Mathematics Middle School

PLZ HELP HELP HELP HELP HELP

Write the following expressions in two ways, one with parentheses and one without.


A number reduced by 3, then multiplied by 2.


A number increased by 7, then multiplied by 5.


Ten times a number , then add twenty.


N.O. L.I.N.K.S

Answers

Answer 1

Answer:

(X - 3)*2

(X + 7)*5

(10 * X) + 20

Step-by-step explanation:

I used X as a replacement for "A number"

Hope this helped a bit

Answer 2

Answer:

1. (n - 3) x 2 or n - 3 x 2

2 . (n + 7) x 5 or n + 7 x 5

3 . (10n) + 20 or 10n + 20

Step-by-step explanation:

Related Questions

Ten athletes ran two races of the same length. The scatter plot shows their times. Identify each of these statements that is false. Use pencil and paper. Which point on the scatter plot represents the athlete you think should win​ overall? Explain.
1. Nine of the times for the first race were at least 16 seconds.
2. Four of the times for the second race were less than 17 seconds.
3. There were three athletes who were faster in the second race than in the first.
4. There were three athletes who had the same time in both races.
5. There were two athletes whose times in the two races differed by exactly 1 second.
Race Times
10
12
14
16
18
20
10
12
14
16
18
20
Time for First Race (seconds)
Time for Second Race (seconds)



x y graph
Select each statement that is false.
A.
Statement 3
B.
Statement 4
C.
Statement 5
D.
Statement 2
E.
Statement 1

Answers

Answer: C, D, E are the ones that are correct

a large 2 topping pizza, L, costs $2 more than a medium 3-topping pizza, M. what is the dependent variable and independent variable?

Answers

Answer:

dependent is medium independent is large.

Step-by-step explanation:

Answer:

large is independent med is dependent

Step-by-step explanation:

Look at the diagram below of rectangle ABCD.
B
R
D
с
Based upon the Pythagorean Theorem, select all of the following statements that must be true.
AC =
AC =
O AC
VCD + AD
VCD AD
CD+ AB?
VAB? + BC?
VAB BC2
V
ОАС
AC =

Answers

Step-by-step explanation:

The statements which are true are

[tex]ac \: = \sqrt{ {cd}^{2} + {ad}^{2} } \\ and \\ ac \: = \sqrt{ {ab}^{2} + {bc}^{2} } [/tex]

Hope it will help :)❤

Answer:

Igrtgr

Step-by-step explanation:

Druidcvjhdvdkfdtg

Point O is drawn inside △ABC such that ∠OAB, ∠OBA, ∠OBC, and ∠OCA are congruent. Angle OAC and ∠OCB are congruent. Find the measures of the angles of △ABC. I WILL MARK BRAINLIEST

Answers

Answer:

45, 45, and 45

Step-by-step explanation:

Answer:

m∠A=60,m∠ B=60, m∠C=60°

Step-by-step explanation:

We know that the interior angles of a triangle total up to 180°. We also know that the six angles given are congruent. So we can do 180÷6=30. So each angle equals 30. There are two of these angles at one angle of the whole triangle. So we can do 30×2=60 for each angle of the triangle. Hope this helps :)

(Sorry if this doesn't make to much sense)

-5x-12=18 solve for x ty

Answers

Answer:

X=-6

Step-by-step explanation:

to understand thisyou need to know about:equationPEMDASlet's solve:add 12 to both sides:-5x-12+12=18+12=>-5x=30divide both sides by-5:-5x/-5=30/-5therefore x=-6
Answer is -6 because you add 12 to 18 = 30 then you divide 30 and -5 which gives you -6

HELP! I really need help on this. If the answers are right I will rate you brainlist!

Answers

Answer:

24%

Step-by-step explanation:

30% for question for 13.

helpppppppppppppppppppppppppp plssssssssss......

Answers

Answer:The second one to the right is 50 because 5 times 5 is 25 and the other is 5 times 5 to and 25 plus 25 is 50.The 2 one on the right is 40 is you multiply the length times width which is the area of a rectangle and square so do that for all of them and you find the answer for x by determining whats the length and width based on the known answers already

Step-by-step explanation:

Hope this helps :D

Yep the person answer is correct so trust him

1. Jefferson drew a line 9.5 inches long. Brittany drew a line 10 times as long. What is the difference in length between the two lines? Explain or show your work.






2. A store has a contest to guess the mass of 10,000 peanuts. If a peanut has a mass of about 0.45 gram. What would be a reasonable guess for the mass of 10,000 peanuts? Show or explain your work.




3. Ms. Webster works 4 days a week at her office and 1 day a week at home. The route to Ms. Webster’s office is 23.7 miles. The route home is 21.8 miles. About how many miles does she drive for work each week? Show or explain your work.





4. Isaac bought three packages of nuts. He bought one package of peanuts that weighed 3.07 pounds. He also bought two packages of pecans that weighed 1.46 pounds and 1.5 pounds. Did the peanuts or the pecans weigh more? How much more? Show or explain your work.





5.A pick-your-own pecan farm charges $1.35 per pound of pecans plus $0.40 per pound to crack the pecans. Amelia picks 20 pounds of pecans. The farm cracks 5 pounds for her. How much does Amelia pay all together? Show or explain your work.



6.The times for five sprinters in a 50-meter dash were 6.72 seconds, 6.4 seconds, 6.08 seconds, 7.03 seconds, and 6.75 seconds. Write these times from fastest to slowest.


7.One serving of scrambled eggs contains 7.8 grams of fat. Mr. Jensen is trying to eat no more than 60 grams of fat per day. If he eats 1.5 servings of scrambled eggs for breakfast, how many more grams of fat can he eat that day? Show or explain your work.





