What is the answer??????

Chemistry

2 answers:

kakasveta [241]3 years ago

5 0

Answer:

I think it will be true. But I'm not sure.

Shalnov [3]3 years ago

4 0

Answer:

I think so It's true

let's me check

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which of the following is an electronic device that measures ph? a. a ph meter b. a molarity meter c. a hydroxide meter d. a hyd

NARA [144]

Which of the following is an electronic device that measures pH?

a. a pH meter

4 0

3 years ago

12 = 3X X = 7X = 57 X = 11X = 27.7 X =

dybincka [34]

Answer:
1. $x=4$
2. $x=\frac{57}{7}$
3. $x=\frac{27.7}{11}$

Explanation:

Given the following questions:

$12=3x$
$7x=57$
$11x=27.7$

In order to find the answers to these questions, we have to recognize that in order to isolate the variable we need to divide on both sides.

Question one:
$12=3x$
$\frac{3x}{3} =\div3$
$12\div3=4$
$x=4$

Question two:
$7x=57$
$\frac{7x}{7} =\div7$
$57\div7=8.14285714=\frac{57}{7}$
$x=\frac{57}{7}$

Question three:
$11x=27.7$
$\frac{11x}{11} \div11$
$27.7\div11=2.51818182=\frac{27.7}{11}$
$x=\frac{27.7}{11}$

Hope this helps.