Mathematics Middle School

EXAM I FORGOT THE SECOND PART

b) x -7 = 4 + 10


d) 70 = 7m


f) 12 – c = 8


h) 2y + 3y = 4 – 6 – 13



j) 8 = m/4


l) f + 4 = –6

Answers

Answer 1

Answer:

b)21

d) 10

f) 4

h) -3

j) 32

f) -10

Step-by-step explanation:

b) x -7 = 4 + 10

x = 14 + 7

x = 21

d) 70 = 7m

70 ÷ 7 = 70m ÷ 70

10 = m

f) 12 - c = 8

12 - 8 = c

4 = c

h) 2y + 3y = 4 - 6 - 13

5y = -15

5y ÷ 5 = -15 ÷ 5

y = -3

j) 8 = m/4

8 × 4 = m

32 = m

I) f + 4 = -6

f = -6 - 4

f = -10

Answer 2

Answer:

b .21

d.m= 10

f.c=

h.-3

j.32

l.-10

Step-by-step explanation:ok so this easy enough just take a deep breath

b. x -7 = 4 + 10

= x = 4+10+7 => 21

d. 70 = 7m

=> m = 70/7. =>M= 10

f. 12 – c = 8

=> c = 12-8 => c=4

h. 2y + 3y = 4 – 6 – 13

= > 2y +3y = -15

=> 5y = -15

= > y=-15/5

=> y= -3

j. 8 = m/4

= > m = 8 x 4

=>m= 32

l) f + 4 = –6

= f = -6-4 => -10

Related Questions

Christina's town had an election last month. 189 people voted in the election and 36 did not vote. What percentage of the people voted?

Answers

Answer:

84%

Step-by-step explanation:

in photo

225×0.84

Answer:

Step-by-step explanation:

The percentage is the part/whole x 100 so we need to find the whole, which is 189+36=225 and the percentage is the amount of people who voted which is 189 and the part/whole x 100 is 189/225 = 0.84 0.84x100=84=84%

3lb. peppers 1 lb. onions 2 lb. broccoli 1 lb. mushrooms 1 bag of white rice Price Per Pound Total Price

Answers

Answer: 3+1+2+1= 7lb=$7

I believe this is the answer you were looking for.

3+1+2+1+1=7lb=$7
Is this the answer your looking for

Marcus has a 48-ounce soda. He drinks 15 ounces. What is the percentage of ounces Marcus has left from his soda? Round your answer to the nearest tenth.
A) 68.8
B) 45.6
C) 86.8
D) 34.9

Answers

Answer: A) 68.8%

Step-by-step explanation:

48-15=33

He has 33 oz of soda left. Divide 33/48 and then multiply by 100 to get a percentage. you get 68.75% but you have to round up the the nearest tenth so it will be 68.8%

answer:A

48-15=33

therefore he has 33 ounces left. so to work out the percentage you do the amount left divided by the total x100

33/48 x100 = 68.75

Because the answer wants the result rounded it will round up the the nearest 10th the be 68.8 which is A

A fruit juice recipe calls for 2 parts orange juice and 8 parts pineapple juice. Which proportion can be used to find the amount of orange juice, j, that is needed to add to 18 L of pineapple juice?

2 over 8 equals j over 18
8 over 2 equals j over 18
8 over j equals 2 over 18
16 over 18 equals j over 100

Answers

Step-by-step explanation:

16 over 18 equals over 100

4.5 L of orange juice is needed to add to 18 L of pineapple juice to make the fruit juice recipe with the ratio of 2 parts orange juice to 8 parts pineapple juice. The correct option is B.

What is an expression?

An expression is a grouping of one or more mathematical or logical operators, operands (values, variables, or other expressions), and brackets in mathematics and computer programming that denote a computation that can be evaluated to generate a value.

The correct proportion that can be used to find the amount of orange juice, j, that is needed to add to 18 L of pineapple juice is:

2/8 = j/18

This proportion is based on the ratio of 2 parts orange juice to 8 parts pineapple juice in the recipe. We can use this proportion to find the amount of orange juice, j, that is needed to add to 18 L of pineapple juice by cross-multiplying:

2/8 = j/18

2 × 18 = 8 × j

36 = 8j

j = 4.5

Therefore, 4.5 L of orange juice is needed to add to 18 L of pineapple juice to make the fruit juice recipe with the ratio of 2 parts orange juice to 8 parts pineapple juice.

