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Ivanshal [37]
3 years ago
15

Kate prepared 9 kilograms of dough after working 3 hours. How many hours did Kate work if she prepared 12 kilograms of dough? As

sume the relationship is directly proportional.
Mathematics
1 answer:
beks73 [17]3 years ago
3 0

Answer:

4 hours

Step-by-step explanation:

cross multiply

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A 13foot lader i upagenst a tree the bottom of the ladder is 5 feet away form the tree how high is the ladder on the tree
SCORPION-xisa [38]

Think of the 13-ft length of the ladder as the hypotenuse of a right triangle. Represent the horiz. distance from foot of ladder to base of tree by x, or 5 ft.

Represent the vert. dist. from base of tree to top of ladder by y, which is unknown.


Then (13 ft)^2 = (5 ft)^2 + y^2, or


169 ft^2 = 25 ft^2 + y^2. This simplifies to y^2 = 144. Thus y = + 12 feeet.


Note: Please pay attention to your spelling: "lader i up agenst a tree" should be "the top of a 13-ft ladder is placed against a tree."

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Step-by-step explanation:

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1/9 of people in a class are left handed.
LenaWriter [7]

Answer:

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Step-by-step explanation:

1 out of every 9 people are left handed

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That means 8 of the 9 are right handed

left handed: right handed

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Step-by-step explanation:

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