3 years ago

Can someone help please?

Mathematics

1 answer:

Pachacha [2.7K]3 years ago

4 0

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サムは妹のブリサの壁にマイケルジャクソンの写真を投稿しています。壁の面積は25です。底辺と高さはどれくらいですか？

alex41 [277]

Answer:

5 and 5

Step-by-step explanation:

Please mark brainliest

5 0

3 years ago

Find the product of 20x9x5 using distributed property?

aliina [53]

20•9=180
180•5=900
You have to brake down the problem to it simplest form

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4 years ago

If 2/x+ 3/y =13 and 5/x- 4/y = -2, then x+y equals

creativ13 [48]

Answer:

$x + y = \frac{5}{6}$

Step-by-step explanation:

Let:

$u = \frac{1}{x} \\ v = \frac{1}{y}$

This allows us to manipulate the equations like we normally would.

$2u + 3v = 13 \\ 5u - 4v = - 2 \\ \\ + 8u + 12v = 52 \\ + 15u - 12v = - 6 \\ 23u = 46 \\ u = 2 \\ \\ 2(2) + 3v = 13 \\ 4 + 3v = 13 \\ 3v = 9 \\ v = 3$

Then, we return the values where they belong.

$u = \frac{1}{x} \\ 2 = \frac{1}{x} \\ x = \frac{1}{2} \\ \\ v = \frac{1}{y} \\ 3 = \frac{1}{y} \\ y = \frac{1}{3}$

Finally, we add:

$\frac{1}{2} + \frac{1}{3} = \frac{3}{6} + \frac{2}{6} = \frac{5}{6}$

7 0

3 years ago

Expand Expression t( 3n + 4)

Free_Kalibri [48]

Answer:

=3tn+4t

hope it helps...

8 0

3 years ago

Read 2 more answers

6. Find the area shaded.

Rufina [12.5K]

Answer:

shaded area = total area - the two triangles areas

total area = 5*9 = 45 cm²

first tri area = 1/2 * h *b

= 0.5 * 5 * 2 = 5 cm²

second tri area = 0.5 * 6 * 5 = 15 cm²

shaded area = 45 - 15 - 5 = 25 cm²

7 0

3 years ago