Mathematics Middle School

Evaluate the following.
8-15/3+2x9?

Answers

Answer 1

Step-by-step explanation:

8-15= -7. (subtract)

3+2*9=21. (multiply/add)

-7/21 = 1/-3. (simplify)

Answer 2

Answer: the answer would be

Step-by-step explanation:

You would do the multiplication first: 2x9=18

second you would do the division: 15/3 = 5

third you would add: 18+5=23

Fourth you would subract: 23-8= 15

so your answer would be 15

( btw i was following the pemdas order, {parenthesis, exponents, multiplication, division, addition, subraction} just wanted to put this out there so it can help you with future problems like this :-) )

plz let me know if this is correct or nah, thx!

Related Questions

Which number line shows the solution set to the following inequality? 12x+13≥17

Answers

Answer:

Where are the number lines?

Step-by-step explanation:

Put them DB and I'll gladly answer!

How much is the orange moon counted for?
How much is the green circle counted for?

Answers

Answer:

green= 3 each

orange moon= 5 each

Step-by-step explanation:

Answer:

Green= 3

Orange = 5

Step-by-step explanation:

36 - 10 = 26

5 x 4 = 20

3 x 2 = 6

Choose the equations in which w = 100 makes the equation true.
A. 0.54 ÷ w = 0.0054
B. 4,086 ÷ w = 4.086
C. 362.7 ÷ w = 3.627
D. 5.3 ÷ w = 0.0053
E. 21.9 ÷ w = 0.219

Answers

Answer is A
Hope it helps
I say A is the answer or B

Suppose the new actual number of pizzas sold today was 60. The original previous day sold was 65. Describe the number of pizzas sold as a percent increase or decrease (aka Percent of Change), rounded to the nearest hundredth.

Answers

Answer: 1) Pizzeria must sell 78 pizzas for receiving the bonus.
2) The number of pizzas sold is decreased by Approximately 7.69 %.
Step-by-step explanation:
1) The number of pizza sold yesterday = 65,
The target for receiving the bonus = 20% more than the number of pizza sold yesterday
= 20% more than 65,
= 65 + 20% of 65 ( 1% = 0.01 ⇒ 20% = 0.2 )
= 65 + 0.2 × 65
= 65 + 13 = 78.
Hence, they must sell 78 pizzas for receiving the bonus.
2) If the actual number of pizza sold today = 60
⇒ Total reduction in the number of pizza = 65 - 60
= 5
Thus, the percentage decrease in the number of pizza


on the left side of the triangle, it says 10 cm, on the right side of the triangle, it says 18 cm, below the triangle, it says 15 cm. find the area of the triangle and answer this question is square cm.

Answers

Area formula for a triangle is 1/2BxH

B=15
H=10

1/2(15)= 7.5

7.5 x 10= 75

So the area is 75 square cm :)

My daughter need help on this and I am not good at telling time like that

Answers

Answer:

7:42

Step-by-step explanation:

Answer:

The time is 7:37, you can tell because the smaller hand is close to the 8 but it is not on the 8 just yet because the big hand has not passed 12

Step-by-step explanation:

3,000 pounds of sand is usede to fill sandboxes. 1,000 pounds can fill the big sandbox, and the rest can fill 4 equal-sized smaller sandboxes. how much sand can be put in each of the smaller sandboxes?

Answers

500pounds because 2000 (the left over sand after you fill the big box) divided by 4(smaller sandboxes) is 500

The amount of sand that can be put in each of the smaller sandboxes is 500 pounds.

What is division?

Division is breaking a number up into an equal number of parts.

Given that, 3,000 pounds of sand is used to fill sandboxes. 1,000 pounds can fill the big sandbox, and the rest can fill 4 equal-sized smaller sandboxes.

Amount left after filling the larger box = 3000-1000 = 2000 pounds

To find the equal amount of sand to be filled in 4 smaller boxes, we will divide the amount left to the number of boxes.

= 2000/4

= 500

Hence, The amount of sand that can be put in each of the smaller sandboxes is 500 pounds.

