Mathematics Middle School

Solve this please help

Answers

Answer 1

Answer:

ln2

Step-by-step explanation:

Use sigma notation to expand the summation, then rewrite the denominator of the terms in the form a+(n-1)d

Related Questions

Explain how to calculate a number that is equal to 2.1/1.5

Answers

Answer:

1.4

Step-by-step explanation:

first you move the decimal to make both whole numbers

then divide 21/15 = 1.4

hope this made sense

sorry if it didn't

Answer:I got thins from my frien or if it’s wron its Not my fault 2.1/1.5 = 7/n

Step-by-step explanation:

Need help ASAP BC it’s too hard for me

Answers

Answer:

1=3

Step-by-step explanation:

Subtract the number without the x from the answer then find a multiple of the number with the x for example

5x+2=17

17-2=15

Multiples

X1= 5

X2=10

X3= 15

Answer:

I hope this helps :)

Step-by-step explanation:

- 5x + 2 = 17 -- x = 3

- 3x + 5 = 36 -- x = 10.333

- x/3 - 14 = 9 -- x = 7.667 (Might be wrong)

- 73 = 3x - 20 -- x = 31

- 2x - 14 = 7 -- x = 10.5

- 53 = 9x - 1 -- x = 6

Can someone plz help me with this one problem plz!!!

Answers

Answer:

oxfords cornmarket is famous for shopping ,sure, but some locals perfer the shops in jericho.

Step-by-step explanation:

which one of these improper fractions are beetween 4 to 5? how do you know?
a) 13/3 b) 13/4 c) 13/5 d) 13/6

Answers

Answer:

Step-by-step explanation:

13 divided by 3 equals 4.33333333....

I think it’s a too :)

Which equation has exactly one solution?

Answers

Answer:

true

Step-by-step explanation:

Answer:

the top right one

Step-by-step explanation:

x would equal 2z

Is the given value a solution to the equation?

3(y + 8) = 2y − 6

y = 30

Answers

Answer:

y= NEGATIVE 30

Step-by-step explanation:

no it is not, 38x3 does not equal 54

Find the slope between the points (6, 10) and (4, -2).

Answers

Answer:

slope =6

Step-by-step explanation:

y2-y1/x2-x1

-2-10/4-6=12/2=6

4-6= -2
10-2=12
-2/12=6

-3b = 33 what is the answer

Answers

Answer:

your answer would be B= -11

Answer:

b = -11

Step-by-step explanation:

You're trying to bet b by itself. Divide both sides by -3 and you get b = -11

(2/2) WHich one is wrong, which one is correct? Only right answers only!

Answers

5 is right, not sure abt 1, 12 is mutations

Can u answer all three pls

Answers

Answer:

1. 28ft

2. 26ft

3. 20ft

Step-by-step explanation:

here ya go

2nd question is 8x4=32 because perimeter of the square is equal to dimension x4 or side + side+side + side . I hope you understand that:)

What's the estimate of 8 2/3 + 4 7/9. I really need help on this one.

Answers

Answer:

13 4/9

Step-by-step explanation:

Expressions in brackets should always be calculated first. If there are no brackets in an algebraic expression, it means that multiplication and division must be done first, and addition and subtraction afterwards.

Answers

Answer:

This statement is true

Step-by-step explanation:

A number cube is rolled many times with the results shown in the table below.
Number Rolled 1 2 3 4 5 6
Number of Rolls 13 12 12 14 11 18
The theoretical and experiment probabilities for rolling a 2 are [close together, the same, not close together].

The same
Not close together
close together

Answers

Answer:

The same (they average out to be the same)

Answer

They would be CLOSE TOGETHER

Step-by-step explanation:

pls brainliest thanks

help with 4, 5, and 6, please!

Answers

Answer:

4. -6

5. -5

6. 2

Step-by-step explanation:

2x + 3 <= -9

2x <= -9 - 3

2x <= -12

= x <= -6

3p + 4 > -11

3p > -11 -4

3p > -15

p > -5

5x + 6 >= 16

5x >= 16 - 6

5x >= 10

x >= 2

4x + 1/3y^2 What is the value of the expression above when x = 2 and y = 3? You must show all work and calculations to receive full credit.