8. A rectangular doormat is 21 inches long and has an area of 714 square inches. Find its width. Will the doormat fit an entryway that is 36 inches wide? Show or explain your work.




9.Estimate the quotient 3,582 divided by 43. Show or explain your work.







10.The band spent $1,480 for food on the end-of-the-year picnic. If 73 band members attended the picnic, what is the best estimate of the cost of food per member? Show or explain your work.

Answers

Answer:

1. Jefferson drew a line 9.5 inches long. Brittany drew a line 10 times as long. What is the difference in length between the two lines? 9.5 x 10 = 95

95-9.5 = 85.5

2. A store has a contest to guess the mass of 10,000 peanuts. If a peanut has a mass of about 0.45 gram. What would be a reasonable guess for the mass of 10,000 peanuts? Show or explain your work.

4,500 grams because 0.45*10,000 is 4,500.

4. Isaac bought three packages of nuts. He bought one package of peanuts that weighed 3.07 pounds. He also bought two packages of pecans that weighed 1.46 pounds and 1.5 pounds. Did the peanuts or the pecans weigh more? How much more? Show or explain your work.

The one package of peanuts weigh more than both of the packages of pecans. (Work: 3.07-2.96= 0.11 pounds.) The package of peanuts weigh 0.11 pounds more than the 2 packages of pecans.

I Agree to his answer^

Select all the expressions that are equivalent to .

1. 9−10n

2. 14−3n

3. 14−21n

4. (2−3n)⋅7

5. 7⋅2⋅(-3n)

Answers

Answer:

1. 9 - 10n  = -1 + 1/10

2. 14 - 3n = 14 - 3n

3.14 - 21 = - 7⋅ (3n - 2)

4. (2-3n)⋅7 = Sorry i dont know

5. I HAVE NO IDEA SO SORRY

Step-by-step explanation:

Answer All Three Questions.

Answers

Answer:

its 1

Step-by-step explanation:

Answer:

1.) -3, -2, -0.8, -1/10(-0.1), 1/2(0.5), 0.8, 7

2.)-3

3.)7

HELPPPPPPPPPPPPPPPPP DUE SOON PLS HELP!!!!!!!! U GET BRAINLIEST

Answers

Location of point A is : 6,7
Location of point B is: 4,3
The elevation of point A is: 3 feet below the cave entrance... I’m not 100% on that one :) just being honest bc I don’t want u getting it wrong :)
The most recent update I would have to have this game is the most

Now find the number of straight pieces that Vince needs for the slides
Part A
What is the length of each slanted area

Answers

Answer:

15 is the missing length

The required length of the slanted area is 15 yards.

What are Pythagorean triplets?  

In a right-angled triangle, its side, such as hypotenuse, perpendicular and base is Pythagorean triplets.

What is pythgorean theorem ?

Pythagorean theorem is defined as  to find the unknown side of a right-angled triangle. eg, Two sides of a right-angled triangle are given as 6 cm and 9 cm, then the hypotenuse (the third side) can be calculated using the formula, h² = p2²+ b²; where 'h' is the hypotenuse and 'p' and 'b' are the perpendicular and base.

Here,
let the hypotenuse be h
now applying the Pythagorean theorem,

h² = 9² + 12²
h²= 81 + 144
h² = 225
h = √225
h = 15


Thus, the required length of the slanted area is 15 yards.

Learn  more about Pythagorean triplets here:

https://brainly.com/question/27991232

#SPJ2

It is to be determined that the hypotenuse of the slanted area with perpendicular and base is 9 yards and 12 yards respectively.

What are 109 Apples - 50 Apples - 1 Pineapple

- = Minus sign

Answers

Answer:

i hope my answer help u

Step-by-step explanation:

it will be 59 Apples-1 pineapple

Answer:

58

hope this helps :D

A pair of Adidas running shoes has a regular price of $65.00. The shoes are on sale for 20% off. The sales tax is 8%. What is the TOTAL cost of the shoes including tax?

Answers

The price should be $57.20
The total should be $56.16

First, find how much how much 20% off of 65 would be.

20/100 • 65 = 13

So you have to subtract 13 from 65
65-13=52

So with the 20% discount the price will be $52.

Next find out how much the sales tax will be.
52 • 8/100 = 4.16

The sales tax is 4.16. Add the sales tax with the price of the shoes.
52 + 4.16 = 56.16

Therefore, the total including the sales tax is $56.16.

Katherine baked a round cake that is 9 inches in diameter. She wants to decorate the cake by putting a piece of ribbon around the bottom. About how long does the ribbon need to be to wrap around the cake?

Answers

Answer:

28.26 inches long of ribbon

PLS HELP ILL GIVE BRAINLIEST I NEED ANSWER WITHIN 5 MINS

Answers

Answer:

easy, 1.899999... endless 9's its a repeated number basicly, to be simple...

1.89

Step-by-step explanation:

 Have a nice day

Answer:

k=17/9

Step-by-step explanation:

The scale factor k is 17/9=1.88 repeating

John took $43 to the movie theater. If he paid for 3 tickets that each cost d dollars, he will have 43 – 3d left. How much does he have left if the tickets cost $10 each?

PLEASE ANSWER AND EXPLAIN HOW YOU DID IT!

Answers

Answer:

$13.00

Step-by-step explanation:

3*10=30

43-30=13

What is the solution to the inequality –2.1x + 2.9 > 15.5?

a. x < −6
b. x > −6
c. x < 6
d. x > 6

Answers

the answer is b ......
It would be A I believe

PLEASE HELP ME-jsvgkhkfejvgsfkhejhivleib rgerb

Answers

Answer:

2/3x - 4

5(y+10)

c - 0.15c

50+x = 0.3p

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