4 years ago

How can you show two objects are proportional with a table,graph, and a equation?

Mathematics

1 answer:

Over [174]4 years ago

4 0

See where the x and y axis cross on a graph

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Solve 3x − 5y = 20 15y = 9x − 60

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4 years ago

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6) Mrs. Hesabu has taken a loan of sh. 400,000 from Sweet

PIT_PIT [208]

Answer:

Step-by-step explanation:

If she was given a discount of 12% then the amount to be paid becomes I=P×R×T/100

I=400000×12×20/100

I=960000

Amount to be paid =I +P= 960000+400000=1360000

To liquidate this amount in 20 years therefore will be A÷20

1360000÷20

=68000 yearly

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4 years ago

Three times the square root of a number is the same as 4 less than the number. find the number

Tresset [83]

The problem is asking you to find x in this equation: 3×√x = x-4 I guessed and checked for this problem with numbers that were perfect squares like 4,9,16 etc. The number you are looking for is x=16 The square root of 16 is 4. 4x3=12 and 16-4 is 12.
Hope I helped!

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3 years ago

What percent of 72 is 9? 1/8% 1 1/4% 12 1/2% 125%

USPshnik [31]

Answer:

$12\dfrac 12\%$

Step by step explanation:

$\text{Let it be}~ x\%,\\\\~~~~~72 \cdot x \% = 9\\\\\\\implies 72\cdot \dfrac{x}{100} = 9\\\\\\\implies x = \dfrac{9 \times 100}{72}\\\\\\\implies x = \dfrac{100}{8}\\\\\\\implies x = \dfrac{25}2\\\\\\\implies x = 12 \dfrac 12\\\\\\\text{Hence 9 is}~ 12\dfrac 12\% ~ \text{of}~ 72$

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2 years ago

many elevators have a capacity of 2000 pounds, if a child averages 50 pounds and an adult averages 150 pounds, write an inequali

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$50x + 150y = 2000$

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3 years ago