Answers

4x+1/3y^2
4(2)+1/3(3)^2
8+1/3(9)
8+3
= 11

Three pounds of lawn seed covers 1800 square feet. How many 4 pound bags are needed to cover 8400 square feet?
please help this confusing!

Answers

1800/3=600
So 600 square feet per pound
600*4=2400
So 2400 square feet per 4 pound bag
8400/2400=3.5
Answer: 3.5 Bags if it asks to round to the nearest whole bag then 4 bags

HELP ME ASAP!!! CAN GIVE BRAINLIST:)

Answers

Answer:

I could be totally wrong but I think the first one is $163.80

Step-by-step explanation:

$163.80! i’m sorry if i’m wrong.

What is the scale factor the smaller rectangle to the larger rectangle?

bottom and top on small rectangle is 4 unites
The sides of small rectangle is 3 units

the bottom and top of bit rectangle is 8 units
the sides of big rectangle is 6 units.

A: 6 units
B: 18 units
C: 2 units
D: 48 units

Answers

the answer is 2 units

The answer is D - 48 units

Explanation: 6*8=48

What does 75% mean?
What does 2 out of 5 mean?
What does 1 out of 2 mean?
If you get a 60% on a test, what was your
Score?
If you got 1 wrong on a test that had 5 questions, how did you do?

Answers

Answer:

75% means a c if you are in the U.S

Two out of five means you got a 40%

1 out of two means 50%

60% is a D

If you got 1 wrong on a test that had 5 questions you did well and it is 80 percent.

Step-by-step explanation:

80 percent of you do the math correctly.

please help 2 qeastions

Answers

Answer:

B for the first problem and D for the second problem

what would be da answer people

Answers

Answer:

n=2

Step-by-step explanation:

(-y + -2 ) + ( 3y + 6)

-y + 3y = 2y

2 + (-6) = -4

equals to ( 2y - 4)

n=2 hdjdbruxgsiebshsysv

Jack's father is 3 times older than jack. 5 years ago the sum of their ages was 34. How old is jack now?
PLS HELP ASAP!!

Answers

Answer:

11 years old

Step-by-step explanation:

Answer:

So, the present age of Jack is 11 years.

Step-by-step explanation:

x-5+3x-5=34

4x-10=34

4x=44

x=11

Help me with this math question about this expression

Answers

divide 4 with -0.5 to get
-10 -6 -8(-2)
then multiply -8 and -2 to get
-10-6+16
then add -10 and -6 to get you to
-16+16
=0

Just a bunch of easy ones

At the IGA, a 3 lb bag of apples costs $3.54. What is the unit rate for the 3 lb bag?

At the IGA, a 5 lb bag of apples costs $5.85. A 3 lb bag of apples costs $3.54. Which is the better deal?
3 lbs. for $3.54
5 lbs. for $5.85

Brycen bikes 2 miles in 12 minutes. What is his unit rate (minutes per mile)?

Brycen bikes 2 miles in 12 minutes. Tori swims 1 mile in 24 minutes. Who is moving faster?
Brycen
Tori

Brycen bikes 2 miles in 12 minutes. Tori swims 1 mile in 24 minutes. Thinking about your last answer, how much faster is that person moving (in minutes per mile)?

Chad colors 25% of the total shapes on his paper. He colors 8 shapes. Enter the number of shapes on Chad’s paper.

Enter the unknown value that makes this statement true: 60% of 80 is what?

A ship captain is mapping a trip and wants to know the distance the ship will travel over certain time intervals. Assuming that the ship travels at a constant speed, what is its speed (in miles per hour)?

