Mathematics Middle School

alright heres another one

Alright Heres Another One

Answers

Answer 1
The answer is letter B
Answer 2
Isnt it b. I think its a since like it shows that there is only one 5 and 6 numbers

Related Questions

help plsss omf this is hard (8th)

Answers

Answer:

(-2,5)

Step-by-step explanation:

Answer:

(-2,5)!!!!!!!!!

Step-by-step explanation:

A mine worker discovers an ore sample containing 500 mg of radioactive material. It is discovered that the radioactive material has a half life of 1 day. Find the amount of radioactive material in the sample at the beginning of the 7th day.

Answers

Answer:

7.8125 or 7.8

Step-by-step explanation:

[tex]gm=(1/2)^{n-1}[/tex]

[tex]gm=500 (1/2)^{ 7- 1} \\gm= 500 (1/2)^{6}[/tex]

= 7.8125 or 7.8

The amount of radioactive material in the sample at the beginning of the 7th day is 3.906 milligram.

What is Half life of an Element?

Half life of an element is the time taken by a radioactive substance to break down into half the quantity of the initial quantity.

In other words, we can say that it is the time for an element to disintegrate half of it's atoms.

Given that,

Half life of radioactive material is 1 day.

Initial amount of the substance = 500 mg

At the beginning of the first day, there will be 500 / 2 = 250 mg os substance.

Taking the first term as 250 and the common ratio as 1/2, we can consider this as a geometric sequence.

nth term of a geometric sequence = a rⁿ⁻¹, where a is the first term and r is the common ratio.

At the beginning of seventh day,

Amount of radio active substance = 250 (1/2)⁷⁻¹ = 3.90625

Hence the amount at the beginning of seventh day is 3.906.

Learn more about Geometric Sequence here :

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Use operations of decimal, fraction, and percent numbers to model the following scenarios. In your final answer, include only an equation or proportion modeling the scenario. Do not solve the problems.

A family dines in a popular franchise restaurant. At the end of the meal, they decide to leave their server a monetary tip that is equal to 20% of the total bill amount, $60.50. How much will the family leave their server as a tip?
A family dines in a popular franchise restaurant. They plan to use a coupon that will give them a discount of 15% off of their total dinner bill, not including applicable sales tax or their server’s tip. If the family’s dinner bill totaled $34.00 before tax and tip, how much money will they save by using the coupon?
A family dines in a popular franchise restaurant. They plan to use a coupon that will give them a discount of 10% off of their total dinner bill, not including applicable sales tax or their server’s tip. The bill totals $157.30 before tax and tip. What is the new total after the server applies the 10% off coupon?
A family of eight dines in a popular franchise restaurant. The restaurant has a policy of automatically including a standard tip to the final bill for parties larger than six people. The bill for the meal included a total of $58.25 in food and beverage sales, plus a standard tip of $10.49. What percent of the food and beverage sales does the restaurant consider to be a standard tip for parties larger than six?
A family dines in a popular franchise restaurant that has a policy of automatically including a 20% tip on all food and beverage sales before coupon discounts are applied. What is the family’s total bill amount if their food and beverages totaled $94.20 and they used a 15% off coupon? (HINT: Create more than one model.)

Answers

An2=1

Step-by-step explanation:

i got ur point hehe. gotta go my own way

Answer:

1) 60.50*20=1210

=move the decimal  

=12.10

2)15*34=510

=move the decimal

=5.1

3)10*157.30=1573

=move the decimal

=15.73

157.30-15.73= 141.57

4)58.25/10.49=5.55

5)94.20+18.84=113.04

113.04-14.13=98.91

Step-by-step explanation:

Sorry if I got any of them wrong

I WILL MARK BRAINLIEST IF ITS CORRECT

Answers

Answer

Step-by-step explanation:

WILL GIVE BRAINLY PLZ HELP ASAP
John’s house is 12 miles away from school. He is two-thirds of the way home. How many miles has he walked?
A. 8
B. 16
C. 18
D. 24

Answers

Answer:

the answer is 8 miles

Step-by-step explanation:

8 because 12 divided by 3 is 4 so if he walked 2/3 already he walked 8 which is 4+4

HELP I NEED RIGHT ANWSER QUICK!!!

Answers

What’s the question?????

Answer:

Make soooo much sense

Step-by-step explanation:

please help my guys plaese

Answers

Answer: I think it’s A

Step-by-step explanation:

Not sure though

Answer:its C

Step-by-step explanation:

Solve the equation 3= d+2
Will give brainliest be quick plz

Answers

Answer:

d=1

Step-by-step explanation:

Answer:

D=1

Step-by-step explanation:

3-2 =1 1+2=3

Which equation is parallel to:
y = -2x +2
Group of answer choices

y = 1/2x +7

y = -2x +5

y = -1/2x +3

y = 2x +6

Answers

Answer:

y = -2x +5

Step-by-step explanation:

If the slope(-2x is the slope in this case) is the same, then the equation is parallel

I'm pretty sure that it's the second one

please help me ill mark brainliest

Answers

Answer:

its C and 4.7x10 -5 was right

Step-by-step explanation:

ILL GIVE BRAINLIEST HELP WITH ALGEBRA
Simplify the expression
(x+y)⁵ ÷ (x+y)²

Answers

It’s (x+y)^3. Also said as (x+y) to the third power. Hope this helped!

11/3 × 5/8
A. 3/4
B. 4/5
C. 5/6
D. 5/8
btw these are fractions if you dont know the answer then please do NOT waste my points. i tried hard to get these points.

