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4 years ago

I need it to answer for my assignment plz

Mathematics

1 answer:

Inessa [10]4 years ago

8 0

Answer:

Step-by-step explanation:

The monthly rents paid by the 10 people are

845, 875, 890,900,960, 965, 990, 1015, 1045, 1065.

The mean rent is determined by

Sum of rent paid/ total number of people that paid rent.

Mean = (845+875+890+900+960+965+990+1015+1045+1065) /10 = 9550/10 = 955

Median = (960+965)/2 =1925/2 = 962.5

Suppose that one of the people moves, her rent changes from 1065 to 915, the mean becomes

(845+875+890+900+ 915 + 960+965+990+1015+1045)/10 =9400/10 = 940

The median is (915 +960)/2 =1875/2 = 937.5

Therefore,

a) the mean decreases by

955 - 940 = 15

b) the median decreases by

962.5 - 937.5= 25

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Find the x intercept of the line 2x-3y=-19

Tju [1.3M]

Answer:

See below.

Step-by-step explanation:

Recall that the x-intercept is basically: (x,0).

In other words, we just need to substitute y with 0 in order to find the x-intercept.

Thus, we will have:

$2x-3(0)=-19$

$2x=-19$

$x=-19/2$

7 0

3 years ago

Solve the equation q/1.6=5

koban [17]

Answer:

q = 8

Step-by-step explanation:

To solve for q, you must isolate it.

In this case, you must isolate the q by multiplying 1.6 on both sides.

This makes the answer to be q = 8.

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3 years ago

Read 2 more answers

A painter is using a 8-foot ladder to paint a house. The painter places the ladder 4 feet from the house. How high up the wall d

zavuch27 [327]

Answer:

32 feet high

Step-by-step explanation:

7 0

3 years ago

1. A retirement account is opened with an initial deposit of $8,500 and earns 8.12% interest compounded monthly. What will the a

Rudik [331]

Answer:

Part A) $\$42,888.48$

Part B) $A=\$22,304$

Part C) The graph in the attached figure

Step-by-step explanation:

Part A) What will the account be worth in 20 years?

we know that

The compound interest formula is equal to

$A=P(1+\frac{r}{n})^{nt}$

where

A is the Final Investment Value

P is the Principal amount of money to be invested

r is the rate of interest in decimal

t is Number of Time Periods

n is the number of times interest is compounded per year

in this problem we have

$t=20\ years\\ P=\$8,500\\ r=0.0812\\n=12$

substitute in the formula above

$A=8,500(1+\frac{0.0812}{12})^{12*20}$

$A=8,500(1.0068)^{240}$

$A=\$42,888.48$

Part B) What if the deposit were compounded monthly with simple interest?

we know that

The simple interest formula is equal to

$A=P(1+rt)$

where

A is the Final Investment Value

P is the Principal amount of money to be invested

r is the rate of interest

t is Number of Time Periods

in this problem we have

$t=20\ years\\ P=\$8,500\\r=0.0812$

substitute in the formula above

$A=8,500(1+0.0812*20)$

$A=\$22,304$

Part C) Could you see the situation in a graph? From what point one is better than the other?

Convert the equations in function notation

$A(t)=8,500(1.0068)^{12t}$ ------> equation A

$A(t)=8,500(1+0.0812t)$ -----> equation B

using a graphing tool

see the attached figure

Observing the graph, from the second year approximately the monthly compound interest is better than the simple interest.

5 0

3 years ago

PLEASE HELP. I'LL GIVE BRAINLIEST.

vova2212 [387]

<h2>Answer:</h2>

The answer is 16.

<h2>Step-by-step explanation:</h2>

Since the 8x is positive, the equation must have y as a positive number.

Let's see this!

An easy way to complete the square if you have the constants for x2 and

But not the non-variable number is to divide the x constant, and then square it.

Example:

$\frac{8x}{2} \\\\4^2=16\\$

The last number must be 16. Let's check it.

$(x+4)^2=x^2+8x+16$

6 0

2 years ago