Lin’s family has completed 70% of a trip. They have traveled 35 miles. How far is the total trip?
24.5 miles
50 miles
59.5 miles
200 miles
Other:

Lin runs 3 laps around a track in 6 minutes. How many minutes per lap is that?
2
1/2
1/3
3
Other:

Lin runs 3 laps around a track in 6 minutes. How many laps per minute is that?
2
1/2
1/3
3
Other:

hopefully it is not confusing

Answers

Answer:

1. 5lb bag is cheaper

2. 6 mpm (minutes per miles)

3. Brycen

4. 18 mpm faster

5. 32 total shapes

6. 75

7. not enough info

8. 50 miles

9. 2

10. 2

Step-by-step explanation:

3lb=$3.54=1lb=$1.18

5lb=$5.85=1lb=$0.85

12 minutes/2 miles=6 mpm

24 minutes/1 mile=24 mpm

24-6=18 mpm faster

25% of 100= 4

4×8=32

60% of 80= 75

process of elimination:

24.5 is less than 35 so no

50×.7=35, total miles is 50

For Lin if she runs 3 laps in 6 minutes. you need to divided 3/6=2

i need help on this one aswell if anyone wants to help me.

Answers

The equation that represents the linear relationship in slope-intercept form is: y = -4.75x + 211.25

To find the equation of the linear relationship in slope-intercept form, we need to determine the slope (m) and the y-intercept (b).

First, let's calculate the slope (m) using the formula:

m = (change in y) / (change in x)

For the given data points:

(x1, y1) = (25, 92.5)

(x2, y2) = (35, 45)

m = (45 - 92.5) / (35 - 25) = -47.5 / 10 = -4.75

Now, let's find the y-intercept (b) using the formula:

b = y - mx

Using the point (x1, y1):

[tex]b = 92.5 - (-4.75 \times 25) = 92.5 + 118.75 = 211.25[/tex]

This means that for each unit increase in x, the y-value decreases by 4.75 units. The y-intercept of 211.25 indicates that when x is 0, the corresponding y-value is 211.25.

For more such questions on equation

https://brainly.com/question/17145398

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A rectangular park is 5/6 miles wide and 1 5/7 miles long. What is the area of the park? Enter your answer as a mixed number in simplest form by filling in the boxes.

Answers

Answer:First we need to turn 1 5/7 into an improper fraction 7x1+5 = 12/7

12 / 7 x 5 / 6 = 60/42 ....reduced.....10/7

10/7 as a mixed number is 1 3/7

Step-by-step explanation:

Answer:

1 3/7

Step-by-step explanation:

how many gallons of a 25% acid solution should be added to a 12% acid solutions to obtain a 20% acid solution? pls answer quickly <3

Answers

Answer: 2 gallons

Step-by-step explanation:

2 gallons to create a 20% solution

. Fiona has $1.20 with which to buy some ribbon.The ribbon is on sale for $0.08 per foot.How many feet of ribbon can Fiona buy

Answers

Respuesta: 4.5 pies que puede comprar si tiene $ 11.25

Explicación paso a paso:

Dado que hemos dado que

Costo de los dulces por pie = $ 2.50

Dinero total que gastó en dulces = $ 11.25

Sea x el número de pies que puede comprar

Ahora, según la pregunta, obtenemos eso,

Entonces, 4.5 pies que puede comprar si tiene $ 11.25.

25−m if m=9
Enter the correct answers in the boxes.

25 −
=

Answers

Answer:

Step-by-step explanation:

If m=9 then you replace the m in the equation and minus 9 from 25 which then equals 16.

I can’t see anything on the thing comment me and give me the question I don’t understand that

A closed circle on the number line means that the number ______________________ a possible solution.

Group of answer choices

is

is not

Answers

Answer:

A closed circle on the number line means that the number is a possible solution.

Step-by-step explanation:

An open circle on the number line means that the number is not a possible solution.

A closed circle on the number line means that the number is a possible solution. Unfalsifiable arguments are referred to as closed-circle arguments.

What is meant by closed circle?

Unfalsifiable arguments are referred to as closed-circle arguments. The supporters of Karl Popper, for instance, point to psychoanalytic theory as an illustration of an ideology rather than a science.

A circle is a spherical shape without boundaries or edges. A circle is a closed, curved object with two dimensions in geometry.

A closed and an open circle. An inequality is said to have less than () or more than (>) when it has an open circle. If the circle is closed, the inequality has a less than or equal to () or greater than or equal to () sign.

Therefore , A closed circle on the number line means that the number is a possible solution.

To learn more about closed circle refer to:

https://brainly.com/question/1462732

#SPJ2

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