1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
jeyben [28]
3 years ago
11

Describe and correct the error in solving the inequality 9x > -45

Mathematics
1 answer:
Mnenie [13.5K]3 years ago
3 0
9x > -45
__ __
9 9

x > -5-----> ANSWER


if :
-9x > -45
___ ___
-9 -9

x < 5
You might be interested in
Over time, the value of the property at 397 West Lake Street increased by 275%. If the initial value of the property was P, whic
larisa86 [58]

Answer: Third option is correct.

Step-by-step explanation:

Since we have given that

Initial value of the property = P

Rate of growth = 275%

So, we need to find the property's current value:

We will use "compound interest ":

Amount=P(1+\dfrac{r}{100})^t\\\\Amount=P(1+\dfrac{275}{100})^1\\\\A=P(1+2.75)\\\\A=3.75P

Hence, Third option is correct.

4 0
3 years ago
Question: 3 of 20
zysi [14]

Answer:

Sean earns $7.5 in each hour.

Step-by-step explanation:

Given:

Money earned by Sean = $300

Number of hours worked in a day = 8 hrs

Number of days of work  in a week = 5

We need to find Money earned in each hour.

First we will find Total hours work in a week.

Total hours work in a week is equal to Number of hours worked in a day multiplied by number of days work in a week.

Framing in equation form we get;

Total hours worked in a week = 8\times5 = 40\ hrs

Now we will find money earned for each hour.

Money earned each hour will be calculated by Dividing Total Money earned in a week by Total number of hours worked in a week.

Framing in equation form we get;

Money earned each hour = \frac{300}{40} = \$7.5

Hence Sean earns $7.5 in each hour.

8 0
3 years ago
A set of data already has the values 11, 14, 23, and 16. What value would have to be added to the set for the mean of the
poizon [28]

Answer: 26

Step-by-step explanation:

Mean = total sum of data set / frequency of data set

6 0
3 years ago
Find Y if AB bisects DAC and CB bisects ACE
xxMikexx [17]

Answer:

L1 and L2 are parallel

BAC = 58° as it is given in the question that AB bisects DAC

similarly BCE = y°

angle B = 90° ( from figure)

Y + 58° + 90° = 180 ( angle Sum property of a triangle).

Y + 148° = 180°

Y = 180 - 148

Y = 32°

5 0
2 years ago
Mr. Noel borrowed money from his cousin at a rate of 10% simple interest. After 1 year, $440
Alborosie

Answer:

<h2>$400</h2>

Step-by-step explanation:

Using the formula for calculating the simple interest expressed as;

Simple Interest = Principal * rate * time/100

Note that the principal is the amount he originally borrowed

I = PRT/100 ............ 1

Amount paid off A = Principal+Interest

A = P+I ............ 2

From equation 2; I = A-P......... 3

Substitute equation 3 into 1;

A-P = PRT/100

Given A = $440, R = 10%, Time = 1year

Substitute the given parameters into the resulting equation;

440 - P = P*10*1/100

440-P = 10P/100

440-P = 0.1P

440 = 0.1P+P

440 = 1.1P

Divide through by 1.1;

1.1P/1.1 = 440/1.1

P = $400

<em>Hence the amount Mr Noel originally borrow is $400</em>

5 0
3 years ago
Other questions:
  • How many students<br> slept 540 or less<br> minutes at night?
    9·2 answers
  • What is the midpoint of the x-intercepts of
    14·2 answers
  • Grayson read 8 books in 2 months. What was his rate of reading in months per book?
    5·1 answer
  • Find the equation of a line parallel to y=3x+2 that contains the point (2,−4).
    15·1 answer
  • If a line is horizontal, its slope is 1) 1 <br> 2) 0<br> 3) undefined <br> 4) negative
    14·1 answer
  • Mr. Carter’s car has an 18-gallon gas tank. How much money will he spend to fill up his tank if gas costs $2.35 per gallon?
    14·1 answer
  • In ΔPQR, the measure of ∠R=90°, RQ = 55, PR = 48, and QP = 73. What ratio represents the sine of ∠Q?
    9·1 answer
  • Diego measured the length of a pen to be 22 cm.
    7·2 answers
  • |4x-1|=37 absolute values
    11·2 answers
  • The following represents slopes of two lines. Which answer choice describes the two lines? m = 7 and m = -7
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!