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2 years ago

Pls help I don’t get it

Mathematics

1 answer:

Setler [38]2 years ago

3 0

Answer:

x=-5, y=-2

Step-by-step explanation:

10x-9y=-32

2x-10y=10

(2x-10y)*5=10*5

10x-50y=50

(10x-9y)-(10x-50y)=-32-50

41y=-82

y=-82/2

y=-2

10x-9(-2)=-32

10x+18=-32

10x=-50

x=-5

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⚠️10 points⚠️

Lostsunrise [7]

Answer:

8.9

Step-by-step explanation:

The distance between each point is 8.9, hope this helps!

7 0

3 years ago

Find x and y. Give reasons to justify your solution. AB, CD, EF, and GH are straight lines.

8_murik_8 [283]

Answer:

X= 32 Y= 35

Step-by-step explanation:

We know FOB is parralel to AOE meaning x= 32

also, COH = 90 so GOD is also 90.

a straight angle is 180, so

23+90+x or 32= 145,

180-145=35,

y=35

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3 years ago

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8 = 4 w divided by 3

olya-2409 [2.1K]

8 = 4w/3

8 = 4w/3
×3 = 4w×3
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6 0

3 years ago

If a concrete mix contains 1-1/2 cubic feet of gravel, 1/2 cubic foot of water,

Karolina [17]

Answer:

The correct answer is "50%".

Step-by-step explanation:

The given values are:

Gravel,

= $(1-\frac{1}{2} )$

Water,

= $\frac{1}{2}$

Cement,

= 1

Sand,

= 2

Now,

The total mixture will be:

= $Gravel+Water+Cement+Sand$

By substituting the values, we get

= $(1-\frac{1}{2} )+\frac{1}{2} +1+2$

= $\frac{1}{2} +\frac{1}{2} +1+2$

= $4 \ cubic \ feet$

hence,

The percentage of sand will be:

= $\frac{Sand}{Total}\times 100$

= $\frac{2}{4}\times 100$

= $50$ %

3 0

2 years ago

3<br> Find the value of x.<br> 34°<br> o<br> 27°

lana [24]

Hi there! :)

$\large\boxed{x = 122^{o}}$

Recall that the sum of all angles in a triangle = 180°.

Therefore:

34° + 24° + x° = 180°

Combine like terms and subtract:

58° + x° = 180°

x = 180° - 58°

x = 122°

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2 years ago

Read 2 more answers