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2 years ago

Explain how you use estimation to check the reasonableness of a solution to a practical problem.

Mathematics

1 answer:

Oxana [17]2 years ago

3 0

Answer:

Well, one way to use reasonableness is to estimate the answer to see if your answer is an outrageous answer or not. So, looking at your problem, you see that you are multiplying a two hundred something number by 4 and then subtracting 10 from it.

Step-by-step explanation:

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What is 45.67 in expanded form? 40+5+0.6+0.07 or 40+0.5+0.06+0.007 or 40+5+0.6+0.007 or 4+5+0.06+0.007?

polet [3.4K]

It's right .
40+5+0.6+0.07

8 0

3 years ago

HELP ME OUT PLS!!!

Pavel [41]

Answer:

1,250 kg

Step-by-step explanation:

1,500/1.2 = 1,250

6 0

2 years ago

Read 2 more answers

Evaluate the expression \dfrac{x^5}{x^2} x 2 x 5 start fraction, x, start superscript, 5, end superscript, divided by, x, squa

Elza [17]

Answer:

Step-by-step explanation:

Fill in the variable value and do the arithmetic.

$\dfrac{2^5}{2^2}=\dfrac{32}{4}=8$

___

Of course, the fraction can be simplified first:

$\dfrac{x^5}{x^2}=x^{5-2}=x^3\\\\2^3=8$

7 0

2 years ago

Jack is looking to buy a soda at the store. He notices that a 20oz bottle of soda costs $1.20 and a 12 oz can of soda costs $0.8

aleksley [76]

Unit price = price / quantity

1.20 / 20 = 0.06 per ounce

0.85 / 12 = 0.071 per ounce

The better deal is the 20 oz for $1.20

5 0

3 years ago

Why does the equation y=3x+5 Not represent a proportional relationship?

Afina-wow [57]

Answer:

see the explanation

Step-by-step explanation:

we now that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $k=\frac{y}{x}$ or $y=kx$

In a proportional relationship the constant of proportionality k is equal to the slope m of the line <u><em>and the line passes through the origin</em></u>

In this problem we have

$y=3x+5$

This is the equation of the line in slope intercept form

where

$m=3\\b=5$

The given equation not represent a proportional relationship, because the line not pass through the origin

In a proportional relationship the value of b (y-intercept) is equal to zero

6 0

3 years ago