3 years ago

5(3y - 1) - 3(2y) = 19

Mathematics

1 answer:

telo118 [61]3 years ago

6 0

Answer: 24/9

Step-by-step explanation:

5(3y-1)-3(2y)=19

Remove brackets by multiplying

15y-5-6y=19

Add 5 on both sides and subtract the like term of y

9y=24

Divide both sides by 9

y=24/9

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3 years ago

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weqwewe [10]

Answer:

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Step-by-step explanation:

Parallel lines have the same slope so slope is -3/2

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2 years ago

3. Find f[h(a+4)], given the functions below. *

mote1985 [20]

Answer:

C 5a^2 +70a +240

Step-by-step explanation:

We have given these following functions:

$f(x) = 5x, g(x) = -2x + 1, h(x) = x^2 + 6x + 8$

h(a+4)

This function is:

$h(a+4) = (a+4)^2 + 6(a + 4) + 8$

$h(a+4) = a^2 + 8a + 16 + 6a + 24 + 8$

$h(a+4) = a^2 + 14a + 48$

f[h(a+4)]

$f(x) = 5x$

Thus

$f(h(a+4)) = f(a^2+14a+48) = 5(a^2 + 14a + 48) = 5a^2 + 70a + 240$

The correct answer is given by option C.

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3 years ago

A piece of pie costs .10 and a cup of coffee costs .5. How much will 40 pieces of pie and 20 cups of coffee cost?

dybincka [34]

One pie costs 0.10
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$4 + $10 = $14

It costs $14 to buy 40 pieces of pie and 20 cups of coffee

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3 years ago

5(3y - 1) - 3(2y) = 19​

5(3y - 1) - 3(2y) = 19