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3 years ago

7

I am the largest number that rounds to 241.699 when rounded to the nearest thousandth. What number am I? Please explain how you

did it im stumped

1 answer:

jolli1 [7]3 years ago

5 0

240 hope that works sry I don't really know I need points

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Y=2x y=-1/2x+5 system of equations

dalvyx [7]

Answer:

<em><u>x=2, y=4</u></em> (as a point,) (2, 4) (last part is unnecessary unless you are graphing)

Step-by-step explanation:

Use substitution.

Substitute y for 2x.

Since y=2x, you can plug 2x into the place where y goes...

Instead of y=-1/2x+5

2x=-1/2x+5....Now solve

2.5x=5 (Sorry my computer cannot type fractions very clearly)

/2.5 /2.5 (dividing by 2.5 on both sides)

<u><em>x=2</em></u>

Now just plug x into any of the equations to find y (preferably the easier one).

y=2x becomes

y=2*(2)

=4

<em><u>y=4</u></em>

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3 years ago

Charlotte is running at a race of 9 km/h.<br><br> What is Charlotte’s speed in m/s?

Novay_Z [31]

Answer:

9,000

Step-by-step explanation:

1 km=1,000

9*1,000=9,000

7 0

3 years ago

Find the slope of the line that passes through (4,2) and (9,1)?

pshichka [43]

Answer:

The slope of the line is $\displaystyle -\frac{1}{5}$ .

Step-by-step explanation:

We are given two coordinate points:

$(4, 2)$
$(9, 1)$

We are asked to find the slope of the line.

We can use the rise-over-run formula to solve for the slope of the line.

$\displaystyle \text{slope} = \frac{\text{rise}}{\text{run}}\\\\\text{slope} = \frac{y_2-y_1}{x_2-x_1}$

However, we firstly need to name our coordinate points.

In math, we can label our coordinates using the following label system:

$(x_1, y_1), (x_2, y_2)$

Therefore, we can also label our coordinates as such:

$x_1 = 4$
$y_1 = 2$
$x_2 = 9$
$y_2 = 1$

Now, we can supply these values into the formula and solve for our slope, or a better known variable, <em>m</em>.

$\displaystyle m = \frac{1 - 2}{9 - 4}\\\\m = \frac{-1}{5}\\\\m = -\frac{1}{5}$

Therefore, our slope is $\displaystyle -\frac{1}{5}$ .

8 0

3 years ago

Read 2 more answers

In the diagram, AB=18. find AC and BC

LuckyWell [14K]

Answer:

b

Step-by-step explanation:

In a 30-60-90 right triangle, the hypotenuse is twice the length of the short leg.

The hypotenuse is AB and is 18.

The short leg is BC and is 9.

The only choice with BC = 9 is b.

Answer: b

3 0

2 years ago

Solve the system <br><br><br> x - 2y = -6<br> 3x + y = -4

stepan [7]

{x-2y=-6

{3x+y=-4 /*2

{x-2y=-6

<u>{6x+2y=-8 </u> (+)

7x=-14 /:7

x=-2

3x+y=-4

3*(-2)+y=-4

-6+y=-4

y=2

Solution: (-2; 2)

5 0

3 years ago