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2 years ago

Alina mixed 3 L of pineapple juice with every 7 L of orange juice in order to make fruit punch.

Mathematics

1 answer:

Elodia [21]2 years ago

5 0

Answer:

adora stop stalking me bih !

Step-by-step explanation:

i acc need to go now

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Today the price of a new cell phone is $129 in 2000 the price of a similar cell phone was $240 what is the percent of the change

netineya [11]

Answer:

46.25% is the percent of the change in the price of a cell phone from 2000 to today.

Step-by-step explanation:

Cost of a cell phone in the year of 2000. C= $240

Cost of a same cell phone today, C'= $129

The percent of the change in price:

$\frac{C-C'}{C}\times 100$ :

$\frac{\$240-\$129}{\$240}\times 100=46.25\%$

46.25% is the percentage of the change in the price of a cell phone from 2000 to today.

5 0

2 years ago

Line m has a slope of -3. Another line n is parallel to line m. What is the slope of line n?

Elis [28]

Answer: slope of line n = -3

Reason: Parallel lines have equal slopes, but different y intercepts.

8 0

3 years ago

Please help me please help help me help please

notsponge [240]

Answer:

An equation of a line is written in the form y=mx+b. ”m” is the slope and ”b” is the y-intercept. So, substituting the values, the equation is y=-4x+1.

7 0

2 years ago

13) You are setting the combination on a

Andre45 [30]

Answer:

there are 9 possibilities I think

3 0

2 years ago

4 - 5/2 * (1/10x) = 1 what is the value of x

Inga [223]

$4 - 5 / 2 * (1/10x) = 1\\$

The first step is to identify the order in which the equation must be solved, by following PEMDAS (you might know it as BEDMAS):

Parenthesis (or Brackets)

Exponents

Multiplication and Division

Addition and Subtraction

My advice would be to add parenthesis, following these rules, if you are not very good at finding them immediately by sight.

So:

$4 - 5 / 2 * (\frac{1}{10x}) = 1\\\\4 - [(5/2)*(\frac{1}{10x})]=1\\\\4-(2.5*\frac{1}{10x})=1\\\\4-\frac{2.5}{10x}-1=0\\3-\frac{x}{4}=0\\\frac{x}{4}=3\\x=3*4\\x=12$

We check our answer:

$x=12\\4 - [(5 / 2) * (1/10)*(x)] = 1\\4 - [(5 / 2) * (\frac{1}{10}) * (12))] = 1\\4 - [2.5 * (\frac{1}{10})*12] = 1\\4 - [(\frac{2.5}{10})*12] = 1\\4 - [(\frac{1}{4})*12] = 1\\4 - 3 = 1\\1=1$

We are right!

So, $x=12$ .

6 0

3 years ago