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
Sophie [7]
3 years ago
7

What is adding and subtracting decimals

Mathematics
2 answers:
alekssr [168]3 years ago
8 0

Adding and subtracting decimals are easy to understand you are just adding a decimal point

For example, 2 plus 2 equals 4

2.0 plus 2.0 equals 4.0

Marta_Voda [28]3 years ago
7 0
.01 + .01 = .02

.01 - .01 = .00
You might be interested in
A right rectangular prism is shown. What shape best describes the cross section cut perpendicular to the base of a right rectang
bulgar [2K]
C  a rectangle. brainily says this is too short so I am writing more 
3 0
3 years ago
Enter the slope of the line through the points (4 , 15) and (4 , 12)​
pentagon [3]

Answer:

Step-by-step explanation:

slope m= (y2-y1) / (x2-x1) = 15-12 / 4-4 = 3/0 is undefined since we can not divide by 0

slope is undefined so the line is vertical

7 0
2 years ago
Read 2 more answers
Can someone please help me in one of these!?
Anarel [89]

Answer:

9) y = -200x + 1200

11) slope = -2

15) $2,450

16) 9 days

Step-by-step explanation:

9) Given the two points from the graph:

Let (x₁, y₁) = (0, 1200)

(x₂, y₂) =  (1, 1000)

Substitute these values into the following slope formula:

m = (y₂ - y₁)/(x₂ - x₁)

m = (1000 - 1200)/(1 - 0)

m = -200/1

m = -200

The slope of the line is -200.

Next, we need to determine the y-intercept, which is the point on the graph where it crosses the y-axis. Upon observing the graph, it shows that the line crosses at point (0, 1200). The y-coordinate of this ordered pair is the value of the y-intercept, b = 1200.

Therefore, the linear equation in slope-intercept form is y = -200x + 1200.

<h3>11) Given the points, (5, -18) and (-4, 0): </h3>

Let (x₁, y₁) =(5, -18)

(x₂, y₂) =  (-4, 0)

Substitute these values into the following <u>slope formula</u>:

m = (y₂ - y₁)/(x₂ - x₁)

m = \frac{0 - (-18)}{-4 - 5} = \frac{0 + 18}{-9} = -2

Therefore, the slope of the line is -2.

<h3>15) Solve:</h3>

Given the fixed fee of $200, and the $150 per hour after the initial meeting:

We can represent these in slope-intercept form:

y = 150x + 200

y = total cost for the Attorney's services

x = number of hours worked.

The y-intercept in this given problem is $200, which represents the flat fee charged for the initial meeting. While the slope in this equation is $150, which is the hourly rate that an Attorney charges his clients after the initial meeting.

If an Attorney works for 15 hours, then:

Let x = 15, and substitute its value into the equation to find the total cost:

y = 150x + 200

y = 150(15) + 200

y = 2,250 + 200

y = 2,450

Therefore, a client will pay a total of $2,450 for an Attorney's 15 hours of work.

<h3>16) Solve: </h3>

Given the water level on a Lake of 165 inches after a rainstorm, and the water level's receding rate of 3 inches per day:

We can establish the following linear equation to model this given problem:

L = -3d + 165

Where:

L = represents the water level of the Lake

d = number of days that the water level recedes

In order to find the number of days it will take before the water level recedes to 84 inches:

Substitute the value of L = 84 into the equation:

L = -3d + 165

84 = -3d + 165

Subtract 165 from both sides:

84 - 165 = 3d + 165 - 165

-27 = -3d

Divide both sides by  -3:

\frac{-27}{-3} = \frac{-3d}{-3}

9 = d

Therefore, it will take 9 days for the water level to be at 84 inches.

7 0
3 years ago
A family pays $19 each month for Internet access. Next month, the cost will increase by 5% because of an equlpment fee. After th
Elena L [17]

Answer:yk i’m looking for the answer too, i can’t find it

Step-by-step explanation:

7 0
3 years ago
Pls help me with this
alexgriva [62]

Answer:

x = 1.5

Step-by-step explanation:

Given

\frac{x}{2} \geq 0.75

\frac{x}{2} < 2.5

Required

Find the value of x.

First, the inequalities need to be rewritten and merged;

if \frac{x}{2} \geq 0.75, then

0.75 \leq \frac{x}{2}

Multiply both sides by 2

2 * 0.75 \leq \frac{x}{2} * 2

1.5 \leq x

Similarly;

\frac{x}{2} < 2.5

Multiply both sides by 2

2 * \frac{x}{2} < 2.5 * 2

x < 5

Merging these results together; to give

1.5 \leq x < 5

This means that the range of values of x is from 1.5 to 4.9999....

From the question, x is the smallest rational number; from the range above (1.5 \leq x < 5), the minimum value of x is 1.5 and 1.5 is a rational number;

Hence, x  = 1.5

4 0
2 years ago
Other questions:
  • In how many ways can a committee consisting of 4 faculty members and 5 students be formed if there are 11 faculty members and 15
    6·1 answer
  • What is the algebraic expression for this; the value in cents of an unknown number of dimes
    15·1 answer
  • ​(5 – 6i) – (3 – 2i) solve the equation.
    15·1 answer
  • 1) A TV is on sale for 20% off. If the sale price is $700, what is the original
    12·1 answer
  • PLZZZ HELP FAST What is the product of Three-fourths and Negative StartFraction 6 over 7 EndFraction? Negative StartFraction 7 o
    9·1 answer
  • How do i solve y=3bx−7x for x?
    11·2 answers
  • An object’s height is measured in centimeters and in inches. Two rulers, one showing inches, the other showing centimeters. The
    8·1 answer
  • Solve -7 2/3+(-5 1/2)+8 3/4=
    12·2 answers
  • When Zoe was six-year-old Lulu is twice her age Zoe is 10 years old now how old is Lulu
    10·1 answer
  • Please help me i will give u the crown
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!