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Pavlova-9 [17]
3 years ago
7

If the simple interest on $7,000 for 4 years is $1,400, then what is the interest rate?

Mathematics
1 answer:
abruzzese [7]3 years ago
4 0

Answer:

R=5%/year

Step-by-step explanation:

R = 5%/year

Equation:

r = I / Pt

Calculation:

Solving our equation

r = 1400 / ( 7000 × 4 ) = 0.05

r = 0.05

converting r decimal to a percentage

R = 0.05 * 100 = 5%/year

The interest rate required to

accumulate simple interest of $ 1,400.00

from a principal of $ 7,000.00

over 4 years is 5% per year.

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A stainless steel patio heater is a square pyramid. The length of one side of the base is 22.2 in. The slant height of the pyram
Mice21 [21]

Answer:

<h2>The height is 87.5 in</h2>

Step-by-step explanation:

We can solve the height of a square pyramid using the Pythagoras theorem, this is because the slant height the height and the section of the base form a right triangle

the slant height is equivalent to the hypotenuse

the height is equivalent to the opposite

while the base(half) is the adjacent

Given

the base of the pyramid= 22.2 in

the adjacent is = \frac{22.2}{2} = 11.1 in

the slant height (hypotenuse)= 88.2 in

we know that Pythagoras theorem states that "The sum of the squares of the lengths of the legs of a right triangle ('a' and 'b' in the triangle) is equal to the square of the length of the hypotenuse ('c').

c^2=a^2 + b^2

hyp^2=opp^2+adj^2

substituting we have

88.2^2=opp^2+11.1^2\\opp^2= 88.2^2-11.1^2\\opp^2=7779.24-123.21\\opp^2=7656.03\\opp=\sqrt{7656.03} \\opp=87.498\\opp=87.50 in

3 0
3 years ago
A pizza shop advertises that they deliver in 30 minutes or less or it is free. People who live in homes that are located on the
vitfil [10]

Answer:

u

Step-by-step explanation:

Solution:-

- Claim : pizza shop deliver in 30 minutes or less or it is free.

- Alternate : People who live in on opposite side of town believe it will take the pizza shop longer than 30 minutes to make and deliver the pizza.

- Sample size taken n = 50 > 30

- The sample mean = 32 mins

- The appropriate symbol for sample mean used in test statistics is (u).

5 0
3 years ago
The student to faculty ratio at a small college is 17:3 the total number of students and faculty is 740. How many faculty member
larisa86 [58]

Answer:

111

Step-by-step explanation:

It is given that the student to faculty ratio at a small college is 17:3.

Let number of students and faculty members are 17x and 3x respectively.

It is given that total number of students and faculty is 740.

17x+3x=740

20x=740

Divide both sides by 20.

x=37

Number of student =17\times 37=629

Number of faculty members =3\times 37=111

Therefore, there are 111 faculty members at the college.

3 0
3 years ago
How do you even do this?! i’m so confused
SIZIF [17.4K]

Answer:

D.

Step-by-step explanation:

Pretend the y-axis is a wall, on the left side it is decreasing and on the right it is increasing, so A. and B. aren't correct. C. and D. are left, x<0 means on the left side of the y-axis because x (any number) is less than 0 and on the left side it is decreasing so C. isn't correct so D. is your answer because x>0 means x is greater than 0 so it's on the left side of the y-axis.

I hope this helps!

7 0
2 years ago
Help me please!!!!!!!!!!!!!!!!
lesya [120]
Plug in x and y into the equations and see which one comes out true...
Also, K12 person huh?
4 0
3 years ago
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