Prove x×y=y×z then x=y when z doesn't equal 0

1 answer:

3 0

X = y
x times y = y times z

we can use the number 2 for x
x=2
y=2

2 x 2 = 2 x z
4 = 2z

divide both sides by 2

2 = z

So, x=y=z=2 they are the same value no matter what number is used.

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Solve for d.<br> d + 67 = 87<br> р<br> Submit

Vsevolod [243]

Answer:

$d=20$

Step-by-step explanation:

$d+67=87$

Subtract 67 from both sides

$d=20$

Hope this is helpful

7 0

3 years ago

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Un edificio proyecta una sombra de 7.5m.mientras que un arbol que mide 1.6 m de altura proyecta una sombra 1.85 M¿Cual es la alt

sattari [20]

Answer: The height of the building is 6.49 meters.

Step-by-step explanation:

This can be translated to:

"A building projects a 7.5 m shadow, while a tree with a height of 1.6 m projects a shadow of 1.85 m.

Which is the height of the building?"

We can conclude that the ratio between the projected shadow is and the actual height is constant for both objects, this means that if H is the height of the building, we need to have:

(height of the building)/(shadow of the building) = (height of the tree)/(shadow of the tree)

H/7.5m = 1.6m/1.85m

H = (1.6m/1.85m)*7.5m = 6.49m

The height of the building is 6.49 meters.

5 0

3 years ago

Help plz

bixtya [17]

Answer:

Triangle 1 has the most area

Step-by-step explanation:

Because triangle has more whole blocks and also sides