3 years ago

4n+9=6 What is the value of n?

1 answer:

7 0

You would first subtract 9 and then then get 4n=-3 then you would divide by four and get -3/4 if you wanted to divide further you would get a decimal answer.

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One positive number exceeds three times another positive number by 5. The product of the two numbers is 68. Find the number

kati45 [8]

Answer:12

Step-by-step explanation:

Let the numbers be a and b

a-3b=5 ........equation (1)

There product is :

ab=68 ..........equation (2)

From equation (1)

a-3b=5

Make a the subject of the formula

a=5+3b. ........equation (3)

Substitute equation (3) into equation (2)

(5+3b)b=68

3(b^2)+3b-68=0

The product is -204b^2(17 and -12)

(b+17)(b-12)=0

b=-17 or b=12

So the number is 12

6 0

3 years ago

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Fiesta28 [93]

4 + y = 19

y = 19 - 4

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3 years ago

Adjacent and congruent to

Viefleur [7K]

To what ???? Was there supposed to be a picture?

7 0

3 years ago

matt rode his bike to the store by traveling 5 km east and the 3 km north. what distance (a) did he travel? and what was his dis

slamgirl [31]

A = 5 km is your distance it is how far he traveled.

b = 3 km is your displacement it's the length in which he when north.

8 0

3 years ago

Determine the slope of a line that passes through A(-4, 7) and B(6,3)

Helga [31]

Answer:

$m=\frac{-2}{5}$

Step-by-step explanation:

Use the formula:

$m=\frac{y_2-y_1}{x_2-x_1}$

Plug in the numbers (coordinates) given, like so:

$m=\frac{3-7}{6+4}$

$m=\frac{-4}{10}$

Simplify:

$m=\frac{-2}{5}$

7 0

3 years ago

Read 2 more answers

4n+9=6<br />What is the value of n?