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Jayda takes 5 hours to deliver 400 newspapers on her paper route. What is the rate per hour at which she delivers the newspapers?

Answers

Answer: 80 papers an hour

Step-by-step explanation:

100/5=20

80*5 is 80

Answer:

80 newspapers per hour

Step-by-step explanation:

Find out how many newspapers she delivers in one hour.

Do this by dividing how many newspapers she delivered on her route by the total amount of time: Total papers/total hours.

Then substitute: 400/5

This leads to the answer: 400/5=80

I'm doing systems of equations and inequality, solving by graphing, and was wondering how to do this problem. Thank you!

Answers

Answer:

You need to graph the two lines. The solution is the point at which they intersect.

Step-by-step explanation:

To make things easier, first, you turn the first equation into slope-intercept form:

y = 2x + 5

Also, I didn't provide the answer because you just asked how to do it, but I can help with that if you need.

graph the 2 equations on the graph

6 divided by 2 (1+2) = what?

Answers

Answer:

1

Step-by-step explanation:

[tex]\frac{6}{2(1+2)} \\\frac{6}{2(3)} \\\frac{6}{6} \\= 1[/tex]

6by 2×1+2×2

6by 2+4

6by 6

=1ans

-2m^3 n^2t to the power of 4

Answers

answer : 2^4m^12/n^8

here it is in picture form to help.

explanation:

Negative number raised to an even power is positive

For example let's look at (-7)6 , where (-7) , a negative number, is raised to 6 , an even exponent :

(-7)6 can be written as (-7)•(-7)•(-7)•(-7)•(-7)•(-7)

Now, using the rule that says minus times minus is plus, (-7)6 can be written as (49)•(49)•(49) which in turn can be written as (7)•(7)•(7)•(7)•(7)•(7) or 76 which is positive.

We proved that (-7)6 is equal to (7)6 which is a positive number

Using the same arguments as above, replacing (-7) by any negative number, and replacing the exponent 6 by any even exponent, we proved which had to be proved

2.2 m3 raised to the 4 th power = m( 3 * 4 ) = m12

2.3 n2 raised to the 4 th power = n( 2 * 4 ) = n8

Find the sum of the interior angles for an octagon.

1,080°
1,260°
1,440°
1,620°

Answers

[tex]\underset{in~degrees}{\textit{sum of all interior angles}}\\\\ S = 180(n-2) ~~ \begin{cases} n=\stackrel{number~of}{sides}\\[-0.5em] \hrulefill\\ n=\stackrel{octagon}{8} \end{cases} \implies S=180(8-2)\implies S=1080[/tex]

What the person said above me

Find the slope from the graph.

-1/2


-4/3


3/4


-3/4

Answers

Answer: 3/4

Step-by-step explanation:

To find the slope from the graph, we need to look at the rise and run of the line. The slope is the ratio of the vertical change (rise) to the horizontal change (run).

Let's analyze the given options:

-1/2: This means that for every 2 units the line moves horizontally, it moves down 1 unit vertically.

-4/3: This means that for every 3 units the line moves horizontally, it moves down 4 units vertically.

3/4: This means that for every 4 units the line moves horizontally, it moves up 3 units vertically.

-3/4: This means that for every 4 units the line moves horizontally, it moves down 3 units vertically.

So, from the given options, the slope is 3/4. This indicates that for every 4 units the line moves horizontally, it moves up 3 units vertically.

Remember, the slope of a line is a measure of how steep the line is. It tells us how much the line is rising or falling as we move along the x-axis.

Use the slope formula to solve this question:

The slope formula is as followed:

y₂ - y₁

x₂ - x₁

where (x₁, y₁) and (x₂, y₂) are two sets of coordinates

Pick the two points on the line:

(0, 5) (4, 2)

Now, plug them into the equation and solve:

y₂ - y₁

x₂ - x₁

[tex]\frac{2-5}{4-0}[/tex] = [tex]\frac{-3}{4}[/tex]

The slope of the line is -3/4

What is the broadcast frequency of FM Radio "Tokyo Disneyland Electrical Parade: DreamLights"?​

Answers

Starts at 88.0 MHz. Ends at 108.0 MHz.
It starts at 88.0 MHZ. Then it ends at 108.0 MHZ.

Need answer as soon as possible please.