For more references on division, click;

https://brainly.com/question/21416852

#SPJ2

Party Food Item Amount
Fried Chicken 24 pieces
Deli Meats 3 2/3 pounds
Lasagna 11 3/4 pounds

Answers

Answer:

ok do you need help yes or no

Which set of statements explains how to plot a point at the location (Negative 3 and one-half, negative 2)?
Start at the origin. Move 3 and one-half units right because the x-coordinate is Negative 3 and one-half. Negative 3 and one-half is between 3 and 4. Move 2 units down because the y-coordinate is -2.
Start at the origin. Move 3 and one-half units down because the x-coordinate is Negative 3 and one-half. Negative 3 and one-half is between -3 and -4. Move 2 units left because the y-coordinate is -2.
Start at the origin. Move 3 and one-half units down because the x-coordinate is Negative 3 and one-half. Negative 3 and one-half is between -3 and -4. Move 2 units right because the y-coordinate is -2.
Start at the origin. Move 3 and one-half units left because the x-coordinate is Negative 3 and one-half. Negative 3 and one-half is between -3 and -4. Move 2 units down because the y-coordinate is -2.

Answers

Answer:

Start at the origin. Move 3 and one-half units left because the x-coordinate is Negative 3 and one-half. Negative 3 and one-half is between -3 and -4. Move 2 units down because the y-coordinate is -2.

Step-by-step explanation:

The intersection of parallel lines b and c and transversal line d form several special angle relationships, as shown in the image below.



Which of the following pairs of angles are supplementary? Select all that apply.

∠1 and ∠4
∠5 and ∠6
∠2 and ∠8
∠3 and ∠6

Answers

Supplementary= 180
5 and 6
2 and 8

Answer:

your awnser would be 5 and 6 and 2 and 8

Step-by-step explanation:

hope this helps

On a hiking trip, Melissa notes that she hikes about 16 kilometers every 2.5 hours. If she continues at this rate, about how many kilometers she could hike in 8 hours. Use at least 2 ways to show your answer.

Answers

Answer:

so if she hike 12 km every 4 hours, how many km could she hike in 6 hours.

first u have to find the equation. 12 km=4hours

? =6hours

and then you have to multiply 12 km by 6 hours and divide the results by 4 which is 12×6÷4. the final answer will be 18 kilometers.

Step-by-step explanation:

Sorry if its wrong

please help!!!! im stuck on this oneeeeeeeeeeeeee and also explain

Answers

Answer: B. 3n + 9

Step-by-step explanation:

there are 3 with an unknown value so it is 3n and there are 9 pieces that are each equal to 1 witch makes it 3n+9. hope this helps have a good day

the answer is b! 3n+9

72 + (13- 4) + 5 x 23
72 +
+5x2²
72 + 9 +5 %
+ 5 X 8
8+

Answers

Answer:

196

Step-by-step explanation:

do parantheses first, then multiplication add the answer from parantheses and multiplication and lastly add 72

ignore my handwriting but here’s some math i need for tomorrow

Answers

FYI - 14,15,16 are correct.

17. a) 7 (nearest integer), b) 6.8 (nearest tenth)

18. a) 14 (nearest integer), b) 13.8 (nearest tenth)

19. [tex]\sqrt{40}[/tex] --> simplified to = 2[tex]\sqrt{10}[/tex]

-- let me know if you have any questions regarding this.

How many minutes are from 5:32 Pm to 6:19 Pm?? PLEASEEEE HELP!!!! THIS IS URGENT PLEASEE HELP

Answers

There are 28 minutes from 5:32 to 6:00 and 19 minutes from 6:00 to 6:19. Thus, there are 47 minutes from 5:32 pm to 6:19 pm.

I will mark best answer

Answers

They should divided by 1 for the last step

Answer:

X = 4

Step-by-step explanation:

After 5 new students joined a class, the class had 35 students. Which equation can be used to find n, the number of students in the class before the 5 new students joined?

Answers

x+5 = 35

Hope this helps

Answer:

35-5=n or n=35-5

Step-by-step explanation:

when you take the new students away, you get the number of students before. 35-5 equals the number of students before.

n=30

In Jason's baseball card
collection 62% of his cards are
from the National League. If
Jason has 50 cards, how many
players are from the National
League?

Answers

Answer:

28.

