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Illusion [34]
4 years ago
8

Sarah bought a lawnmower for $320. She signed up for the buy now pay later plan at the store with the following conditions: $100

down and payments of $25 for the next 12 months. The extra cost paid by taking this plan is equivalent to what actual yearly rate of interest? A. 85%
B. 65%
C. 67%
D. 25%
Student Answer: D
Answer: Incorrect
Mathematics
2 answers:
ANEK [815]4 years ago
6 0

100 down+25 x 12 months
100+25 x 12
100+300
400

400-320=80

find percent increase since it is 1 year
80/320=8/32=4/16=2/8=1/4=0.25/1 

 100
<span>0.25/1 times 100/100=25/100=25%

So, Our answer is D</span>
Karolina [17]4 years ago
4 0
The correct answer is C. 67%
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If the nth term of a sequence is 3n+2 them T³= T⁵=T¹⁵=​
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Answer:

T^75

Step-by-step explanation:

3 times 5 = 15

5 times 15 = 75

7 0
4 years ago
Simplify the following expressions. All answers should be in standard form.
Ratling [72]

Answer:

The given expression in simplified form is: 15x^2+10x

Step-by-step explanation:

Simplifying the expression involve reducing the number of terms to minimum and making the expressions in standard form.

This may involve addition, subtraction and multiplication of variables.

Given expression is:

5x(3x+2)

Distributing 5x will give us:

= 5.3.x.x + 5.2.x\\=15x^2+10x

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The given expression in simplified form is: 15x^2+10x

6 0
3 years ago
I need to know the answer to my question
stiks02 [169]
If you're using the app, try seeing this answer through your browser:  brainly.com/question/2789579

_______________


Solve the incomplete quadratic equation:

\mathsf{3m^2-24m=0}\\\\ \mathsf{3m\cdot m-3m\cdot 8=0}\\\\ \mathsf{3m\cdot (m-8)=0}\\\\ \begin{array}{rcl} \mathsf{3m=0}&~\textsf{ or }~&\mathsf{m-8=0}\\\\ \mathsf{m=0}&~\textsf{ or }~&\mathsf{m=8} \end{array}


Solution set:   S = {0,  8}.


I hope this helps. =)

4 0
4 years ago
The annual rainfall (in inches) in a certain region is normally distributed with = 40 and = 4. What is the probability that star
sdas [7]

Answer:

0.93970

Step-by-step explanation:

Solution:-

- Denote a random variable "X" The annual rainfall (in inches) in a certain region . The random variable follows a normal distribution with parameters mean ( μ ) and standard deviation ( σ ) as follows:

                          X ~ Norm ( μ , σ^2 )

                          X ~ Norm ( 40 , 4^2 ).

- The probability that it rains more than 50 inches in that certain region is defined by:

                          P ( X > 50 )

- We will standardize our test value and compute the Z-score:

                          P ( Z > ( x - μ )  / σ )

Where, x : The test value

                          P (  Z > ( 50 - 40 )  / 4 )

                          P (  Z > 2.5 )

- Then use the Z-standardize tables for the following probability:

                          P ( Z < 2.5 ) = 0.0062

Therefore,          P ( X > 50 ) = 0.0062

- The probability that it rains in a certain region above 50 inches annually. is defined by:

                           q = 0.0062 ,

- The probability that it rains in a certain region rains below 50 inches annually. is defined by:

                           1 - q = 0.9938

                           n = 10 years   ..... Sample of n years taken

- The random variable "Y" follows binomial distribution for the number of years t it takes to rain over 50 inches.

                          Y ~ Bin ( 0.9938 , 0.0062 )

- The probability that it takes t = 10 years for it to rain:

                         =  10C10* ( 0.9938 )^10 * ( 0.0062 )^0

                         = ( 0.9938 )^10

                         = 0.93970

3 0
3 years ago
Help with finding proofs​
nadya68 [22]

Answer:

Statement: ∠XYZ = ∠ABC     Reasons: Below

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7 0
1 year ago
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