Answers

Y=-9
The y’s on both points are the same, so when you do
y2-y1 -9(- -9) 0
———= ————-=
x2-x1
Whew ever there is a 0 on the top, the slope will always be 0
y=-9


cuz



your welcommeee

WILL GIVE BRAINLIEST IF CORRECT! Evaluate. (7/12 + 1/3) - (1/2 + 2/8) BTW this question is from k12.

Answers

Answer: 1/6 I hope this helps you!!!

Here is your answer

A 24-sided regular polygon has an angle measure represented as 5g°.

Determine the value of g.

g = 33
g = 165
g = 36
g = 180

Answers

[tex]\underset{in~degrees}{\textit{sum of all interior angles}}\\\\ n\theta = 180(n-2) ~~ \begin{cases} n=\stackrel{number~of}{sides}\\ \theta = \stackrel{degrees}{angle}\\[-0.5em] \hrulefill\\ n= 24\\ \theta = 5g \end{cases}\implies (24)(5g)=180(24~~ - ~~2) \\\\\\ 120g=180(22)\implies g=\cfrac{180(22)}{120}\implies {\Large \begin{array}{llll} g=33 \end{array}}[/tex]

The sum of all interior angles inside an "n" number of sides polygon is 180(n - 2) thus the measure of g will be 33 so option (A) is correct.

What is an angle?

The angle is the measurement of the angular distance for example for linear motion we have a meter inch but for angular rotation, we don't have the measurement so the angle is useful to measure the angular rotation.

The sum of all interior angles inside an "n" number of sides polygon is 180(n - 2).

Given that a polygon with a number of sides is 24.

And the measure of one angle is 5g.

Sum of all angles = 24(5g).

24(5g) = 180(n - 2)

120g = 180(24 - 2)

g = (18/12)(22)

g = 33

Hence "The sum of all interior angles inside an "n" number of sides polygon is 180(n - 2) thus the measure of g will be 33".

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add a symbol to compare the two values
A. 18 _ |-28| (ABSOLUTE VALUE NUMBER)

Answers

Answer: <

Step-by-step explanation: as it absolute we disregard the negative sign

The answer is: <
because every absolute value number is positive so |28| = 28 and also |-28| = 28
so 18 < |-28| becomes 18 < 28

ok i did do the description already but im not sure if I'm correct. i have a unit test tmrw

For 0-5, I said "He steadily walked at the same rate"

5-6,"He walked faster for an hour"

6-8, "His walking stayed constant"

8-10 "He walked steadily at a continuous rate"


pLEASEE CORRECT ME IF IM WRONG

Answers

You are correct that’s what I would have wrote anyways
You did it right but I have to type so much more I guess lol you did it rightttttttt :P

please help...................................

Answers

Add, subtract and addition

Answer:

1. ADD

2. SUBTRACT

3.ADDITION

Fredrick and Kate have 17 1/3 cups of flour. They want to make loaves of banana bread for a bake sale. Fredrick has a recipe that calls for 1 5/8 cups of flour
Kate has a recipe that calls for 1 3/4 cups of flour. Select the statements that are true.

Answers

Answer:

Fredrick's recipe will make 10 whole loaves & There will be less flour left over if Fredricks recipe is used

Step-by-step explanation:

Fredrick's recipe

17 1/3 ÷ 1 5/8 = 10 2/3

Kate's recipe

17 1/3 ÷ 1 3/4 = 9 19/21

So Fredrick's recipe will make 10 whole loaves

9 19/21 is less than 10 2/3 so there will be less flour left over if Fredricks recipe is used

Fredrick’s recipe will make 10 loaves and if Fredricks recipe is used there will be less flour left over

The bill for a group of people at a steakhouse was $275.00 before the tip was added. The group wants to add a 22% tip. What will the total bill be, including the tip?

Answers

Answer: $335.50

Step-by-step explanation:

22 percent of 275 is 60.5

add 60.5 to 275 and you get $335.50

Jorge says there are 198 inches in 5.5 yards. Is he correct. Explain your answer. Show your work.

Answers

Answer: yes, he is correct

Step-by-step explanation:

since there is 36 inches in 1 yard, we will multiply 5.5 by 36 to find out how many inches are in 5.5 yards. since 5.5 yardsx36 inches in one yard=198 inches, Jorge is correct.

