MATHEMATICS MIDDLE SCHOOL

Describe a real life multiplication situation for which an estimate makes sense

Answers

Answer 1
Answer: If 7 people have 5 cats each but two people have only 4 cats how many cats are total. Estimate how many cats would be total if 3 more people came along with 2 cats each.

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MIDDLE SCHOOL

Is 90ft bigger than 32 yards

Answers

No, 90 feet is NOT bigger than 32 yards.

An easy way to solve this is to convert feet to yards, or vice versa.

1 yard = 3 feet 

32 × 3 = 96 feet

Now, put that into the problem and try and solve it.
Is 90 feet bigger than 96 feet? The answer is NO because 90 < 96.
What you have to do to figure this out is do 32×3, because one yard is equal to 3 feet, your answer would be 96 feet, so no, 90 feet is smaller than 32 yards.
HIGH SCHOOL

The slope of a line is represented by the variable _____. X y m b

Answers

Answer:

Option (c) is correct.

The slope of a line is represented by the variable 'm'

Step-by-step explanation:

Given : The slope a line

We have to choose which variable is used to represent the slope of a line.

Since, the general equation of line is represented by the equation

y = mx + c ,

where m is slope

and c is y intercept.

So , we represent the slope of line by the variable 'm'

Thus, The slope of a line is represented by the variable 'm'

M is the slope. - X is an independent variable. Y is a dependent variable. B is the where the line crosses the Y-axis.
MIDDLE SCHOOL

Jude puts 6 lemons in bag. If he has 170 lemons how many will be left over

Answers

2 will be left over The largest multiple of 6 which is less than or equal to 170 is 168
and 170−168=2
170-6=164 that is the answer.
COLLEGE

What is the most plausible value for the correlation between spending on tobacco and spending on alcohol? 0.99 − 0.50 −0.50 0.80 0.08

Answers

Answer:

Option c) 0.80        

Step-by-step explanation:

We have to approximate the most possible correlation between spending on tobacco and spending on alcohol.

  • Correlation is a technique that help us to find or define a relationship between two variables.
  • A positive correlation means that an increase in one quantity leads to an increase in another quantity
  • A negative correlation means with increase in one quantity the other quantity decreases.
  • Values between 0 and 0.3 tells about a weak positive linear relationship, values between 0.3 and 0.7 shows a moderate positive correlation and a correlation of 0.7 and 1.0 states a strong positive linear relationship.
  • Values between 0 and -0.3 tells about a weak negative linear relationship, values between -0.3 and -0.7 shows a moderate negative correlation and a correlation value of of -0.7 and -1.0 states a strong negative linear relationship.

a) 0.99

This shows almost a perfect straight line relationship between spending on tobacco and spending on alcohol. Thus, this cannot be the right correlation as the relationship between spending on tobacco and spending on alcohol is not so strong.

b)-0.50

This shows a negative relation between spending on tobacco and spending on alcohol which cannot be true as they share a positive relation.

c) 0.80

This correlation shows a strong positive correlation between spending on tobacco and spending on alcohol which is correct because the relationship between spending on tobacco and spending on alcohol is positive

d)0.08

This correlation shows a very weak positive correlation between spending on tobacco and spending on alcohol which cannot be true.

MIDDLE SCHOOL

(x+1)(2x-4)(1/x+1) = (x+1)(2x-4)(1-5/2x-4)

Answers

Solution:

Answer:

Hope this was helpful.

HIGH SCHOOL

Solve the system of linear equations below.

6x + 3y = 33
4x + y = 15

Answers

After solving the linear equations below, I’ve come up with the answer x = 2 and y = 7. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.

Answer: The solution is,

x = 2, y = 7

Step-by-step explanation:

Given system of equations,

6x + 3y = 33  -------(1)

4x + y = 15 ----------(2),

Equation (1) - 3 × equation (2),

We get,

6x - 12x = 33 - 45

-6x = - 12

⇒ x = 2,

Substituting this value in equation (2),

4(2) + y = 15

8 + y = 15

⇒ y = 7,

Hence, the solution of the given system of equation is,

x = 2, y = 7

HIGH SCHOOL

Which of the following points is a solution of the inequality y > -2x + 5? (1 ,4)
(0 ,5)
(-2, 8)
(1, -2)

Answers

A way to find a solution for this inequality is by plugging in each point.
(1,4)
Hope this helps
MIDDLE SCHOOL

Compare the decimals 56.07 and 56.7

Answers

The compares are that they both are 56 but the differents is that the 56.07 is lower then 56.70

MIDDLE SCHOOL

How do you write 680,705 in expanded form??

Answers

Hello!

The expanded form is:

600,000 + 80,000 + 700 + 5


Toodles~

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