what math do u do in 8th grade? as in algebra, geometry

Answers

Answer 1

The math curriculum is constantly evolving but when I was in 8th grade I took what is called Integrated Math 1 which would be algebra and geometry both combined, rn I'm a senior so that was a few years ago. It also depends on the school district I would assume. I live in California so, my school district is the San Diego Unified School District.

Related Questions

In general, the air temperature decreases 12 degrees Fahrenheit for every 4,000 feet increase altitude. If a hiker climbs 3,000 feet, by how much can she expect the temperature to increase?

Answers

9 degrees

because 12/4 = 3 degrees (per 1000 feet)
3 x 3 = 9 degrees total (in 3000 feet)

hope this helps

Write -7 - (-4) as an addition problem. Then simplify the expression.

Answers

-7 + 4

if you subtract a negative it turns it into a positive, so just take away the negative and turn the sub into an addition sign

The length of a rectangle is 4 inches more than its width the perimeter is 96 inches what is the length and width of the rectangle

Answers

The length is 20 and the width is 16. You have to do 96/4 (for four sides) you get 24 then you have to do 24-8 (for 4 inches more than the width for two sides)

1/3(12-24v)=-2(4v-2)

Solve the equation for 15 points PLEASE HELP!!!!!!!

Answers

Relax! This isn't so hard once you grasp it. In an equation like this, what's the first step? Distributive property, right? Multiply 1/3 by 12, then by -24 v, and apply the same process to the other side. This leaves you with 4-8v=-8v+4. Now you need to isolate that variable. You have the same variable on both sides, so you do inverse of subtraction on either one. I'm going to choose the one on the right. You add 8v to both sides, leaving you with 4-v=4. Subtract 4 from the first side, and get -v=4. You aren't solving for -v, so flip the sign, and your final answer is v=-4. Make sense? (Let me know if it doesn't--I'm always willing to walk you through it some other way. I plugged it back in, and I am 100% sure that this answer is correct.)

during the summer you work 30 hours per week at a gas station and earned $8.75 per hour. You also work as a landscaper for $11 per hour and your work as many hours as you want. You want to earn a total of $400 per week. How many hours mostly work as a landscaper?

Answers

a very minimum of 12.5 because 30x8.75= 262.5 and when you subtract that from 400 you get 137.5 and that divided by 11 equals 12.5

Final answer:

To earn a total of $400 per week, considering you already earn $262.50 working 30 hours a week at a gas station, you need to make up the rest ($137.50) working as a landscaper. This equates to approximately 12.5 hours of work a week at an hourly rate of $11.

Explanation:

The nature of the question is mathematical, specifically relating to linear equations. Initially, we know you're earning $8.75 per hour from your job at the gas station, working 30 hours a week, which gives you a total of $8.75 * 30 = $262.50 per week. Your goal is to earn $400 in total per week. Therefore, your earnings from the landscaping job need to make up the difference, which is $400 - $262.50 = $137.50.

Next, to find out how many hours you need to work as a landscaper, we divide that by the landscaper's hourly wage of $11, so $137.50 / $11 = 12.5 hours approximately. Hence to meet your target of $400 per week, you need to work about 12.5 hours as a landscaper, in addition to your 30 hours at the gas station each week.

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multiply (2.75×10−8)⋅(4.6×10−3)

Answers

2.75 times 10 is 27.5 minus 8 is 19.3.
4.6 times 10 is 46 minus 3 is 43

Then 19.3 times 43 equals 829.9.
so your answer is 829.9.

2.75 * 10 - 8=19.5
4.6 *10 - 3= 43
19.5 * 43=838.5
Good Luck, hope this helps

find the range of f(x)=-3x+1 if the domain is (x=-2,7(

Answers

To find the range of this function, simply plug each of the end values into the original equation. In this case, with x of -2, the function becomes f(x) = 6+1 or 7, and with x of 7, the function becomes f(x) = -21+1 or -20. As such, the range of the function is -21 <= f(x) <= 7.

Can anyone help me with this question?

Answers

Since a cube is essentially 6 squares, and the base, length, and height is ∛(volume)=∛(27)=3 due to that a cube is base*width*height, with each being the same. Each square is 3*3=9 square centimeters. 6 equal squares are 9*6=54 square centimeters. which is 1 cube. 54*2=108, 54*3=162, and we have 6*27=162 square inches, meaning that we have 3 cubes!

