3z+4+5z-9
Simply the expression

Answers

Answer 1

Answer: You would simply combine like terms
3z+4+5z-9
3z+5z=8z
4-9=-5
Put them together to get a final answer of: 8z-5 OR -5+8x also works :)

Answer 2

Answer: Combine like terms to simplify.

3z + 5z = 8z

4 - 9 = -5

8z - 5

Answer: 8z - 5

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What is the standard form of x + 4 -5x -2

Solve
In 2x + In 2=0

Answers

The solution to the equation log(2x) + log(2) = 0 is x = 1/4.

What is an expression?

An expression contains one or more terms with addition, subtraction, multiplication, and division.

We always combine the liketerms in an expression when we simplify.

We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.

Example:

1 + 3x + 4y = 7 is an expression.

3 + 4 is an expression.

2 x 4 + 6 x 7 – 9 is an expression.

33 + 77 – 88 is an expression.

We have,

Using the properties of logarithms,

We can simplify the given equation as follows:

log (2x) + log (2) = 0

Combining the logarithms using the product rule of logarithms.

log((2x)2) = 0

Simplifying inside the logarithm.

log(4x) = 0

Using the definition of logarithms,

We can rewrite this equation as:

$10^0$ = 4x

Simplifying the left side.

1 = 4x

Dividing both sides by 4,.

x = 1/4

Therefore,

The solution to the equation log(2x) + log(2) = 0 is x = 1/4.

Learn more about expressions here:

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Answer:

x=1/4 or x=0.25

Step-by-step explanation:

Charlene is looking at a pair of earrings that cost $10 find the total cost of the errands if there's a 15% discount in the sales tax is 8% does it matter if the discount is taken before or after the sales tax is added

Answers

So, let's try applying the discount before the sales tax first. Because it's a 15% discount, the earrings will be 85% of their original cost. (100 - 15 = 85). You can turn this percentage into a decimal (0.85) and multiply.

0.85 * 10 = 8.5.

Because we're working with money, this becomes $8.50. But we still need to add the sales tax. 8% can also be expressed as 0.08.

0.08 * 8.50 = 0.68.

So we add the sales tax, $0.68 to the discounted price of the earrings, $8.50.

$8.50 + $0.68 = $9.18.

Now let's try applying the sales tax first. 0.08 * 10 = 0.8

10 + 0.8 = 10.8. But again, we're working with money so this becomes $10.80.

Now we apply the discount. 0.85 * 10.80 = 9.18.

So whether you apply sales tax before the discount, or the discount before the sales tax, the cost of the earrings comes out to $9.18. It doesn't matter.

Ethan installs tiles on the floor of a room with a length of 14 feet and a width of 12 feet. It takes 9 hours to install the tiles in the room. What is the average speed at which Ethan can install the tiles? Round to the nearest tenth.