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3 years ago

Please answer this:)

Mathematics

2 answers:

Ne4ueva [31]3 years ago

6 0

The answer is 7/100 :) hope that helps

mamaluj [8]3 years ago

3 0

Answer:

the answer would be 7/100

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10 years ago, there were 35 mountain lions and today there are 21. Find the percent of change.

charle [14.2K]

Answer:

40%

Step-by-step explanation:

I I think they were asking about percentage decrease.percentage decrease=to decrease over original price x 100%

4 0

3 years ago

Your favorite Flip Flops are on sale, 2 for $3.00. The shipping is a flat rate of $5.00 no matter how many Flip Flops you buy. F

andriy [413]

Answer:

2 for $3 $3x23=69 then add shipping which equals $74 you can buy 46 pairs.

Step-by-step explanation:

3 0

3 years ago

Math help what is the answer will give brainliest.

artcher [175]

The two equations are
$x + y = 7$
and
$4x + 2.5y = 22$
the first equation can be solved for x to be
$x = 7 - y$
next you can substitute x in the second equation
$4(7 - y) + 2.5y = 22$
Distribute 4 to everything in the parentheses
$28 - 4y + 2.5y = 22$
combine like terms:
$28 - 1.5y = 22$
subtract 28 from both sides of the equation
$- 1.5y = - 6$
divide both sides by -1.5
$y = 4$
plug this in to the original equation of x+y=7
$x + 4 = 7$
subtract 4 from both sides.
$x = 3$
Final Answer: they bought 3 adult tickets and 4 student tickets

Hope this helps!

7 0

3 years ago

A bottler of drinking water fills plastic bottles with a mean volume of 1,000 milliliters (mL) and standard deviation The fill v

trapecia [35]

Answer:

84.13% of bottles will have volume greater than 994 mL

Step-by-step explanation:

Mean volume = u = 1000

Standard deviation = $\sigma$ = 6

We need to find the proportion of bottles with volume greater than 994. So our test value is 994. i.e.

x = 994

Since the data is normally distributed we will use the concept of z-score to find the required proportion. First we convert 994 to its equivalent z-score, then using the z-table we will find the corresponding value of proportion. The formula to calculate the z score is:

$z=\frac{x-u}{\sigma}$

Substituting the values, we get:

$z=\frac{994-1000}{6}=-1$

This means 994 is equivalent to a z score of -1. Now we will find the proportion of z values which are greater than -1 from the z table.

i.e. P(z > -1)

From the z-table this value comes out to be:

P(z >- 1) = 1 - P(z < -1) = 1 - 0.1587 = 0.8413

Since, 994 is equivalent to a z score of -1, we can write that proportion of values which will be greater than 994 would be:

P( X > 994 ) = P( z > -1 ) = 0.8413 = 84.13%

4 0

3 years ago

Define a variable and write an equation to model each situation. Then solve. Show your work. Tickets to the county fair for four

Citrus2011 [14]

If x is the childrens ticket
$4(x + 1.5) + 5x = 33.30 \\ 4x + 6 + 5x = 33.3 \\ 9x = 33.3 - 6 \\ 9x = 27.3 \\ x = \frac{27.3}{6} \\ x = 4.55$
so that means that the adults ticket is
$x + 1.50 = 4.55 + 1.50 = 6.05$

4 0

3 years ago