asking the Math Gods...

you have no valid choices

300+34-(8*2)
=334-16
=318

How to solve x-y=102x-y=17

Answers

Is the equation x-y=10 and 2x-y=17?

Isolate the Y getting:
2x-17=y and x-10=y

Then bring the two equations together. Sub in the one equation for y.
2x-17 = x-10

The answer for x would be 7 (X=7)

Then pick an equation and sub in 7 for x to get your Y.

x-y=10
7-y=10
Subtract 7
-y=3
Divide the -1 from the y (Hopefully you learned why there's a 1 there)
y=-3

Answer is X=7 and Y=-3 or (7, -3)

if 9 to the power of x = 27, what is x.

Method as well plz!