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3 years ago

How to solve word problems

2 answers:

kondor19780726 [428]3 years ago

8 0

First: Read the problem entirely.
Second: List information and variables you identify. add units of measure to tje variables.
Third: Define what the answer you are solving for is as well as the units of measurement applied.
Fourth: Work a neatly
Fifth: Look for the key words that let you know what exactly you are doing(-,+,/,*)

Lapatulllka [165]3 years ago

6 0

<span>Read the problem entirely.
Get a feel for the whole problem.
List information and the variables you identify.
Attach units of measure to the variables (gallons, miles, inches, etc.)
Define what answer you need, as well as its units of measure.
Work in an organized manner. ...<span>Look for the "key" words (above)</span></span>

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A digital scale reports a 10 kg weight as weighing 8.975 kg. Which of the following is true?

lara31 [8.8K]

Answer:

they are both true I guess. I just need points to get more answers. hopefully you find the right answer

3 0

2 years ago

A water balloon is 5 feet above the ground when Sally launches it into the air. Use the quadratic equation 0 = -t^2 + 4t + 5 to

rodikova [14]

Answer:

$t=5\ sec$

Step-by-step explanation:

we have

$-t^{2} +4t+5=0$

Solve the quadratic equation to find the zero's or x-intercepts

Remember that

The x-intercepts are the values of x when the value of y is equal to zero ( water balloon reach the ground)

we know that

The formula to solve a quadratic equation of the form $ax^{2} +bx+c=0$ is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$-t^{2} +4t+5=0$

$a=-1\\b=4\\c=5$

substitute in the formula

$t=\frac{-4(+/-)\sqrt{4^{2}-4(-1)(5)}} {2(-1)}$

$t=\frac{-4(+/-)\sqrt{36}} {-2}$

$t=\frac{-4(+/-)6} {-2}$

$t=\frac{-4(+)6} {-2}=-1$

$t=\frac{-4(-)6} {-2}=5$

therefore

the solution is $t=5\ sec$

7 0

3 years ago

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The sum of two numbers is 41. The larger number is one more than four times the smaller number. What are the numbers?

EleoNora [17]

Answer:

8+ 33

Step-by-step explanation:

8+33=41

8 (the smaller number) times 4 equals 32.

The number 33 is one more than 32.

Hope this helps!

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2 years ago

What is the slope of the passing through the points (4,6) and (-1, -2)

Likurg_2 [28]

$The\ slope:m=\dfrac{y_2-y_1}{x_2-x_1}\\------------------\\\\(4;\ 6)\to x_1=4\ and\ y_1=6\\(-1;-2)\to x_2=-1\ and\ y_2=-2\\\\subtitute\\\\m=\dfrac{-2-6}{-1-4}=\dfrac{-8}{-5}=\boxed{\frac{8}{5}}$

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3 years ago

Im confused about which one is correct

Travka [436]

Answer:

the one you have , the 3rd one

Step-by-step explanation:

8 0

3 years ago

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