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Doss [256]
2 years ago
6

A display case of wallets are marked 32 for $5. If Tim has $80, how many wallets can Tim get? (Assume no tax or other fees.)

Mathematics
2 answers:
Levart [38]2 years ago
7 0
1 wallet= 5/32= 0.15625
Wallets for $80= 0.15625*80=12 wallets
UNO [17]2 years ago
4 0

Answer:

6.5 times 80 equals 512

Step-by-step explanation:

all you got to do is divide 32 by 5 then the answer times 80

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If a line with a slope of 6 crosses the y-axis at (0,-4), what is the equation of the line?
aev [14]

Answer:

y = 6x-4

Step-by-step explanation:

The slope intercept form of a line is

y = mx+b where m is the slope and b is the y intercept

We know the slope is 6 and the y intercept is -4

y = 6x + -4

y = 6x-4

6 0
2 years ago
Read 2 more answers
Of all the trees planted by a landscaping firm, 45% survive. What is the probability that 13 or more of the 15 trees they just p
Brrunno [24]

<u>ANSWER:  </u>

The probability for 13 or more of the 15 trees they just planted will survive is 0.00110702414

<u>SOLUTION: </u>

Given,

The total number of plants is, n=15

The chance of survival of trees is, p=45%.  

Probability of getting success p(success) = \frac{n o \text { of favourable outcomes }}{\text {total possible outcomes}}

P(success) = \frac{45}{100}

P(success) = 0.45

Binomial distribution formula is given as

\mathrm{P}(\mathrm{X}=\mathrm{x})=\mathrm{n}_{\mathrm{C} \mathrm{x}}(\mathrm{p})^{\mathrm{x}} \cdot(1-\mathrm{p})^{\mathrm{n}-\mathrm{x}}

In our case, x is greater than or equal to 13, i.e. x \geq 13

The probability for 13 or more of the 15 trees they just planted will survive is given by

\mathrm{P}(\mathrm{X} \geq 13)=\mathrm{P}(\mathrm{X}=13)+\mathrm{P}(\mathrm{X}=14)+\mathrm{P}(\mathrm{X}=15)

\mathrm{P}(\mathrm{X} \geq 13)=\left(15 \mathrm{C}_{13} \times(0.45)^{13} \times(1-0.45)^{15-13}\right. + \left(^{15} \mathrm{C}_{14} \times(0.45)^{14} \times(1-0.45)^{15-14}\right. + \left(15 \mathrm{C}_{15} \times(0.45)^{15} \times(1-0.45)^{15-15}\right.

on simplification we get

=(15 \times 7) \times(0.45)^{13} \times(0.55)^{2}+15 \times(0.45)^{14} \times(0.55)^{1}+1 \times(0.45)^{15} \times 1

\begin{array}{c}{=(105 \times 0.00003102863 \times 0.3025)+(15 \times 0.00001396288 \times 0.55)+} \\ {0.00000628329}\end{array}

=0.00098554703 + 0.0001151938 + 0.00000628329

= 0.00110702414

Hence, the probability for 13 or more of the 15 trees they just planted will survive is 0.00110702414

7 0
3 years ago
The normal to the curve y =root x, at the point where x=1 and x=4 meet at P, find the coordinates of P.
OverLord2011 [107]

The curve is y = sqrt{x}.

Replace x in the curve with 1 and then with 4 to find your point.

y = sqrt{1}

y = 1

First point (1, 1).

y = sqrt{4}

y = 2

Second point (4, 2).

Take it from here.

5 0
2 years ago
One of the smallest pools on the ship has about 45,000 gallons of water in it.
gtnhenbr [62]

Amount of water in the pool at the end of the day is 5457798.7 gallons

<u>Explanation:</u>

Given:

Initial amount of water in the pool = 45,000 gallons

Increase in amount = 0.75 in per minute

Time, t = 1 day

t = 24 X 60 min

t = 1440 min

So,

Increase in amount of water in 1 day = 0.75 in X 1440

                                                             = 1080 in

Volume of 1080 in of water = (1080 in)³

Volume from cubic inch to gallon = 5453298.7 gallon

Amount of water in the pool at the end of the day = 45000 + 5453298.7 gallon

                                                                                   = 5457798.7 gallon                                          

5 0
3 years ago
Help really need help with this
Ray Of Light [21]

Answer:

The answer is at 8:00 o’clock.

Step-by-step explanation:

So the Martinez family started 30 min after the Smith’s family. Smith’s family started one hour before Carson’s family. So it means the Smith’s family started at 7:30 and Martinez family started 30 min later. It means at 8:00 o’clock.

5 0
2 years ago
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