What is the value of the expression? 8.5 - (-4.8) - 7

Answers

Answer 1

Answer:

6.3

Step-by-step explanation:

8.5 - (-4.8)

Let's focus on - (-4.8)

if a negative number is subtracted, it reverses itself

In other words, if a negative number is being subtracted, it is the same as being added as a positive number

So we change the equation to

8.5 + 4.8 = 13.3

Now we subtract 7 from 13.3

Since positive 7 is being subtracted, the rule for -4.8 does not apply to it

13.3 - 7 = 6.3


Related Questions

Your teacher is giving you a test that has 30 questions and is worth 200 points. Some questions are worth 5 points and some are worth 10 points. How many of each question are on the test?

Answers

Answer:

20 5-point questions and 10 10-point questions

Step-by-step explanation:

Maddie swims the hundred meter freestyle in 30 seconds what is her average speed in meters per minute​

Answers

Answer: 200 meters per minute

Explanation: we know that she can run 100 meters per 30 seconds. the question is asking in terms of minutes, however. we have to convert the seconds into minutes. How many minutes is 30 seconds? well, 60 seconds are in a minute so 30 seconds are in half a minute. 30 seconds = .5 minutes.

Now, we have to find how many meters she runs per minute. this means how many meters she runs in one minute. we create a proportion:

100 meters/ .5 minutes = x meters / 1 minute

we cross multiply to get 100 = .5x

then, we simplify by dividing each side by .5 which equals

200=x

i need help i don’t know how to solve this:D
10x - 5x + 2

Answers

Answer:

5x + 2

Explanation:

10x - 5x + 2Add Similar Elements

10x - 5x = 5x

5x + 2

- PNW

What is the equivalent expression for 8w - 16?

Answers

Answer:

8(w-2)

this is equivlent

The equivalent expression for (8w - 16) = 8(w - 2)

What is an Expression?

An expression in math is a sentence with a minimum of two numbers or variables and at least one math operation.

Given an Expression = (8w - 16)

(8w - 16)  = 8(w - 2)

Hence, the equivalent expression for (8w - 16) = 8(w - 2)

For more references on Expression, click;

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a
\large 140\frac{1}{2}

b
\large 140\frac{1}{3}

c
\large 141

d
\large 140\frac{3}{4}

Answers

i think the correct answer is b

Ariel bought 8 balloons for $3.20. Mrs.Torres spent $38.40 on balloons at the same store. How many balloons did Mrs.Torres buy?
A.15
B.96
C.40
D.64

Answers

Answer:

96 because 3.20 divided by 8 is 0.4 and 0.4 times 96 is 38.4

Can someone help me !!!

Answers

Answer: 35, 63

Step-by-step explanation: sorry if wrong

a=35 b=63 i think i’m not sure

can someone help me with these 3 questions please!!


1. Use greatest common factor and the distributive property to write an equivalent

expression in factored form.

2x + 8y


2. Use greatest common factor and the distributive property to write an equivalent

expression in factored form.

13ab + 15ab


3. Use greatest common factor and the distributive property to write an equivalent

expression in factored form.

20g + 24h

Answers

Answer:

..

Step-by-step explanation:

inverse of g(x) = x^2+1

Answers

To find the inverse, interchange the variables and solve for y

G^-1 (x) = square root x - 1, - square root x-1

I WILL GOVE BRAINLIEST!!!

Answers

Answer:

First of all make me as branlist answer then I will surely send it

the taxi fare in a city is as follows: for the first kilometre, the fare is rupee 8 and for the subsequent distance it is rupee 5 per km. taking the distance covered as x km and total fare as rupee y, write a linear equation for this information, and draw its graph

Answers

Answer:

The linear equation is Y=5x+8 where x>0

(you can input this into the Desmos graphing calculator to see the graph if you like!)

Step-by-step explanation:

To get the answer is fairly straight forward. If we know that distance covered is x in the equation and we know that a linear equation follows the template Y=mX+b where m is slope and b is the y-intercept. The first step is to fill in what we know. That would look as such Y=_X+_. We can then attempt to fill in the blanks for m and b. Because we know that it is 5 rupees extra per subsequent kilometre we can put 5 as the multiplier for x and there is our m or slope. We now have Y=5x+_. Now for b. B in this case is quite simple as is showing us where the start of the graph is. It is stated that there is a flat fee of 8 rupees, so the total can never be less than 8. Because b is simply where the line intercepts the y axis, and we want it to intercept at 8, we can just put a plus 8. And there you have it Y=5x+8. One important note is that the graph when drawn should be a ray extending from point (0,8). This is because we want to eliminate all of the areas on the plane that would make the fare negative, as we could not have a negative cab fare. This is as simple as plotting the line starting from point (0,8) on the y axis. Happy to help!  

Which solid is made from only quadrilaterals?
A) cube
B) triangular prism
C) square pyramid
D) cylinder

Answers

The solid made from only quadrilaterals is a) cube

Answer:

A) Cube

Explanation:

Quadrilateral just means "four sides"

Examples: square, rhombus, parallelogram, rectangle.

Hope that helps

10* 4/25 as a fraction in simplest form

Answers

Answer: I think it would still be 4/25. If not I am really sorry.