Answers

Nun of them are right the real anwser would be 55/24 and as a decimal 2.2916666666667

The answer is 0 it’s not hard to do

please help ill give brainliest

Answers

Answer: C

Step-by-step explanation: She wants to sell more than 180, so it isn't equal too. Each ticket costs $15. Good luck! :D

Answer:

so basically I think that the third one is right bc if she wants to raise more than $180 then t=13 and 15(13) Is 195

I have a question. what grade is this bc I am in 6th and I wnna know if I'm smart lol

Help Me Please! Will Give Brainliest for the first person who is correct!!

Answers

Answer:

= 1/4

Step-by-step explanation:

1/4

Decimal form: 0.25

Based on the context in paragraph 4, fossil refers to _____.

Answers

fuol next time put the paraghpt too pls

Step-by-step explanation:

How does the decimal point move when multiplying 79.816×103?

Answers

Answer:

8221.048

Step-by-step explanation:

Answer:

It moves two places to the right

Step-by-step explanation:

Lets pretend we are multiplying my 100 instead of 103. That has two zeroes, so 79.816 would turn into 7981.6

If we did multiply by 103, the answer would be 8221.048, which is still two places to the right

plz help
in this experiment, you will use a track and a toy car to explore the concept of movement. You will measure the time it takes the car to travel certain distances, and then complete some calculations. In the space below, write a scientific question that you will answer by doing this experiment.

Answers

Answer:if you need a question you can say “ how far did the toy car move? “

Step-by-step explanation:

Answer: how far did the car move .

Mr. McLean manages playgrounds for the 8 elementary schools in the Franklin School District. This year, he wants to put new sandboxes at each of the schools. He estimates that he will need 3 tons of sand for this project. How many 50-pound bags of sand should he order for each school?

Answers

he should order 120 bags for each school
He will need 15 sandbags per school

3 tons = 6000

6000/8= 750lbs for each school
750/50=15 (50#) bags needed

I just need 1 more reason for the black text. Thanks!

Answers

Answer:

1: proportion means 2 ratio are equivalent

2: its also known as constant of proportionality

Step-by-step explanation:

give me brainlist pls

2/5 divided by 1/4 as a fraction

Answers

Answer:

Step-by-step explanation:

2/5 divided by 1/4 is which (2/5)/(1/4) is  equal to fraction 8/5

The given statement "2/5 divided by 1/4 as a fraction"

It can be written as in mathematical form as (2/5)/(1/4)

To solve 2/5 divided by 1/4 as a fraction,

Multiply the first fraction by the reciprocal of the second fraction.

The reciprocal of 1/4 is 4/1.

So, we have (2/5) ÷ (1/4) = (2/5) x (4/1).

Multiplying the numerators and denominators gives us

(2x4) / (5x1) = 8/5.

Therefore, 2/5 divided by 1/4 is equal to 8/5.

Learn more about the multiplication visit:

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Screen-printing a batch of shirts requires 2 minutes per shirt in addition to 4 minutes of initial set-up time. If it takes 80 minutes to screen-print a batch of shirts, how many shirts are in the batch?

38

4

40

20

Answers

38 is the correct answer because 80-4=76 then divide that by 76/2 give you 38

The table below shows the data for a random sample of fish that were collected from and later released into a lake:

Type of Fish Catfish Grass Carp Bluegill
Number of Fish 52 61 87
How many bluegills are estimated to be present if a sample of 800 fish is collected from the lake? (5 points)

Group of answer choices

148

174

244

348

Answers

Answer:

244

Step-by-step explanation:

The answer:
It is pretty sure 244

Write in slope intercept form
5x - 3y = -9
Group of answer choices

y = (5/3)x + 9

y = (5/3)x - 3

y = (3/5)x + 3

y = (5/3)x + 3

Answers

It’s (5/3)x +3 in slope intercept form

Answer:

Y = (5/3)x + 3

Step-by-step explanation:

Plz brainliest

plssss help me with this thx im not good at math

Answers

The answer is c 25 minutes btw hope you have a wonderful day

Between 3 and 5 seconds, the elevator was moving at a rate of

Answers

Answer:

4 is the answer hope this helps

4 the elevator was a moving rate

need help plz i show me how to do it plz :)

Answers

I’m pretty sure you multiply the sides your you find the formulas for the hight and width
The formula for the surface area of a rectangular prism is SA= 2( (width•length)+(height•length)+(height•width) )

Write a story that could represent this math problem.

The equation four times three eighths. Below is four rectangles partitioned into eight equal parts. All the rectangles each have three parts shaded.

Answers

Answer:

My friend Matthew bought four pizzas. We ate five eighths of each pizza leaving three eighths left in each box. How much pizza did we have left over between the four boxes?

4 times 3/8 is equal to 1.5. (just felt it was incomplete without this answer. Also, hope this was a satisfactory answer.)

BRAINLIEST GOING TO THE FIRST ANSWER

Answers

Answer:

w + 2.3 > 18

Step-by-step explanation:

MARK ME BRAINLIEST!!!!!!!!!

Answer:

w + 2.3 > 18

Step-by-step explanation:

hope this helped :)

Evaluate the expression when x=20 and y=4.

8y−x =

Answers

Answer:

12

Step-by-step explanation:

You literally have x and y, just plug them into the equation. It will be 8(4)-20=12

Answer:

12

Step-by-step explanation:

theres 2 questions, please answer will give brainliest

Answers

Answer:

1. 207.35

2. 153.94

Step-by-step explanation:

1. 207.35
2. 153.94 is the two answer
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