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3 years ago

2(3w+9z) simplify it please .

Mathematics

2 answers:

KATRIN_1 [288]3 years ago

8 0

Answer:

6w + 18z

Step-by-step explanation:

distribute the 2

2 x 3w = 6w

2 x 9z = 18 z

6w + 18z

Sholpan [36]3 years ago

7 0

Answer:

6w+18z

Step-by-step explanation:

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5) The scale of a map is 1 inch : 10 miles.

stich3 [128]

Answer:

Step-by-step explanation:

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3 years ago

3x + ky = 8

sattari [20]

Answer:

(a): x is 3 and ky is -1

(b): k is -2

Step-by-step explanation:

Let: 3x + ky = 8 be equation (a)

x - 2 ky = 5 be equation (b)

Then multiply equation (a) by 2:

→ 6x + 2ky = 16, let it be equation (c)

Then equation (c) + equation (b):

${ \sf{(6 + 1)x + (2 - 2)ky = (16 + 5)}} \\ { \sf{7x = 21}} \\ { \sf{x = 3}}$

Then ky :

${ \sf{2ky = 3 - 5}} \\ { \sf{ky = - 1}}$

${ \bf{y = \frac{1}{2} }} \\ { \sf{ky = - 1}} \\ { \sf{k = - 2}}$

4 0

3 years ago

How much dirt is in a hole 5 feet wide, 2 feet long, and 3 feet deep?

Veseljchak [2.6K]

Answer:

30 ft of dirt.

Step-by-step explanation:

We want to know the volume, or the capacity, of the hole.

The formula for volume is to multiply the length, width, and height.

l x w x h

2 x 5 x 3 = 30

So there is 30 ft of dirt in the hole.

plz mark brainliest if this helped :)

5 0

3 years ago

Read 2 more answers

X x=?1 612 21 6V2 Can someone please help

Romashka-Z-Leto [24]

Answer:

612

Step-by-step explanation: Im guessing ran out of time

7 0

3 years ago

Helppp plzzzz N+5n=

ankoles [38]

I’m pretty sure it’s 6n

3 0

3 years ago