What is :
1)9.4 divided by 47
2)2.583 divided by 9
3)33.8 divided by 26
4) 37.8 divided by 18
Brain teasers answer in the comments ( I'm bored just do it )

Answers

1) 9.4 divided by 47 = 0.2

2) 2.583 divided by 9 = 0.827

3) 33.8 divided by 26 = 1.3

4) 37.8 divided by 18 = 2.1

Answer:

since u don't need the answers imma just leave this here, thnx for the points :)

Step-by-step explanation:

Give an example of the associative property of multiplication

Answers

(6x7)x5 = 6x(7x5), hope this helps

2+7+5=2+7+5
(2+7)+5=2+(7+5)
(9)+5=2+(12)
14=14

In order from least to greatest what is 19% 19/20 1.9% 1.9 x 10 to the power of 5

Answers

1.9%, 19%, 19/20, 1.9x10

Number 46 please help

Answers

2/3 = 8/12

5 1/4 = 21/4 = 63/12

63 divide by 8 is 7.875

7 batches should be your answer

hope this helps

twenty less than 8 times a number is the same as 15 more than the number in equation form

Answers

8x-20=15+x

7x=35 subtract x from left side and add 20 to right side
x=5 divide

Can you please help me!!

Answers

A is more because 1/4 is equal to 2/8 and 2/8 is less than 7/8 so you would have more than a minute
B is three minutes 2/8 goes into 7/8 three times

Jim spends 3 1/2 days a month away from home if he does this for 6 1/2 months how many days would Jim be away from home

Answers

Final answer:

Jim would be away from home for approximately 23 days.

Explanation:

To find out how many days Jim would be away from home, we need to multiply the number of days he spends away from home in a month by the number of months he does this for:

3 1/2 days x 6 1/2 months = (7/2) x (13/2) = 91/4 = 22.75 days

Since we can't have a fraction of a day, we round up the decimal to the nearest whole number. So, Jim would be away from home for approximately 23 days.

turn 129/3930 into decimal

Answers

To find the decimal, all you need to do is take the number on top and divide it by the one in the bottom. 129/3930=0.03

Divide 129 by 3930
Which is 0.03282442748
Then round it to .033

Hope I helped :)

Explain how to simplify the fraction 12 over 36

Answers

The fraction 12/36
Is quite simple first find out what can go into 12 and 36
The factors that can go into 12 and 36 is 12.
12÷12=1
36÷12=3
So the final answer will be 1/3

The fraction is, 12/36 is the fraction 12 over 36.

What is fraction?

A fraction represents a part of a whole or, more generally, any number of equal parts. When spoken in everyday English, a fraction describes how many parts of a certain size there are, for example, one-half, eight-fifths, three-quarters.

here, we have,

the fraction 12 over 36

Is quite simple first find out what can go into 12 and 36

The factors that can go into 12 and 36 is 12.

12÷12=1

36÷12=3

So the final answer will be 1/3.

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Divide. Round to the nearest tenth if necessary:
39.39 divided by 3

Answers

39.39/3 = 13.13

rounded to the nearest tenth is: 13.1

hope this helps

Or... you can use a calculator. But, I can understand if you are not allowed to use a calculator.

39.39 / 3 = 13.13

You can round that down to: 13.1

The grass in the outfield of a professional baseball stadium is trimmed to a height of 5.08 * 10^-5 miles. Which unit of measurement is most appropriate to measure in height?

Answers

The height is given as 5.05 x 10⁻⁵ miles.

Because this is in English units, we should reduce the height to inches.

Note that
1 mile = 5280 ft
= 5280*12 = 63360 in

Therefore the height is
(5.08 x 10⁻⁵ miles)*(63360 in/mile) = 3.219 in

Answer:
3.2 in (nearest tenth)
The given measurement is in English units, so the conversion stays in English units.

what is the area of the science lab table that is 60 by 48 inches in feet?

Answers

2880 is the area in inches and 240 is the area in feet.

Most tables are rectangular so we can use the rectangle area formula:
[tex]A = L * W[/tex]

A = 60 * 48
A = 2880

Convert inches to feet.

2880 inches = 240 feet

So, the answer is 240 square feet.

Above 1700 feet to 2500 feet write compound inequality

Answers

1700>X<2500

Hope this helps! :)

1700 < x ≥ 2500

above 1700 means it cant be 1700, but as long as it's greater than 1700, the inequality works. to 2500 feet means it can be 2500, but it can't be greater than 2500.

A rectangular patio has a length of 12 1/2 feet and an area of 103 1/8 square feet. What is the width of the patio?

Answers

Area= length x width

103 1/8 = 12 1/2 x width

width = (103 1/8) ÷ (12 1/2)
width = 8.25 or 8 1/4

Answer:

The answer is b. 8 1/4 feet.

In the seventh grade, the ratio of girls to boys is 7:5. If there are 21 girls in the seventh grade, how many boys are there?

Answers

There is 15 boys in the Seventh Grade

So we are given the fraction ratio...

7 girls

---------

5 boys

if we make the fraction

21 girls

----------

x boys

equal each other, we can cross multiply and find x.

Cross multiplying means to multiply 7 times x and 21 by 5.

then we set up a little equation

7x = (21)(5) First lets solve what 21 times 5 is

7x = 105 Now we have to divide both sides by 7 to get x alone.

÷7 = ÷7 On the left side of the equation the 7 cancels and we solve on the right.

x = 15

So we know that when we have 21 girls in the 7th grade classroom we also have 15 boys.

