Mathematics Middle School

good morning guys can you guys plz help on my math :D

Answers

Answer 1

Answer:

Question 1:

Question 2:

False

Question 3:

Question 4:

Step-by-step explanation:

Please let me know if these are wrong is that I can fix them.

Related Questions

Austin correctly answered 92% of the questions on a geography quiz. Liz answered 47 of the 50 questions correctly. Which student got the most questions correctly.
(if you answer this may you please show your work)

Answers

Answer: Liz
To find the percent Liz got correct, you would do 47/50 to get 0.94. You would then move the decimal 2 places to get 94%.
94%>92%

Answer:liz scored better

Step-by-step explanation:

Liz scored better because how to find a percentage is dividing whatever two numbers you have by each other so it would be 47 / 50 which equals 0.94 then you times it by 100. Which would equal 94% which is better than a 92 which means Liz got the higher score

HELP PLEASEEEE!!!!!!!!!!

Answers

I think the permeate would be 8cm, correct me I’m I’m wrong. Sorry if I got the answer incorrect

study -----------------

Find the scale factor that was used in the dilation shown.

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1.5 is the answer, hoped that helped

The scale factor that was used in the dilation could be 1.5 units.

What is scale factor?

Suppose a figure (pre image) is dilated (dilated image) by scale factor of k. So, if a side of the figure is of length L units, and that of its similar figure is of M units, then:

L = k × M

where 'k' will be called as scale factor.

The quantities that are squares or multiple of linear things twice grow by square of scale factor.

So area of first figure = k² × area of second figure

Similarly,

The Volume of first figure = k³ × volume of second figure.

Since the scaling is done by product of some constant, that constant is called scale factor.

Then we have:

K = 4/6

K = 2/3

K = 1.5 units.

Thus, scale factor is the ratio of the new measurement to the old measurement therefore, the scale factor that was used in the dilation could be 1.5 units.

Learn more about dilation here:

https://brainly.com/question/27212783

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please help me on my math please i dont wanna fail

Answers

Answer:

5. 78.54

6. C

7. 254.47

8. 50.25

Step-by-step explanation: :) Remember, the radius is just half of the diameter. So if the Diameter is 18, the radius is 9.

y=x^2- x + 2, y = x + 5
Solve by substitution
I need the work shown please

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Here you are . i think thais is the asnwer

PLS HELP ASAP 30 POINTS

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Theoretical probability=45%
Experimental probability=75%

find the slope of the line. y = 5/3x + 4

Answers

Answer:

slope= 5/3

Step-by-step explanation:

y=mx+b

slope=m

your welcome

A : slope is 5/3 hope this help

Which equation has a constant of proportionality equal to 7?
A. 4y = 28x
B. 7y = 28x
C. 28y = 4x
D. 28y = 7x

Answers

A is correct.

Reasoning: 4 x 7 = 28

good luck!

The solution is Option A.

The equation which has a constant of proportionality k = 7 is 4y = 28x

What is Proportion?

The proportion formula is used to depict if two ratios or fractions are equal. The proportion formula can be given as a: b::c : d = a/b = c/d where a and d are the extreme terms and b and c are the mean terms.

The proportional equation is given as y ∝ x

And , y = kx where k is the proportionality constant

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Given data ,

Let the equation be represented as A

Now , the value of A is

The proportional equation is given as y ∝ x

And , y = kx where k is the proportionality constant

Now , the equation is

4y = 28x

On simplifying the equation , we get

Divide by 4 on both sides of the equation , we get

y = 28x/4

y = 7x

y = 7x is of the form y = kx where the value of k is 7

Therefore, the value of k is 7

Hence , the value of proportionality constant is 7

To learn more about proportion click :

https://brainly.com/question/7096655

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Elspeth knows that Pi times r almost-equals 9.42 centimeters. What would she need to do to find the circumference?
She could multiply 9.42 by 2.
She could multiply 9.42 by Pi.
She could divide 9.42 by 2 to find the radius, and then square the radius.
She could divide 9.42 by Pi to find the radius, and then multiply 9.42 by the radius.

Answers

Answer:

First one

Step-by-step explanation:

It will be the first one

Help with question, best answer gets brainliest

Answers

Answer:

I think B

Step-by-step explanation:

Tamanika received a raise in her hourly pay, from $14.00 to $19.18. Find the percent change.

Answers

Answer:

37% increase

Step-by-step explanation:

(V2−V1)|V1|×100

=(19.18−14)|14|×100

=5.1814×100

=0.37×100

=37%change

The answer is 37% increase because it is :)

I need helppp ASAP plsssss

Answers

Answer:

12.56

Step-by-step explanation:

c= 2x3.14x 2km= 12.56

The answer is 10.14km because you multiple by

Please help with this, need the answer ASAP, please explain your reasoning for both of these!

