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2 years ago

14

The formula for finding the perimeter of an equilateral triangle is P=3s. How can you transform the formula so that it can be us

ed to determine the length of one side of the triangle when given the perimeter?
A) 3P=s
B) P/s=3
C) Ps=3
D) P/3=s

1 answer:

tiny-mole [99]2 years ago

3 0

If the formula is P = 3s, then to find side length (s) the formula will become...

s = P/3

answer D

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1.toyland is having a sale all items are 20% off How much will you save on an item that usually costs $95?

ladessa [460]

T<span>oyland is having a sale all items are 20% off

so all items are sold at 1-20% = 80% of their original prices

for </span><span>an item that usually costs $95,
</span><span>
the sale price = $95 * 80% = $95 * 0.8

= $76

good luck w Mr. Horton :)

</span>

5 0

3 years ago

Read 2 more answers

a repair bill for your car is 553. the parts cost 265. the labor cost is 48 per hour write and solve an equation to find the num

Effectus [21]

Let's represent the number of hours with the variable 'h' (or whatever letter you want it to be):

265 + 48h = 553

Substract both sides by 265:

48h = 288

Divide:

h = 6

6 hours of labor was spent

8 0

2 years ago

A shirt originally cost $39.39, but it is on sale for $27.57. What is the percentage decrease of the price of the shirt?

IgorLugansk [536]

30 percent decrease

Step-by-step explanation:

looking at this i know its a percent decrease

so how do we find percent decrease ?

first we subtract the first value 39.39 & the final value 27.57

39.39-27.57 = 11.82

then we divide 11.82 by the first value

like this 11.82÷39.39 = 0.3000

then we multiply what we got by 100

0.3000×100= 30 percent

the way that most people mess up is when they divide sometimes they might do 39.39 divided by 11.82 instead of 11.82÷39.39.

3 0

2 years ago

1. In order to get more female customers, a new clothing store offers free gourmet coffee and pastry to its customers. The avera

ioda

Answer:

No, the manager is not correct based on the 95% confidence interval.

Step-by-step explanation:

We are given that the average daily revenue over the past five-week period has been $1,080 with a standard deviation of $260, i.e.; X bar = $1080 and s = $260 and sample size, n = 35 .

The Pivotal quantity for 95% confidence interval is given by;

$\frac{Xbar - \mu}{\frac{s}{\sqrt{n} } }$ ~ $t_n_-_1$

where, X bar = sample mean = $1080

s = sample standard deviation = $260

n = sample size = 35 {five-week}

So, 95% confidence interval for average daily revenue, $\mu$ is given by;

P(-2.032 < $t_3_4$ < 2.032) = 0.95

P(-2.032 < $\frac{Xbar - \mu}{\frac{s}{\sqrt{n} } }$ < 2.032) = 0.95

P(-2.032 * ${\frac{s}{\sqrt{n} }$ < ${Xbar - \mu}$ < 2.032 * ${\frac{s}{\sqrt{n} }$ ) = 0.95

P(X bar - 2.032 * ${\frac{s}{\sqrt{n} }$ < $\mu$ < X bar + 2.032 * ${\frac{s}{\sqrt{n} }$ ) = 0.95

95% confidence interval for $\mu$ = [ X bar - 2.032 * ${\frac{s}{\sqrt{n} }$ , X bar + 2.032 * ${\frac{s}{\sqrt{n} }$ ]

= [ 1080 - 2.032 * ${\frac{260}{\sqrt{35} }$ , 1080 + 2.032 * ${\frac{260}{\sqrt{35} }$ ]

= [ 990.70 , 1169.30 ]

<em>No, the manager is not correct based on the fact that the coffee and pastry strategy would lead to an average daily revenue of $1,200 because the calculate 95% confidence interval does not include value of $1200.</em>

Therefore, the store manager believe is not correct.

8 0

3 years ago

Find the slope of the line.

BaLLatris [955]

Answer:

2/1

Step-by-step explanation:

I think that that could be it

7 0

2 years ago