Step-by-step explanation:

Patrick drives from P to Q at an average speed of 40 mph. His drive back from Q to P is at an average
speed of 45 mph and takes two minutes less.
How far, in miles, is it from P to Q?

Answers

Answer:

The answer is 12

Answer:

12

Step-by-step explanation:

Simple

-n+2=7
Can sum one tell me this answer

Answers

Answer:

n= -5

Step-by-step explanation:

Answer:

Step-by-step explanation:

-n is -5

pls mark brainliest

Simplify:
4
(1934)
O
A.
Xy3216
B.
x93,8
O c. x7,12,16
D.
2778

Answers

D would be the answe to your question

Richard learned a total of 30 appetizer recipes over the course of 6 weeks of culinary school. After 7 weeks of culinary school, how many total appetizer recipes will Richard know? Assume the relationship is directly proportional.

Answers

30/6=5
He learns 5 recipes a weeks so 7x5=35
Richard will know 35 recipes in all

Charles has 82 stamps altogether. He has 24 more local stamps than foreign stamps.
How many local stamps does he have?

Answers

Answer:

82-24=48

Step-by-step explanation:

3112 용 니
3 1/2 divided by 4

Answers

Answer:

0.875

Step-by-step explanation: hoped i helped ^-^

HELP! WILL MARK BRAINLIEST!!!!

Answers

Answer:

its c

Step-by-step explanation:

im not good at scatter plots.​

Answers

Answer: point B

Step-by-step explanation: it does not follow along with most of the other dots

5. Priya can bike 150 meters in 20 seconds. At

this rate, how long would it take her to bike

3,000 meters?

Answers

Answer:

400 seconds

Step-by-step explanation:

Divide 3000/150 = 20

20 x 20 seconds = 400 seconds

Based on the scatterplot, which is the best prediction
of the number of gallons of water used by this
business when the cost of water is $180?

Answers

Answer:

90,000

Step-by-step explanation:

As per the given scatter plot, for the cost of $180, the number of gallons of water used is 90,000.

What is a scatter plot?

The association between two numerical variables measured for the same individuals is displayed in a scatterplot. One variable's values are displayed on the horizontal axis, and the other variable's values are displayed on the vertical axis.

Here,
According to the question, the maximum limit shown on the scatterplot is $180 for 90 units on the scatterplot,
Where horizontal units are represented as the scale of 1 unit = 1000 units.
So for the maximum.
For the cost of $180 the gallons of water used is 90×1000.

Thus, as per the given scatter plot, for the cost of $180, the number of gallons of water used is 90,000.

Learn more about scatter plots here:

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y=-11x+5. help what is the slope

Answers

Answer:

this is the slope:

Step-by-step explanation:

m=-11

it says I have 4 cups of white paint for 3 cups of red paint? what is the equivalent for 1 cup of red paint in white paint?​

Answers

Answer:

1 cup of red paint = 4/3 or 1  1/3 cups of white paint

Your parents want to be generous to you. They have decided to give you money every week for 1 year. They have 2 options from which you can choose.
Which option would you rather have?
Option A: Every week for one year, your parents will give you $50.
Option B: Every week for one year, your parents will double the amount of money that you have in a special bank account. In week one, they will give you $0.01.
Equation A:
Equation B:

Answers

Answer:

B

Step-by-step explanation:

1: they didnt mention that its just for a year.

2: the money source cant just be from them.

12x -20=n (3x-5)

I need help I don’t get it please help me.

Answers

Answer:

The value of n = 4 and  

The value of x = [tex]\frac{5}{3}[/tex]

Step-by-step explanation:

Method I:

As given, 12x -20=n (3x-5)      .........(1)

Firstly , take 12x - 20

As 12x - 20 can be written as 4(3x - 5)

∴ equation (1) becomes

4(3x - 5) = n (3x-5)

Divide the equation by (3x-5) , we get

4 = n

Method II:

As given, 12x -20=n (3x-5)

⇒12x - 20 = 3nx - 5n

⇒12x - 3nx = 20 - 5n

⇒3x(4 - n) = 5( 4 - n)

Divide the equation by (4-n) , we get

3x = 5

⇒ x = [tex]\frac{5}{3}[/tex]

∴ we get

n = 4 and  x = [tex]\frac{5}{3}[/tex]

Now, check that value of n and x satisfies the equation or not

12([tex]\frac{5}{3}[/tex]) - 20 = 4( 3([tex]\frac{5}{3}[/tex]) - 5)

⇒4(5) - 20 = 4(5 - 5)

⇒20 - 20 = 4(0)

⇒ 0 = 0

Hence , we get

The values of x and n satisfies the equation

so, we get

n = 4 and  x = [tex]\frac{5}{3}[/tex]

Find the greatest common factor​ (GCF) for each pair of numbers.
9 and 33

Answers

Answer:

3

Step-by-step explanation:

Write the factors for each term

9 = 1,3,9

33 = 1,3,11,33

The greatest common factor is 3

3 is the GCF of 9 and 33

A pencil pouch has 12 pencils and 30 led pencils, What is the ratio of
pencils to led pencils?

Answers

Answer: 12:30

Step-by-step explanation: Trust me. I got 100.

Answer:

6::15

Step-by-step explanation:

What is the equivalent division statement to 63 x 1/9

Answers

Answer:

7

Step-by-step explanation:

63x1/9

Hope that helps

Have a good day

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