Step-by-step explanation:

28 is the correct answer using the mathematical format given by the percentage supplying us with the variable then by 50 the answer would be 28.

Answer: 28

Explanation: :)

can someone help me out :P

Answers

-5.2<.-4.75<-9/2.....

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Answers

Answer: We need to see the graph to add an good answer

A real estate agent expected 18 people to show up for an open house, but 25 attended. Calculate the percent error. Show your work.

Answers

Answer:

72

Step-by-step explanation:

just look up 25 out of 18 percentage

The answer is ——— 72

What is the perimeter and area of the figure below?

Answers

33 is your answer, you would add 13+13=26 and then you add 4+3, when you put it all together it’s 33
Perimeter: 33.9 Area: 38.5


The dotted line= 5 and the mussing solid line= 13.9(using pythagorean theorem a^2 + b^2 = c^2.) 4+3+13+13.9
The area of the small triangle is 6 and the area of the large triangle is 32.5.
32.9+6

Determine if the statement below is always true, sometimes true, or never true.

When x is a nonzero integer, the quantity −3x will be negative.

Answers

I am pretty sure it is always true
Sometimes true! Nonzero can be all positive and all negative! -3(-3)=9 this is an example of why it’s false|| -3(4)=-12 is an example if why it’s true||

A cookie recipe calls for 1/4 cup of brown sugar for one batch of 24 cookies. How many cups of brown sugar would be needed to bake 144 cookies?
Group of answer choices

2/3

1 1/4

1 1/2

1 2/3

Answers

Answer:1 1/2

Step-by-step explanation:trust me bro

1 batch of cookies = 24 cookies
114 cookies = 114/24 = 6 batches of cookies
Amt of brown sugar needed = 1/4 x 6 = 6/4 = 1 1/2

Simplify 6(x + y) + (x - y).

6x
7x
7x + 6y
7x + 5y

Answers

Answer:

7x + 5y

Step-by-step explanation:

I answered the 6(x+y) + (x-y).

Lily likes to collect records. Last year she had 10 records in her collection. Now she has 13 records. What is the percent increase of her collection?

Answers

Answer:

30%

Step-by-step explanation:

We know if we put the number of records in the end ÷ the number of records previously, we can get the percentage change.

13/10 = 1.3

1.3 - 1 (Because we want to find the increase, not the amount of percentage this is to that)

0.3 = 3/10 = 30%

30 percent your welcomee

I need help with my math work please help please use explanation
Jenisse went running at the Holyoke High School track. She ran 4 miles in 31 minutes at a constant speed.
(A)What’s the unit rate for this ratio, written as a fraction? (How many minutes per mile?)
(B)How many minutes would it take for her to run 6 miles, written as a fraction?
(C)How many minutes would it take for her to run 10 miles, written as a fraction?

Answers

Answer:

all i know is A is 12 miles per hour

Step-by-step explanation:

A teacher surveys a sample of students from Lake Middle School. He asks the students where they’d like to go for a field trip. He records these results:

80 choose the aquarium.
60 choose the science center.
30 choose the planetarium.
40 choose the farm.
The teacher wants to figure out the relative frequency of a student choosing the aquarium. He will then estimate how many students out of all 1000 at the school are likely to choose the aquarium.
4) Write and solve a proportion that the teacher can use to estimate how many students in the whole school would choose the aquarium. Show your work.

Answers

Answer:

210 student's

Step-by-step explanation:

80 students chose the aquarium.

60 students chose the science center.

30 students chose the planetarium.

40 students chose the farm.

The students can't vote for more than one place, so you just add all the numbers together.

80 + 60 + 30 + 40 = 210 students

80 choose the aquarium

What is the value of r in the following equation?
−56r = −336

Answers

Answer

R=6

Step-by-step explanation:

Hope this helps!

Answer:

Step-by-step explanation:

Answer is :

r=6

I will mark best answer brainliest

Answers

Answer: -1

Step-by-step explanation:

-8 (-8x - 6) = -6x - 22

distribute

64x + 48 = -6x -22

get rid of the smallest x by adding 6x to both side

70x + 48 = -22

minus 48 to both sides

70x = -70

divide both side by 70

x = -1

X = -1

Lol im not getting brainliest but I’ll Write this anyway
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