SOMEONE PLEASE HELP ME

Answer:

Amount invested at 8% rate of interest = $11000

Amount invested at 9% rate of interest = $9000

Step-by-step explanation:

Let Amy invested amount in a account with 8% simple interest = $a

Then the interest gained after one year = [tex]\frac{\text{Principal amount}\times \text{Rate of interest}\times \text{Time}}{100}[/tex]

                                                                  = [tex]\frac{a\times 8\times 1}{100}[/tex]

                                                                  = 0.08a

Remaining amount for the investment = $(20000 - a)

Interest earned after one year with rate of interest 9%

= [tex]\frac{(20000-a)\times 9\times 1}{100}[/tex]

= $(1800 - 0.09a)

Total interest earned after 1 year = $1690

0.08a + (1800 - 0.09a) = 1690

1800 - 0.01a = 1690

0.01a = 110

a = $11000

Amount invested at 8% rate of interest = $11000

Amount invested at 9% rate of interest = $(20000 - 11000) = $9000

Answer:

She needs to buy 420 candy hearts.

Step-by-step explanation:

15*28 = 420

15 per student, and there is 28 students

The number of candy hearts that she needs to purchase will be 420.

Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.

The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.

Miss Hillard is buying treats hearts to disperse to 28 understudies in her number-related class and Valentine's Day issue would like every understudy to get at least 15 sweets hearts.

Then the number of candy hearts that she needs to purchase will be given as,

⇒ 15 x 28

⇒ 420

The number of candy hearts that she needs to purchase will be 420.

More about the Algebra link is given below.

https://brainly.com/question/953809

#SPJ2

Answer:

-40 your welcome

Step-by-step explanation:

Answer:

172000

Step-by-step explanation:

Population growth from  2010 to 2015 if population increased by 8% =

1.08 x 168,000. = 181440

Population growth from  2015 to 2020 if population decreased by 5% =

0.95 x 181440 = 172,368

Rounding off to the nearest 100 people = 172,000

The population in the year 2020 is 172,368.

Since

In 2010, the population of a city was 168,000. From 2010 to 2015, the population grew by 8%. From 2015 to 2020, it fell by 5%.

So,

[tex]= 168000 \times 1.08 \times 0.95[/tex]

= 172,368

hence, The population in the year 2020 is 172,368.

Learn more about population here: https://brainly.com/question/13977748

Answer:

f(50) = 109.44943 feet

Step-by-step explanation:

Modeling

The model of a situation where the skid distance f is measured against the car speed x can be expressed as:

[tex]f(x) = 0.0425x^2 + 0.07381x - 0.49107[/tex]

Using this equation, we can predict the skid distance for a car that is driving at x=50 mph by substituting in the equation of the model:

[tex]f(50) = 0.0425*50^2 + 0.07381*50 - 0.49107[/tex]

[tex]f(50) = 106.25 + 3.6905 - 0.49107[/tex]

f(50) = 109.44943 feet

Answer:

The answer is C

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

if you see where the red line ends on the right side it is at 170 on the protractor

Answer:

10 quarters and 2 nickels

Step-by-step explanation:

38 x .5 = 1.90

4.50 - 1.90 = 2.60

10 quarters and 2 nickels.

Answer:

answer is 8.5

Step-by-step explanation:

Answer: the answer is circle

Step-by-step explanation: hope that helped

Answer:

4/24

Step-by-step explanation:

Answer:

21 ounces

Step-by-step explanation:

Answer:

15 ounces

Step-by-step explanation:

we know that the whole is 30  we know that Alex 1/10 and glen has 2/5 we dont know wht left over :: 1/10 + 2/5 = 1/10 + : 4/10 = 5/10 so 1 - 5/10 = 5/10

We need to find how many ounces of clay are left. Which equation can we use to find how many ounces are in 5/10

of the whole bucket?    5/10 x 30  and 5x 30 10

15 onces

Using the hypergeometric distribution, it is found that the probability is 12/132

------------------------------------

The rolls are chosen from a sample without replacement, which means that the hypergeometric distribution is used to solve this question.

------------------------------------

Hypergeometric distribution:

The probability of x successes is given by the following formula:

[tex]P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}[/tex]

In which:

x is the number of successes.

N is the size of the population.

n is the size of the sample.

k is the total number of desired outcomes.

Combinations formula:

[tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

------------------------------------

------------------------------------

What is the probability of selecting two defective rolls?

