3 years ago

Put the following equation of a line into slope-intercept form, simplifying all

Mathematics

1 answer:

Gennadij [26K]3 years ago

4 0

Answer:

y=4x-5

Step-by-step explanation:

-3y = -12x+15. y = (-12x+15)/(-3). y = (-12x/-3)+(15/-3). y = 4x-5.

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What is an equation of the line that is parallel to y=3x-8 and passes through the point (4,-5)

Anna [14]

Pareallell lines have same slope
y=mx+b, m=slope
y=3x-8 so we need
y=3x+b
find b

so given (4,-5)
we can subsitute the point
(x,y)
(4,-5)
x=4 then y=-5

so
-5=3(4)+b
-5=12+b
-17=b

y=3x-17 is equation
D is answer

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3 years ago

In a department store, a $190 phone is marked, "Save 15%."

MaRussiya [10]

Answer:

a- $28.50

b- $161.50

Step-by-step explanation:

multiply 190 and 0.15 and you get 28.5 subtract that from 190 and you get 161.5

Hope this helps!

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3 years ago

After 4 years, $3,006 deposited in a savings account with simple interest had grown to a total of $3,967.92. What was the intere

Lemur [1.5K]

Answer:

So interest rate is 8% per annum

Step-by-step explanation:

Principal amount = $3,006

Amount at end = $3,967.92

Time = 4yrs

interest money = ($3967.92 - $3006)

also equal to = 4 * (x/100) * $3,006

Where x is the interest rate per annum

So, 4 * (x/100) * $3,006 = ($3967.92 - $3006)

x = 8%

So interest rate is 8% per annum

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3 years ago

5. A negative number squared decreased by 7 times that number is 30. Find<br> the number

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Answer:

Step-by-step explanation:

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Answer:

<h2><u>Hakims car goes faster.</u></h2>

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Hakims car goes 600ft in 20 secs and andre's motorcycle goes 600ft in 24secs

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3 years ago

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