2 years ago

Comewe ID 990 3833 4019 Ps 6u1mWA

Mathematics

1 answer:

Svet_ta [14]2 years ago

7 0

Answer:

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Katie walked a total of 68 kilometers by making 34 trips to school. How many trips will Katie have to make in all to walk a tota

ZanzabumX [31]

Find the distance of each trip:

68 km / 34 trips = 2 km per trip

Divide total distance by distance per trip:

348 km / 2 km per trip = 174 trips

Answer: 174 trips

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3 years ago

Solve. -1/2 + (3/4 x 4/9)

max2010maxim [7]

-0.16666666666 which equals -1/16.

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3 years ago

What are the Horizontal and vertical shift of <br> y = x+2-3

Nana76 [90]

If the equation is y=(x+2)-3 then the shifts are
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2 years ago

Help with 21 would be much appreciated.

umka2103 [35]

Answer:

$\large\boxed{x=2\sqrt{21}\ and\ y=4\sqrt3}$

Step-by-step explanation:

Look at the picture.

ΔADC and ΔCDB are similar. Therefore the sides are in proportion:

$\dfrac{AD}{CD}=\dfrac{CD}{DB}$

We have

$AD=14-8=6\\CD=y\\DB=8$

Substitute:

$\dfrac{6}{y}=\dfrac{y}{8}$ <em>cross multiply</em>

$y^2=(6)(8)$

$y^2=48\to y=\sqrt{48}\\\\y=\sqrt{16\cdot3}\\\\y=\sqrt{16}\ cdot\sqrt3\\\\\boxed{y=4\sqrt3}$

For x use the Pythagorean theorem:

$x^2=6^2+(4\sqrt3)^2\\\\x^2=36+48\\\\x^2=84\to x=\sqrt{84}\\\\x=\sqrt{4\cdot21}\\\\x=\sqrt4\cdot\sqrt{21}\\\\\boxed{x=2\sqrt{21}}$

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2 years ago

A STERO is was priced for $75. If this is a 15% increase was is the new price?

Delicious77 [7]

Answer:

75+75×15/100=75+11.25=86.25$

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2 years ago

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