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2 years ago

Estimate to determine if the answer is a realistic solution. 1.8 times 16.5 equals 29.7

1 answer:

7 0

One possible way of estimating an answer to see if it is a realistic solution is rounding up/down numbers with decimals so you can easily guess!

For example, in this problem, lets round 1.8 up to 2 and 16.5 up to 17.

2 × 17 = 34

34 is not that far from 29.7 !

So, we can say that 29.7 is a realistic solution considering the inclusions of decimals.

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A wooden rod of 5 m 75 cm was cut into 5 equal pieces. What is the length of each piece.

hram777 [196]

We have: 5m 75cm = 5.75 m

So the length of each piece is : $l = \frac{5.75}{5} =1.15$

ok done. Thank to me :>

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3 years ago

What number is the same as 3 tens and 12 ones.

Arlecino [84]

Answer:

42 because 3 tens is 30 and 12 ones is 12. so you do 30 + 12 = 42

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3 years ago

Read 2 more answers

Evaluate the following (1.6 x 10 12) ÷ (8.01 x 10 23)

devlian [24]

To evaluate the given expression, we must follow the rules of PEMDAS (Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction) in solving.

Therefore, first calculate what's inside the parentheses:

(1619.2) / (8194.23)

Then perform the operation in between the parentheses:

(1619.2) / (8194.23) = 0.20

Therefore the answer after evaluating the expression is 0.20.

I hope my answer has come to your help. Thank you for posting your question here in Brainly.

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3 years ago

You saved $300 to spend over the summer. You decide to budget $50 to spend each week.

Oduvanchick [21]

Answer:

Part c)

The Slope of the line is: m=-50 and represents the amount of money spent per week.

Part d)

The y-intercept is: c=300 and represents the maximum money we have that can be spend over the weeks (i.e. our maximum budget alowed).

Step-by-step explanation:

To solve this question we shall look at linear equations of the simplest form reading:

$y = mx+c$ Eqn(1).

where:

$y$ : is our dependent variable that changes as a function of x

$x$ : is our independent variable that 'controls' our equation of y

$m$ : is the slope of the line

$c$ : is our y-intercept assuming an $x$ ⇔ $y$ relationship graph.

This means that as $x$ changes so does $y$ as a result.

Given Information:

Here we know that $300 is our Total budget and thus our maximum value (of money) we can spend, so with respect to Eqn (1) here:

$c=300$

The budget of $50 here denotes the slope of the line, thus how much money is spend per week, so with respect to Eqn (1) here:

$m=50$

So finally we have the following linear equation of:

$y= - 50x + 300$ Eqn(2).

Notice here our negative sign on the slope of the line. This is simply because as the weeks pass by, we spend money therefore our original total of $300 will be decreasing by $50 per week.

So with respect to Eqn(2), and different weeks thus various $x$ values we have:

Week 1: $x=1$ we have $y= -50 *1 + 300 = -50 +300 = 250$ dollars.

Week 2: $x=2$ we have $y= -50 *2 + 300 = -100 +300 = 200$ dollars.

Thus having understood the above we can comment on the questions asked as follow:

Part c)

The Slope of the line is: $m=-50$ and represents the amount of money spent per week.

Part d)

The y-intercept is: $c=300$ and represents the maximum money we have that can be spend over the weeks (i.e. our maximum budget alowed).

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3 years ago

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Tresset [83]

Answer: Tracking is the practice of putting students into specific curriculum groups based on their test scores and other factors.

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4 years ago