Good Luck! :)

4 7\12 + 2 3\4 +7 5\12

Answers

4 + 2 + 7 = 13

7/12 + 3/4 + 5/12 = 7/12 + 9/12 + 5/12 = 21/12 = 1 9/12 = 1 3/4

13 + 1 3/4 =

14 3/4 <===

Answer: 6/12 in other words 1/2

hope thats correct

What is the answer of 3·(2x+5)−23=10?

Answers

6x - 8 = 10
+ 8 +8
6x = 18
x = 3

It becomes: 6x+15-23=10

We send 23 to the other side: 6x+15=10+23

Then it becomes: 6x+15=33

Then we send 15 to the other side: 6x=33-15 》6x=18

Divide the each side to 6: x=3

The answer is 3.

find the perimeter of the polygon with the given vertices

G(2,4), H(2,-3), J(-2,-3), K(-2,4)

Answers

I graphed these vertices myself in the attached photo, and it turned out to be a rectangle; With the thought that you perhaps made a typo and meant rectangle instead of polygon I continued on and found the perimeter of the rectangle.

The formula for finding the perimeter of a rectangle is P = 2(l+w).

I counted the units of the long side (K & J) to get the length, which is 7.

Next, I counted the units between J & H to find the width which is 4. Now we're ready to use the formula.

First I will add the length plus the width, 7 + 4 = 11.

Then I will multiply 2 x 11 to get a product of 22.

P = 22. :D

Which statement is true about the graphed function?

F(x) < 0 over the intervals (-∞, -0.7) and (0.76, 2.5).
F(x) > 0 over the intervals (-∞, -0.7) and (0.76, 2.5).
F(x) < 0 over the intervals (-0.7, 0.76) and (2.5, ∞).
F(x) > 0 over the intervals (-0.7, 0.76) and (0.76, ∞).

Answers

Choice A) True. The f(x) portion is below the x axis on the interval (-infinity, -0.7) and on the interval (0.76, 2.5)

Choice B) False. This is a complete contradiction of choice A.

Choice C) False. The portion of f(x) on the interval (-0.7, 0.76) is above the x axis.

Choice D) False. The portion of f(x) is above the x axis on the interval (-0.7,0.76); however, f(x) is below the x axis on the interval (0.76, 2.5). See choice A.

---------------------------------------

In summary, the final answer is choice A

Answer: A. F(x) < 0 over the intervals (-∞, -0.7) and (0.76, 2.5).

20 Points!!!

When you add a negative and a positive the answer is: Neg/Pos

When you add numbers with with the same sign the answer is: Neg/Pos

When you subtract a negative and a positive the answer is: Neg/Pos

When you subtract numbers with the same sign, the answer is: Neg/Pos

Answers

All right, All you have to remember is a triangle. In 2 angles of the triangle, add a negative sign. In the last side, add a positive. All you have to do now is cover up the 2 sides in your equation, and the uncovered one is your answer. For example, -1 times -1=??? So you cover up the 2 negative sides, and you are left with a positive. However, this only works with multiplication and division. When it comes to subtraction and addition, the answer varies with the number. Hope this helps.

When you add a negative and positive the answer is positive.
When you add numbers with the same sign it is positive
When you subtract numbers with the same sign it is negative

A recipe asks for 2 2/3 cups of raisins.

How many cups of raisins are needed to make 1/2 of a recipe?

Express the answer in simplest form.

Answers

you would have 1 1/3 cups

The number of cups of raisins needed to make 1/2 of the recipe is equal to [tex]1\frac{1}{3}[/tex] cups of raisins.

What is the unitary method ?

The unitary method is a method in which you find the value of one unit and then the value of required no. of units.

It is given that a full recipe asks for [tex]2\frac{2}{3}[/tex] cups of raisins.

We have to find the number of cups of raisins needed to make 1/2 of the recipe.

1 full recipe needs = [tex]2\frac{2}{3}[/tex] cups of raisins.

So , the number of cups of raisins needed to make 1/2 of the recipe can be calculated by :

1/2 of recipe needs = [tex]2\frac{2}{3}[/tex] × [tex]\frac{1}{2}[/tex] cups of raisins

1/2 of the recipe needs :

= [tex]\frac{8}{3}[/tex] × [tex]\frac{1}{2}[/tex] cups of raisins

= [tex]\frac{4}{3}[/tex]

or [tex]1\frac{1}{3}[/tex] cups of raisins

Therefore , the number of cups of raisins needed to make 1/2 of the recipe is equal to [tex]1\frac{1}{3}[/tex] cups of raisins.

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A brick has a mass of 100g and a volume of 25cm3. what is the density of the brick

Answers

Final answer:

The density of the brick, calculated by dividing its mass of 100g by its volume of 25cm3, is 4 g/cm³.

Explanation:

The density of a substance can be calculated using the formula density = mass/volume. In this case, the brick has a mass of 100g and a volume of 25cm3. Therefore, its density would be 100g / 25cm3 = 4 g/cm³. This means that the density of the brick is 4 grams per cubic centimeter.

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