Mathematics Middle School

Which one of the following compounds have a coefficient present? Choose all correct answers.
Group of answer choices

NO3

3CO

H3N2O

3NaCa

Answers

Answer 1
Choices A and C because they have numbers in front of the molecules.

Related Questions

Hey can you help me thanks its due today!!! :DPLZZZZ


1. A quotient is negative if the divisor and the dividend have______sgins.


2. A quotient is positive if the divisor and the dividend have_____sgins


3.Jared lost a total of $9.00 on his investment over 2 months. He lost an equal amount of money each month.What expression represents the amount of money he lost per month?What does yous answer tell us?


4.Grandpa Ernie is shrinking! Over the past 4n years, his height decreased by a total of 2.4 cm. It decreased by the same amount each year. What was the change in Grandpa Ernie's height each year? Show all your work.

Answers

1. Negative
2. Positive
3. 9=2m m= the money he lost each month. M= 4.50, Jared lost $4.50 each month
4. He lost 0.6 cm each year. You divide 2.4 ( the total height lost) by 4 ( the amount of time) and get 0.6 ( the height he lost each year)

Hope this is helpful!
The answer to the first question is equal signs

Which choice best represents the standard form representation of the following expression?


1/3(12 + 6x)


Question 5 options:


2 + -4x



2 + 4x



4 + -2x



4 + 2x

Answers

Answer:

6x

Step-by-step explanation:

(4+2x)
You first multiply 1/3 by 12 and get 4 then multiply 1/3 by 6X and get 2x.
I hope it helps

In a piggy bank, there are 13 dimes and 19 pennies. Find the percentage of each coin.

20 points

Answers

Answer:

About 40% dimes and 60% pennies

Step-by-step explanation:

40% dimes i think 50% for pennies.sorry if I’m wrong I tried :)

Zoe wrote Three-fifths of her essay in 30 minutes. Assuming she wrote the paper at a constant rate the entire time, which expression can be used to determine the fraction of her essay she wrote each minute?
30 divided by three-fifths
30 times three-fifths
Three-fifths divided by 30
Five-thirds divided by 30

Answers

Answer:

Three-fifths divided by 30

Step-by-step explanation:

3/5 is what she did in 30 minutes so to get what she did per minute, you divide by the number of minutes.

Answer:

Three-fifths divided by 30

3. In a nature conservatory, the ratio of butterflies to total number of flying insects is 36 to 100. There are 450 total flying insects.

(a) Create a table for how many butterflies there are for 1, 50, and 100 flying insects. Show your work.

(b) How many butterflies are in the conservatory? Show your work.

pls answer asap

Answers

Answer:

1. I'm not sure how many butterflies there will be for 1, but for for 50 flying inescts there will be 18 butterflies. For 100 flying insects there will be 36 butterflies.

2. There are 162 butterflies in the conservatory

Step-by-step explanation:

1 yard = 3 feet and 1 mile = 5280 feet, how many yards are there in 3 miles?

Answers

Answer: 5280 yards

Explanation: There are 1760 yards in a mile. So to find out how many yards there are in 3 miles, you multiply 3 by 1760 and you get 5280 yard.

What If? The rules for multiplying two integers can be extended to a product of 3 or more integers. Find the following products by using the Associative Property to multiply 2 numbers at a time. a. 3(3)(–3) b. 3(–3)(–3 ) c. –3(–3)(–3 ) d. 3(3)(3)(–3 ) e. 3(3)(–3)(–3) f. 3(–3)(–3)(–3)

Answers

Answer:

Your answer is:

A= -27

B= 27

C= -27

D= -81

E= 81

F= -81

Step-by-step explanation:

Hope this helped : )

It would honestly probably equal like or something you know

Describe why alternate interior angles are not always congruent?

Answers

Answer: Angles on opposite sides of a transversal, but inside the lines it intersects.

Step-by-step explanation:

I’m not 1000% sure if the answer but hey you should do your own work bud

Solve the equation for x
25-3x=40

Answers

x=-5

explanation:
you have to do inverse operation, so subtract 25 and -25 and then on the other side you do 40-25, which equals 15. After that you get -3x=15 and divide -3 on both sides.
The answer will be -5
What ever you do to one side you do to the other

First subtract 25 from itself and do the same to the total
25-3x=40 -3x=15

Next divide -3 from itself and the total ( keep in mind that when you multiply or divide a negative by a positive the answer will be a negative)
-3x=15 X=-5

A box is 70 cm long. Which of these is the closets to the length of this box in feet?

(A) 0.21 foot.
(B) 0.49 foot.
(C) 1. 64 feet.
(D) 2. 30 feet.