Answers

Answer: 6

Why: (8/3)/8=3*2= 6
(54/5)/(18/5)=3*2=6

Length times height divided by 2 equals the area of a triangle so by doing the area divided by the length or height you get the other one and you just have to multiply by two to get the final answer

answer is 6 sorry if I’m too late to answer

a linear function contains the following points.
what are the slope and y-intercept of this function?

Answers

Answer:

Step-by-step explanation:

the slope is -3

the slope is -3 so it would be B

Nine grapefruits cost $4. Use the ratio table to determine how many grapefruits can be bought for $20.

Answers

Answer:

D. 45

_________

Need help ASAP!! I Can give brainlist for the first right person.

Answers

Answer:

Step-by-step explanation:

1. 720,000

2. 119.50

3. 17.68

4. $75

5. 77.74

Write the equation of the line in fully simplified slope-intercept form.

Answers

Y=1/5x+7

The y intercept is the +7, and the fraction, 1/5 is your slope

the answer is y=1/5 +7

What is "four thousand, seven hundred two" in standard form?

Answers

Answer:

the answer is 4,702

Step-by-step explanation:

if you didn't know standard form is letter basically written into numbers so what it means by "four thousand, seven hundred two" in standard form it wants you write it in number form there is a better way to explain this but im in a little rush

Last Week, Angus studied for 6 1/3 hours. This week. he plans to study 1/2 as much as he studied last week. How many hours does Angus plan to study this week?

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Answer:

3 1/6

Step-by-step explanation: I multiplied 6 1/3 and 1/2 together and I got 19/6

19/6 is an improper fraction so you would divide 19 divided by 6 would give you 3 1/6!

it would be 3 1/6 cause i solved it and got that

I'LL GIVE BRAINLIEST

A or D

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a, bc i took the test on edge 6 years ago

Answer:

Step-by-step explanation:

Need help with Slope

Answers

Answer:

(0,-1)

Step-by-step explanation:

...

Answer:

Step-by-step explanation:

you see the point at the bolded vertical line, yea thats the y intercept which means its (0,1)

Which situation can be modeled by the inequality 3x+7<13?

Amelia can fit fewer than 13 textbooks in her school locker. She already has 7 textbooks in her locker. How many more textbooks can Amelia add to her locker?

Jake has less than $13 to spend on a taxi ride. The taxi company charges a $3 flat fee and $7 for each mile. How many miles can Jake ride in a taxi?

Larissa has fewer than 13 game tokens. The games at the arcade each require 3 tokens to play. How many games can Larissa play at the arcade?

Gabriel has less than $13 to spend on a floral arrangement. The florist charges $7 for a base floral arrangement and $3 for each additional flower. How many additional flowers can Gabriel buy?

Answers

Answer:

The last option.

Step-by-step explanation:

Less than 13

7 is $7

3x is $3 each additional flower

Write a real world problem involving multiplication by a decimal factor.Then solve the problem. Write the real world problem and solve

Answers

Sample question:

Aimee bought 2 CDs each costing $11.95 and 3 CDs each costing $6.48. She paid with a $50 note. How much change did she receive?

Answer:

2 × 11.95 = 23.9

3 × 6.48 = 19.44

Total spent = 23.9 + 19.44 = 43.34

Change = 50 - 43.34 = $6.66

Answer:

if an article was bought by Amina for 2Kobo and John bought articles for 8Kobo how many articles did John buy?

1 a=2k

x a=8k

cross multiply

8k × 1 = 2k × x

8k=2k

Simplify the expression.
–2.5(1 – 2n) – 1.5n

Answers

Answer:

9.5n - 2.5

Step-by-step explanation:

-2.5(1 - 2n) - 1.5n

distribute the -2.5 into the ( )

-2.5 + 10n - 1.5n

combine like terms

-2.5 + 9.5n

9.5n - 2.5

Hope this Helps!!!

Can someone help me out? (serious answers only)

Answers

The answer is D -60.

Answer:

Step-by-step explanation:

Good Luck

PLEASE HELP ASAP
Sorry if it’s hard to read but I have to turn this in in a few minutes and I don’t get it, you have have to sort them in 5 different piles

Answers

Answer:

If it goes through the orgin

Step-by-step explanation:

what is the rate of change when the numbers are (2,11) and (5,17)? show work

Answers

Answer:

m=2

Step-by-step explanation:

17-11 over 5-2 equals 6 over 3, which simplifies to 2

Please help me I'm trying to get this done and can you please explain it!

Answers

i’m guessing it’s D because it just stops on the y-axis and if it was symmetrical then it wouldn’t be a function at all

Stefan has a balance of $6.50 in his savings account and deposits $1.25 each week. Write an inequality that represents x, the number of weeks Stefan must deposit $1.25 in order to have a balance of more than $50 in his savings account.

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6.50+(1.25x)= 50
hope this helped

Please find an equivalent expression to 2(n+1)-3

Answers

Answer:

2n-1

Step-by-step explanation:

Answer:

(2n-2)-3

hope this helps

have a blessed day :)

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