3 years ago

8x + 4y = 24

1 answer:

nataly862011 [7]3 years ago

7 0

You would need to multiple ether the bottom or top equation to get -4y then from there put everything together and y will be eliminated

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The length of a rectangle is 4 meters less than three times its width. Its area is 319 square meters. What are the dimensions of

Bumek [7]

Answer:

length =29m width =11m

Step-by-step explanation:

length---L

width -----W

L=3W-4

area=319sqm

area of rectangle=L × W

area of rectangle =W ×(3W - 4)=319

expanding...

3W^2 - 4W=319

3W^2 - 4W -319=0

factorize

(W-11)(3W+29)=0

W=11 or -29/3

using the positive because the negative width with a minus sign does not make sense in real life, we use 11m

width =11m

length 3W -4=3(11) -4 =29m

7 0

3 years ago

Find the length of the line segment displayed below. Round your answer to the nearest hundredth (2 decimal places)

svlad2 [7]

Answer:

AB=5.83

Step-by-step explanation:

Distance Formula=

$\sqrt{(x2 - x1)^{2} - (y2 - y1)^{2} }$

Plugging our values in, we get:

$\sqrt{(7 - 2)^{2} + (4 - 1)^{2} }$

And if we solve it like this:

$\sqrt{25 + 9}$

We end up with:

$\sqrt{34}$

Which is about 5.83

8 0

3 years ago

Amanda is on the swim team. Each week she swims a total of 6000 meters. How many kilometers does she swim each week ?

Alex17521 [72]

Answer: 6 Kilometers

Step-by-step explanation:

1 kilometer = 1000 meters

6 kilometers=6000 meters

6 x 1000=6000

8 0

3 years ago

0.13391963118/17(3.78)

erma4kov [3.2K]

Answer:

Simplify the expression.

0.02977742

Step-by-step explanation:

i think i hope its right

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3 years ago

3/4x8/9 as simpiest form

anyanavicka [17]

Answer:

2/3

Step-by-step explanation:

3/4 x 8/9 = 24/36 or 2/3 simplified

3 0

3 years ago