Answers

D 2.30 feet is your answer

How many different variables are in the expression 8r-1+9r-2(q-1)+11 ? Name each variable

Answers

Answer: there is 2 different variables r and q

Step-by-step explanation:

Convert to a fraction in simplest terms: .45

Answers

Answer:

9/20

Step-by-step explanation:

9/20 is the answwrrrr

help 1st person gets brainlist more info inside the file / picture

Answers

Answer:

b. 28000 times 400 equals 11200000

c.9000 times 60 equals 540000

d.900 times 600 equals 540000

e. 40000 times 500 equals 20000000

Step-by-step explanation:

yall fr please help, this was due yesterday and im trynna turn it in

Answers

Answer:

7d 8e 9c 10a 11b

Step-by-step explanation:

Help please with this math problem

Answers

The first part you would add the -1/16 with -11/16 to get an answer of -12/16. Fill in the first blank from the left to be 11 so it is 11/16. The other blank in that row should be a 1 like it is in the original equation.
Second row blank would become 12 because 11+1 =12. The third row of blanks would then simplify 12/16 to be 3/4 because both 12 and 16 can be divided by 4 to make 3 and 4 respectively.
-3/4 + -1/4 equals -1 because -4/4 simplifies to -1.

Answer:

3

Step-by-step explanation:

Suppose your heart beats 70 times a minute. Combine the time it will take for it to beat 1 million times.

Answers

Answer:

For example, if your heart beats 72 times per minute, 70 beats per minute would give a reasonable estimate. Next find how many days it takes for 1 million heartbeats: 1,000,000 ÷ 100,000 = 10. Thus, 1,000,000 beats take 10 days.

Step-by-step explanation:

Answer:

14285.7142857

Step-by-step explanation:

1,000,000 divided by 70 equals 14285.7142857

~~Hope this helps~~~ :)

What is the first thing you would do to solve this equation?
3x + 7 = -2 + 5x

Answers

take 7-2 to get 5 now you have 3x +5 is equal to 5x

A vendor has 10 balloons for sale: 5 are yellow, 2 are red, and 3 are green. A balloon is selected at random and sold. If the balloon sold is yellow, what is the probability that the next balloon selected at random is also yellow? (5 points)

Group of answer choices

fraction 5 over 10

fraction 5 over 9

fraction 4 over 9

fraction 4 over 10

Answers

Answer:

fraction 4 over 9

Step-by-step explanation:

This is because there is one less yellow balloon and one less balloon in total.

Answer:

There are 9 balloons remaining, of which 4 are yellow. therefore the probability that the next balloon is also yellow is 4/9

Help fast Pleaseeee Please show all workkkkk

Answers

Answer:

sorry

Step-by-step explanation:

i have literally no idea

evaluate -7/8➕(-3/4)

Answers

-19/8 I believe that this is the answer

Answer:

-1 5/8

Step-by-step explanation:

1.  -7/8 + -3/4 (take the numerator and denominator of -3/4 times 2 so the denominators on both fractions will be the same)

2. -7/8 + -6/8 (add the numerators but keep the denominator the same)

3. -7 + -6 = -13

4. -13/8 (simplify)

5. -1 5/8

Which answer choice represents an equivalent number sentence of "15 + (3 - 8)"?
A. 15 - 5
B. 18 + 8
C. 10
D. 12 - 8

Answers

Answer:

A- 15-5 is the same

Step-by-step explanation:

15 + (3-8)

15 + (-5)

15-5

i believe the answer is C

PLEASE HELPPP!!!!!



Simplify: 22 + 8 ÷ (2 x 4)


10


5


8


4

Answers

Answer:

23

Step-by-step explanation:

2 +4 +5+400+888+953
what is it

Answers

The answer is 2,254!
The answer to this question is 2252

ANSWER FAST PLZZZZZZZWhich expression can be used to find the value of the expression below?

Answers

the answer is c

hope this helps

i think it’s C (-6/10)+2/8

Isabella has has 48 roses, 32 daisies, and 24 tulips. How many bouquets can she make if each boquet must have the same number of each flower and all flowers are used? This is an LCM problem. (least common multiple)

Answers

Answer:

96 is your answer

Step-by-step explanation:

mark brainliest

Answer:

8

Step-by-step explanation:

2 x 2 x 2 = 8

Q. You have 7 people in your work group. If you each worked 38 hours during last week, how many total hours were worked by the group? _____ hours

Answers

7x38=266 you have 266 total hours.
the total is 266 hours

Franklin is cooking a 3-pound turkey breast for 6 people. How many pounds of turkey will be needed for 8 people

Answers

Answer:

5 pounds of TuRkEy BrEaSt

Step-by-step explanation:

Answer: 4 pounds of turkey is needed to feed 8 people

Step-by-step explanation:

3 pounds = 6 people

1 pound = 2 people

so 3 lbs + 1 lbs = 8 people

4 pounds = 8 people

Math..................................

Answers

Answer is a. Tell me if this was right?
It’s either a or d :)

What is X?

I'm too lazy to do math today...

Answers

Answer:

x=10

Step-by-step explanation:

because since the objects are similar, you subtract 4 from 9 to get five. Then subtract 5 from 15.

Answer:

6 2/3

Step-by-step explanation:

Pablo wishes to grow his baseball card collection to at least 3000 cards. He currently has 1200 cards and knows that his favorite type of cards have 15 cards per package. Which inequality and solution represent the number of packages of cards that Pablo wishes to buy? Select TWO that apply.
A
p+1200≥3000p≥1800

B
15p+1200≥3000p≥120

C
1200+15p≥3000p≥280

D
3000≤1200+15p120≤p

E
3000≤1200+15p120≥p

F
3000≤15p+1200280≤p

Answers

Answer:

x-20  atleast right

Step-by-step explanation:

:)

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