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3 years ago

5

ordyn went out to lunch. She likes to tip on the taxed amount. Her meal cost $25. There is a 8% tax and she will leave 20% of ta

xed amount as tip. How much will she pay in total? *

1 answer:

igor_vitrenko [27]3 years ago

5 0

2ok is the answer loliliodbjshdhdgrh to

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If a seed is planted, it has a 75% chance of growing into a healthy plant.

Elan Coil [88]

Answer:

9.72405%

Step-by-step explanation:

Binomial Probability

(N choose k) p^k (1-p)^(n-k)

N=7 seeds planted

p= 100% - 70% = 30% = 0.3 <--- we are interested in the plant NOT growing

(1-p) = 70% = 0.7 <--- 70% chance the plant will survive and grow

k=4 <--- we want four of them to fail

The probability is:

(7 choose 4) * (0.3)^4 (0.7)^3 =

7!/(4!3!) (0.3)^4 (0.7)^3 =

(7*6*5/3*2) (0.3)^4 (0.7)^3 =

7*5 (0.3)^4 (0.7)^3 =

35 * 0.0081 * 0.343 = 0.0972405 = 9.72405%

6 0

3 years ago

Can anyone help me convert this to standard form? It can’t have decimals or fractions.

Allisa [31]

Find b of y = mx + b first using a modified version of the equation.

b = y - mx
b = -1 -(1.2×-3)
b = 13/5 = 2.6

y = 1.2x + 2.6 ← result of substituting values of m and b into y = mx + b

-1.2x + y = 2.6 ← result of subtracting 1.2x from both sides

12x - 10y = -26 ← result of multiplying previous equation by -10

6x - 5y = -13 ← result of dividing previous equation by 2

ANSWER: 6x - 5y = -13

5 0

3 years ago

The population of at a town has grown 2% each year. In 1998, the population of the town was about 10,000 people. What was the po

Nuetrik [128]

Answer:

10200

Step-by-step explanation:

This is an example of a compound interest. The equation for this problem is 10000*(1+2/100)^n. The n is the year as 1999 is 1 year away from 1998, you just replace n with 1 and you have a simple equation.

7 0

3 years ago

Please help me find the area of shaded region and step by step

Bumek [7]

Answer:

Part 1) $A=60\ ft^2$

Part 2) $A=80\ cm^2$

Part 3) $A=96\ m^2$

Part 4) $A=144\ cm^2$

Part 5) $A=9\ m^2$

Part 6) $A=(49\pi -33)\ in^2$

Step-by-step explanation:

Part 1) we know that

The shaded region is equal to the area of the complete rectangle minus the area of the interior rectangle

The area of rectangle is equal to

$A=bh$

where

b is the base of rectangle

h is the height of rectangle

so

$A=(12)(7)-(8)(3)$

$A=84-24$

$A=60\ ft^2$

Part 2) we know that

The shaded region is equal to the area of the complete rectangle minus the area of the interior square

The area of square is equal to

$A=b^2$

where

b is the length side of the square

so

$A=(12)(8)-(4^2)$

$A=96-16$

$A=80\ cm^2$

Part 3) we know that

The area of the shaded region is equal to the area of four rectangles plus the area of one square

so

$A=4(4)(5)+(4^2)$

$A=80+16$

$A=96\ m^2$

Part 4) we know that

The shaded region is equal to the area of the complete square minus the area of the interior square

so

$A=(15^2)-(9^2)$

$A=225-81$

$A=144\ cm^2$

Part 5) we know that

The area of the shaded region is equal to the area of triangle minus the area of rectangle

The area of triangle is equal to

$A=\frac{1}{2}(b)(h)$

where

b is the base of triangle

h is the height of triangle

so

$A=\frac{1}{2}(6)(7)-(6)(2)$

$A=21-12$

$A=9\ m^2$

Part 6) we know that

The area of the shaded region is equal to the area of the circle minus the area of rectangle

The area of the circle is equal to

$A=\pi r^{2}$

where

r is the radius of the circle

so

$A=\pi (7^2)-(3)(11)$

$A=(49\pi -33)\ in^2$

7 0

3 years ago

Jaimie is 5 years older than her sisiter amy . if the sum of theier ages is 19, how old is jaimie

zalisa [80]

Jamie is 14 and Amy is 5

5 0

3 years ago