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3 years ago

Help please............

Mathematics

1 answer:

cluponka [151]3 years ago

4 0

3x + 6y= 18
3x= -6y + 18
x= -2y + 6
The answer is A. 6- 2y

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You do parenthesis first right? And then do division?

IrinaK [193]

Yes. Parenthesis first, then if any exponents, then multiplication or division, then addition and subtraction. PEMDAS.

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3 years ago

Read 2 more answers

Solve the x <br> 1/3x + 5> 10

kotykmax [81]

Answer:

The solution to the inequality is:

$\frac{1}{3}x+5>10\quad :\quad \begin{bmatrix}\mathrm{Solution:}\:&\:x>15\:\\ \:\mathrm{Interval\:Notation:}&\:\left(15,\:\infty \:\right)\end{bmatrix}$

The solution graph is also attached below.

Step-by-step explanation:

Given

We are given the expression

$\frac{1}{3}x+5>10$

To determine

Solve for x

Given the expression

$\frac{1}{3}x+5>10$

Subtract 5 from both sides

$\frac{1}{3}x+5-5>10-5$

Simplify

$\frac{1}{3}x>5$

Multiply both sides by 3

$3\cdot \frac{1}{3}x>5\cdot \:3$

Simplify

$x>15$

Thus, we conclude that:

$x>15$

Therefore, the solution to the inequality is:

$\frac{1}{3}x+5>10\quad :\quad \begin{bmatrix}\mathrm{Solution:}\:&\:x>15\:\\ \:\mathrm{Interval\:Notation:}&\:\left(15,\:\infty \:\right)\end{bmatrix}$

The solution graph is also attached below.

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3 years ago

An adult sleeps about 480 per day. In infant sleeps about 820 minutes per day. About how many more minutes does an infant sleep

AysviL [449]

(820*7)-(480*7)=? This is how to solve the equation

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3 years ago

Approximately 7.5 × 10^5 gallons of water flow over a waterfall each second. There are 8.6 × 10^4 seconds in one day. Approximat

tino4ka555 [31]

Answer:

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2 years ago

Write a function rule for “The output is 6 more than five times the input.” Use x for the independent variable and y for the dep

Svetradugi [14.3K]

Answer:

y=5x+6

Step-by-step explanation:

+6 is six more than.

5x is five times the input.

For example, let's say x=3. you gotta multiply first so you can get the five times out of the way. 3×5=15. Now we got to add six because "6 more than" means to add six. so, 15+6=21. I plugged in 21 for y to check and I got x=3, so this works.

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2 years ago