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3 years ago

15

the length of time to set up is 200 min. the time to paint each sign is 25 min. write an equation for this statement, then creat

e a table of values and graph.

1 answer:

Molodets [167]3 years ago

6 0

25+200=X that is your equation

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Peter has money in two savings accounts. One rate is 6% and the other is 14%. If he has $900 more in the 14% account and the tot

-BARSIC- [3]

Answer:

$1375 at 14%
$475 at 6%

Step-by-step explanation:

Let x represent the amount Peter invested at 14%. Then (x-900) is the amount he invested at 6%. His total interest earned is ...

0.14x + 0.06(x -900) = 221

0.20x = 275 . . . . . . . . . . . . . . . . add 54, simplify

x = 1375 . . . . . . . . . . . . . . . . . . . .divide by 0.2; amount invested at 14%

(x-900) = 475 . . . . . . . . . . . . . . . amount invested at 6%

Peter invested $475 in the 6% account and $1375 in the 14% account.

7 0

3 years ago

MULTIPLE CHOICE A triangle has an angle that measures 41° and an angle

m_a_m_a [10]

Answer:

117

Step-by-step explanation:

Sum of all the angles of a triangle is 180

Let the third angle be 'x'

41 + 22 + x = 180

63 + x = 180

x = 180 - 63

x = 117

7 0

3 years ago

Read 2 more answers

Convert 2/800 as a decimal using an equivalent fraction

grin007 [14]

Answer:

The answer I got was 0.003

8 0

3 years ago

Holly and her two best friends go to dinner the total bill is $31.84 they use a coupon for 15% off the total if they split the b

Leno4ka [110]

The bill after applying the coupon = 31.84*(85%) = 27.064

so each of them will pay : 27.064/3 = $9.021

3 0

3 years ago

4.) The time X (minutes) for a lab assistant to prepare the equipment for a certain experiment is believed to have a uniform dis

Jet001 [13]

Answer:

$P(35-2 < X 35+2) = P(33< X< 37)= P(X$

And using the cumulative distribution function we got:

$P(35-2 < X 35+2) = P(33< X< 37)= P(X$

The probability that preparation is within 2 minutes of the mean time is 0.134

Step-by-step explanation:

For this case we define the following random variable X= (minutes) for a lab assistant to prepare the equipment for a certain experiment , and the distribution for X is given by:

$X \sim Unif (a= 20, b =50)$

The cumulative distribution function is given by:

$F(x) = \frac{x-a}{b-a} , a \leq X \leq b$

The expected value is given by:

$E(X) = \frac{a+b}{2} = \frac{20+50}{2}=35$

And we want to find the following probability:

$P(35-2 < X 35+2) = P(33< X< 37)$

And we can find this probability on this way:

$P(35-2 < X 35+2) = P(33< X< 37)= P(X$

And using the cumulative distribution function we got:

$P(35-2 < X 35+2) = P(33< X< 37)= P(X$

The probability that preparation is within 2 minutes of the mean time is 0.134

8 0

3 years ago