All categories

3 years ago

Please help!!! I dont know how to do this!!please

Mathematics

1 answer:

kolbaska11 [484]3 years ago

3 0

1.
3n + 5 = 6
3n = 6 - 5
3n = 1
n = 1/3

2.
4 + 5x = 1
5x = 1 - 4
5x = -3
x = -3/5

3.
4y - 15 = -10
4y = -10 + 15
4y = 5
y = 5/4

4.
3 - 4d = 13
-4d = 13 - 3
-4d = 10
d = -10/4
d = -5/2

5.
8 = 9x - 7
8 + 7 = 9x
15 = 9x
15/9 = x
5/3 = x

hope this helped, God bless!

You might be interested in

What is 4 1/5+3 1/10 a. 7 2/15 b. 7 3/10 c. 7 1/5 d. 7 1/50

Black_prince [1.1K]

7 1/5th is the anwser but thats easy your just being lazy i think

7 0

3 years ago

Sam wants to tip his uber driver 20%, if his cost for the commute is $15. What will his TOTAL be with tip?

kolezko [41]

Answer:

$18.00

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

What is the quotient of 8,187 ÷ 24?

adell [148]

Answer:

341.125

Step-by-step explanation:

8187/24

341.125

7 0

2 years ago

Simply the ratio 15 seconds to 3 minutes?

Umnica [9.8K]

To simplify the ratio. You have to find both of these numbers Greatest common factor. Which happens to be 3 :P

So divide each number by 3
15 ÷ 3 = 5
---------------
3 ÷ 3 = 1

So this means our new simplified ratio is...
5 seconds to 1 minute.

Good Luck! :)

6 0

3 years ago

Can someone help me with this asap (algerbra)

nalin [4]

PEMDAS

Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS. PEMDAS is the order of operations, and stands for:

Parenthesis, Exponents (& Roots), Multiplication, Division, Addition, Subtraction.

First, divide 3 from both sides of the equation:

$\frac{(3x^2)}{3} = \frac{(48)}{3}$

$x^{2} = \frac{48}{3}\\ \\x^2 = 16$

Next, isolate the variable, x, by rooting both sides of the equation:

$\sqrt{x^{2} } = \sqrt{16}\\ x = \sqrt{16} = \sqrt{4 * 4}$

x = ±4

C) ±4 is your answer.

5 0

2 years ago