This is P(X = 2). So

[tex]P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}[/tex]

[tex]P(X = 2) = h(2,12,2,4) = \frac{C_{4,2}*C_{8,0}}{C_{12,2}} = \frac{4 \times 3}{12 \times 11} = \frac{12}{132}[/tex]

12/132 is the probability.

A similar problem is found at https://brainly.com/question/24229905

Answer:

The Answer is B

Step-by-step explanation:

All the numbers and coefficients in option B correspond with the ones in the question. Hope this helps :)

Answer: -260

Step-by-step explanation:

Answer:

-260

Step-by-step explanation:

First, we have to distribute -10 to 32 and -6, since 32 - 6 is in parentheses.

So, the expression becomes -320 + 60, because -10 × 32 = -320 and -10 × -6 = 60.

So, -320 + 60 = -260

Answer and Step-by-step explanation:

one divided by (in parentheses) x minus eight should look like this:

[tex]\frac{1}{x-8}[/tex]

This is a graph of this expression.

#teamtrees #WAP (Water And Plant)

Answer:

2.08secs

Step-by-step explanation:

Given the equation modeled by the height as h=-121t^2 +504t

The velocity of the object at the max height is zero, hence;

v = dh/dt = 0

dh/dt = -2(121)t + 504

dh/dt = -242t + 504

0 = -242t + 504

242t = 504

t = 504/242

t = 2.08secs

Hence the projectile reaches its maximum height after 2.08secs

Answer:

measurement square meter

Step-by-step explanation:

thats good answer

sana po makatulong po sa inyo

po....................

Answer: $20.35 on gallons of gas and $25.2 on cans of oil

Answer:

Monomial

Step-by-step explanation:

Monomial is only one value therefore the following value is a monomial.

[tex]-9x^2y^5[/tex]

1/2 degree x 6 hours = 3 degree increase.

-12 + 3 = -9

The temperature at noon was -9 degrees.

Answer:

He practicably stole her money

Step-by-step explanation:

that scu m bag

Answer:

Step-by-step explanation:

If Oliver just played the game he has $0 dollars but in terms of debt, he has -$4.

Answer: [tex]\dfrac{5}{14}[/tex]

Step-by-step explanation:

Given: An urn contains 3 red and 5 orange marbles.

Total marbles = 3+5=8

Probability of getting orange marble = [tex]\dfrac{\text{Number of orange marble}}{\text{Total}}[/tex]

[tex]=\dfrac{5}{8}[/tex]

Now marbles left = 7

Orange marbles left = 4

and Probability of getting orange marble = [tex]\dfrac47[/tex]

The probability that the second marble selected is orange given that the first marble selected is orange[tex]=\dfrac58\times\dfrac47=\dfrac{5}{2}\times\dfrac17=\dfrac{5}{14}[/tex]

Required probability= [tex]\dfrac{5}{14}[/tex]

Answer:

Step-by-step explanation:

3/(100-1)

3/99

1/33

Answer:

the answer is 3r + 2b

Step-by-step explanation:

because they are two completely different terms, they need to have both same terms like: 2r + 3r= 5r, you can do that because they are like terms, Let me know if I'm right

Answer:

your answer is 4

Step-by-step explanation:

Answer:

90°

Step-by-step explanation:

Hi!

I forgot the theorems exact name but it's something like "radius to a line that is tangent to the circle is always perpendicular to the tangent line" and perpendiular means 90°

Step-by-step explanation:

Factorise completely

a 6x2 + 18x

Common factors

6x(x+3)

b 8y3 – 2y4

2y^3(4-y)

c 16xy – 8xy?

8xy(2-1)

8xy

8 Expand and simplify

a 4(x + 3) + 7(x - 1)

4x+12+7x-7

11x+5

b x(x – 6) – x(4x – 2)

x^2-6x-4x^2+2x

-3x^2-4x

-x(3x+4)

C x(3x2 + 4) + 2x(5x2 + 9)

3x^3+4x+10x^3+18x

13x^3+22x

x(13^2+22)

Answer:

x = 125.44

Step-by-step explanation:

you multiply both side by 7

so 7 • 17.92 = 7 • x/7

125.44 = x

Answer:

x = 125.44

Step-by-step explanation:

multiply each side of the equation by 7

17.92(7) = [tex]\frac{x}{7}[/tex](7)

125.44 = 7x / 7

7x / 7 = 1x or x

x = 125.44