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3 years ago

Can someone please help me? SHOW ALL YPUR WORK PLEASE

Mathematics

2 answers:

xenn [34]3 years ago

8 0

It would take five tenths because of time so do 1/10 times 5 five tenths and for 2 problem it’s one half times ten which equals 100 because turn that into 20 good luck ask me more I will get you a 100 on that test

m_a_m_a [10]3 years ago

4 0

Answer:

50 seconds, 25 seconds longer

Step-by-step explanation:

Ⓗⓘ ⓣⓗⓔⓡⓔ

1) 5/0.1=5x10=50 seconds

2) It would take the cooter turtle 5/0.5=25 seconds

50 seconds-25 seconds=It would take the giant tortoise 25 seconds longer

(っ◔◡◔)っ ♥ Hope this helped! Have a great day! :) ♥

Please, please give brainliest, it would be greatly appreciated, I only need one more before I advance, thanks!

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Solve the equation: w^2+7w+12=0

polet [3.4K]

Hi there!
We are given the equation w² + 7w + 12 = 0, and we are told to solve it. Well, we can first take all the factors of 12 -
1 12
2 6
3 4
Now, take the sum of each factor pair -
1, 12 = 13
2, 6 = 8
3, 4 = 7
Find which factor pair adds up to 7, and we can see that 3 and 4 add up to seven, while also having a product of 12. Therefore, since the whole equation has addition signs, we can factor the equation w² + 7w + 12 into (w + 3)(w + 4) = 0. Next, using the Zero Product Property, we can set each term to zero.
w + 3 = 0
w = -3

w + 4 = 0
w = -4
Therefore, the solution to the equation w² + 7w + 12 = 0 is w = -3, -4. Hope this helped and have a great day!

7 0

3 years ago

Graph the linear equation. Find three points that solve the equation, then plot on the graph.

Illusion [34]

Answers:

Three points that solve the equation: $(1, \frac{19}{4} ) , (2, 5), (3, \frac{21}{4} )$

The graph is shown in the attached pictures.

NOTE: The first picture is the graph of the equation along with the plotted points, and the second one shows the work for those three points.

Step-by-step explanation:

1. To graph this equation, an easier way to do it would be to convert to slope-intercept form so we can graph knowing the y-intercept and the slope. Do this by isolating the y on the left side like so:

$x-4y=-18\\-4y = -x -18\\y = \frac{-x}{-4} -\frac{18}{-4} \\y = \frac{1}{4} x + \frac{9}{2}$

Remember that slope-intercept form is in y = mx + b format, and that m is the slope and b is the y-intercept. With this information, we know that (0, $\frac{9}{2}$ ) is the y-intercept and $\frac{1}{4}$ is the slope of this equation. We can plot the point (0, $\frac{9}{2}$ ) on the graph, and then use the slope of $\frac{1}{4}$ from there to graph other points and form a line. (When I graphed the line, I didn't include these "other points" so it wasn't confusing to locate which points were the three solutions listed.)

2. Points that solve an equation - or solutions - are also points that the line of the equation intersects. So, what we can do is form a table, plug in some x values into the equation, and solve for a y-value. The x and y values will form a point that is on the graph, thus they are solutions. (Please look at the second picture for work and clarification.) After identifying these points, just plot them on the graph and label them (as shown in the first picture).

8 0

3 years ago

Find the amount of the discount on a $234 item with a discount of 15%. A. $40.00 B. $23.40 C. $35.10 D. $35.01

Nady [450]

234 * 0.15 = 35.1

Your answer is C. $35.10.

6 0

3 years ago

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7/8 times 1 2/3 I need the work

BaLLatris [955]

$\frac{7}{8} * 1\frac{2}{3}$ can be rewritten as $\frac{7}{8} * \frac{5}{3}$ which is $\frac{7 * 5}{8* 3}$ , which simplifies into $\frac{35}{24}$ or $1\frac{11}{24}$ .

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3 years ago

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PLZ HLP ASAP!!<br> [9(14 + 16) • 2 – (8 • 4 + 12 • 9)] ÷ 40

lara [203]

$\frac{9(14+16)*2-(8*4+12*9)}{40} \\
\frac{(9*2)(14+16)-[(8*4)+(12*9)]}{40}\\
\frac{(18*30)-(32+108)}{40}\\
\frac{540-140}{40}\\
\frac{400}{40}\\
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So the expression is equal to 10.

3 0

4 years ago

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