Yes, he is correct, because if in one yard is 36 inches, and half a yard is 18 inches, if you multiply 36 by 5, you get 180. Then add the half yard of 18 to have 5.5 yards, or 198 inches. :)

Malia has $10 to spend at the fall carnival. She decides to order an ice cream cone for herself and one for her sister.

a. If the cost of each ice cream cone is $2.35, how much will she spend on the ice cream cones? Write an equation and solve.


b. How much change will Malia receive? Write an equation and solve.

Answers

Answer:

Malia's allowance changed from $10.00 to $(10 - 2x) after buying ice cream cones.

Step-by-step explanation:

We are given the following information:

Malia's allowance to spend at carnival = $10.00

Ice cream ordered by her = 2

Let x dollars be the cost of one ice cream cone.

Total money spent on ice creams =

Formula:

change in Malia's allowance = total allowance - money spent on ice cream cones = 10 - 2x

Thus, Malia's allowance changed from $10.00 to $() after buying ice cream cones.

malia will spend 4.70 and have 5.30 in change

PLEASE HELP IT'S DUE TODAY

The two points on the graph are given by the function f.


a) Use the two points to find the equations that represents the function f.


b) What is f(6) ?

Answers

Answer:

f(6) = 2/3

Step-by-step explanation:

f(6) is equal to the x coordinate being 6, which means you have to use the pattern to find the y coordinate, im not sure if that makes sense but I tried

Answer: 2/3

Step-by-step explanation:

f(6) is equal to x coordinate so you have to use the pattern to find y

Estimate 5.209 + 2.667 by rounding to the nearest whole number.

A: 13

B: 8

C: 5

D: 7

Answers

Answer:

8

Step-by-step explanation:

bc I am very smartt >:))

Answer:

its 8 cause the answer you get is like 7.8 somethin round the up and you get 8

Step-by-step explanation:

One out of every 9 light bulbs is defective.
What constant of proportionality relates defective bulbs to total bulbs?

Answers

The answer is very simple you can simply put it as 0.1

The constant of proportionality that relates defective bulbs to total bulbs is 1 / 9.

What is Constant Proportionality?

The ratio connecting two given numbers in what is known as a proportional relationship is the constant of proportionality. Constant ratio, constant rate, unit rate, constant of variation, and even rate of change are other names for the constant of proportionality.

Given:

One out of every 9 light bulbs is defective.

Total bulbs = 9

So, Defective bulbs = 1

Thus, Constant of proportionality = Defective bulbs / Total bulbs.

Constant of proportionality = 1 / 9

Hence, the constant of proportionality that relates defective bulbs to total bulbs is 1 / 9.

Learn more about constant of proportionality here:

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Estimate 6.278 − 4.278 by rounding to the nearest whole number.

Answers

Answer:

2

Step-by-step explanation:

Estimate 6.278 − 4.278 by rounding to the nearest whole number.

6.278 rounds to 6

and 4.278 rounds to 4 so:

6 - 4 = 2

Check: 6.278 − 4.278 = 2

It’s 2 bing bong bing bing

this is not a function

True
False

Answers

Answer:

false

Step-by-step explanation:

How many solutions does this equation have? 6h−(9−3h)=6−3(h+2) Responses infinitely many infinitely many 1 0

Answers

Answer: It only has one answer.

Step-by-step explanation: If you try to solve this more than one way, the answer will be the same.

This equation only has one answer and again im not good at math

WILL GIVE BRAINLIEST IF CORRECT!! Evaluate. (3/8 + 3/4) - (1/3 + 1/6) Enter your answer as a fraction in simplest from by filling in the boxes

[ ]
[ ]

Answers

The answer is 5/8.

9/8 - (1/3+1/6)
9/8 - 1/2 =

= 5/8

Answer: 5/8

Step-by-step explanation: 3/8 + 3/4=9/8 then 1/3+1/6=1/2 then you subtract both answers 9/8-1/2=5/8

The cost to stay in a hotel room was $590 . There was also a 16% tax charged on the room. What was the total cost of the room with tax included?

Answers

Answer: 684.4% is your answer

Step-by-step explanation:

16% of 590 is 94.4 dollars

94.4 + 590 = 684.4

and that leaves you with your answer

684.4.
16% of 590 is 94.4 and 590+94.4 is 684.4.

Alex's book has an area of 88 square inches. What are the length and wide measurements of the book?

Answers

length is 11 inches
width is 8 inches
length: 11 in
width: 8 in
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