MATHEMATICS
HIGH SCHOOL

Answer: Given that she waxes of the floor in . Thus in one hour she will wax

Answer:

Answer:

100/3

Step-by-step explanation:

HIGH SCHOOL

What is the difference between when a function is positive and when it is negative?

When thinking about reinforcement, always remember that the end result is to try to increase the behavior, whereas punishment procedures are used to decrease behavior. For positive reinforcement, try to think of it as adding something positive in order to increase a response.

MIDDLE SCHOOL

Following the Baltimore Running in 2009, volunteers collected and recycled 3.75 tons of trash. Graph 3.75 on a number line and write the weight as a mixed number

3 3/4 is the answer i think

Answer:

Step-by-step explanation:

3 3/4 is the answer

MIDDLE SCHOOL

How many dwarf planets are believed to be in the Kuiper belt? a) 1 (pluto)

b) 5

c) 100

d) 200

Answer: I don't see the choice here, but only 3 dwarf planets are officially recognized as dwarf planets in the Kuiper Belt: Pluto, Haumea, and Makemake. But, there are two more, Ceres and Eris, that are also named, but aren't widely known about.

I believe you could choose 5 (b) for this one.

Best of luck. :)

EDIT: The user took the quiz and the answer was somehow 200.

HIGH SCHOOL

since my uncles farmyard appears to be overrun with dogs and chickens. i asked him how many of each he had. he responded that his dogs and chickens had a total of 148 legs and 60 heads. how many dogs and chickens are there on my uncles farm?

Assuming that all the animals are dogs, the number of legs there are would be 240.

60*4=240 legs

240-148=92 legs

All the 92 legs belong to the chickens, so there are 46 chickens.

Since there are 46 chickens,

60-46=14 dogs

60*4=240 legs

240-148=92 legs

All the 92 legs belong to the chickens, so there are 46 chickens.

Since there are 46 chickens,

60-46=14 dogs

HIGH SCHOOL

Mr. Curtis built a toolbox for each of his four sons. He as $50 to spend to equip each box. He plans to purchase up to 5 items for each box, and all four boxes must have the same tools.

Answer:

Curtis needs to determine the relative densities of four different liquids. He measures the volume of each liquid using a graduated cylinder, and measures the mass of each liquid using a balance. Then he records the measurements in the table below.

Mass (grams)

Volume (ml)

Liquid A

11.8

15.5

Liquid B

17.3

29.8

Liquid C

15.7

19.4

Liquid D

21.4

27.5

so it has to be liquid B

Step-by-step explanation:

HIGH SCHOOL

Lauren is shopping and finds 6 bracelets, 2 pairs of earrings, and 3 necklaces that she likes. How many ways can Lauren select 4 pieces of jewelry to buy?

There are 330 ways can Lauren select 4 pieces of jewelry to buy.

What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

Lauren is shopping and finds 6 bracelets, 2 pairs of earrings, and 3 necklaces that she likes.

Now, We have;

Total number of jewelry = 6 + 2 + 3 = 11

Hence, Number of ways can Lauren select 4 pieces of jewelry to buy is,

⇒ ¹¹C₄

⇒ 330

Thus, There are 330 ways can Lauren select 4 pieces of jewelry to buy.

Learn more about the mathematical expression visit:

brainly.com/question/1859113

#SPJ3

Because it does not specify that she has to choose one or two from each category all pieces of jewelry can be treated as choices in a combination set.

the formula for a combination is

where n is a total number of choices ( 11 )

and r is number chosen out of those choices (4)

so

C(11,4)= \frac{11!}{4!(11-4)!}

She has 330 possible choices to come home with 4 pieces of jewelry

the formula for a combination is

where n is a total number of choices ( 11 )

and r is number chosen out of those choices (4)

so

C(11,4)= \frac{11!}{4!(11-4)!}

She has 330 possible choices to come home with 4 pieces of jewelry

HIGH SCHOOL

Which of the following statements is not correct? Every rectangle is a parallelogram.

Every square is a parallelogram.

Every rhombus is a parallelogram.

Every parallelogram is a rectangle.

That the last one

A parallelogram is not always a rectangle

A parallelogram is not always a rectangle

MIDDLE SCHOOL

sam makes some bread rolls. He gives 2/5 of the bread rolls to his neighbor and 4/9 of the remainder to his cousin. He has fifteen bread rolls left. How many bread rolls does Sam make

Neighbor: 2/5(x)

Remainder = x - 2/5(x) = 3/5(x)

Cousin = 4/9 * 3/5(x) = 4/15(x)

x - 2/5(x) - 4/15(x) = 15

x - 6/15(x) - 4/15(x) = 15

x - 10/15(x) = 15

(15x - 10x) = 225

5x = 225

x = 225/5 = 45

Therefore, he made 45 rolls

Remainder = x - 2/5(x) = 3/5(x)

Cousin = 4/9 * 3/5(x) = 4/15(x)

x - 2/5(x) - 4/15(x) = 15

x - 6/15(x) - 4/15(x) = 15

x - 10/15(x) = 15

(15x - 10x) = 225

5x = 225

x = 225/5 = 45

Therefore, he made 45 rolls

COLLEGE

A snack bar sells two sizes of snack packs. A large snack pack is $5, and a small snack pack is $3. In one day, the snack bar sold 60 snack packs for a total of $220. how many small snack packs did the snack bar sell?

Total number of snacks = 60

Total earnings = $220

Assumed all that are sold are small snacks = 60 x 3 = $180

The difference in earnings = 220 - 180 = $40

The difference in snack price = $5 - $3 = $2

Number of Large snacks = $40 ÷ 2 = 20

Number of small snacks = 60 - 20 = 40

Answer: 20 large snacks and 40 small snacks

Total earnings = $220

Assumed all that are sold are small snacks = 60 x 3 = $180

The difference in earnings = 220 - 180 = $40

The difference in snack price = $5 - $3 = $2

Number of Large snacks = $40 ÷ 2 = 20

Number of small snacks = 60 - 20 = 40

Answer: 20 large snacks and 40 small snacks