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3 years ago

3 x+1 ------- + --------------- 92−64 152−7−40

Mathematics

1 answer:

RSB [31]3 years ago

4 0

Answer:

Step-by-step explanation:

$\frac{3x + 1}{28} + \frac{}{105} \\ \frac{105(3x + 1)}{2940} + \frac{28}{2940} \\ \frac{3x + 1}{28} + \frac{1}{105}$

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-1+5x≥-16 I dont know how to solve

olasank [31]

Answer: $x \ge -3$

Explanation:

Follow PEMDAS in reverse to undo what's happening to x.

We first add 1 to both sides, then divide both sides by 5 to fully isolate x.

Refer to the steps below to see what I mean.

$-1 + 5x \ge -16\\\\5x \ge -16+1\\\\5x \ge -15\\\\x \ge -15/5\\\\x \ge -3\\\\$

The inequality sign stays the same the entire time. The only time it flips is when you divide both sides by a negative number.

The solution set for x is anything -3 or larger.

If x was an integer, then we could say the solution set is {-3, -2, -1, 0, 1, 2, 3, 4, 5, 6, ...}

7 0

2 years ago

9 3/4 - 1 1/4 in simplest form

Kipish [7]

8 1/2 would be the answer to this question

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4 years ago

An antique store increases all of its prices by $40\%$, and then announces a $25\%$-off-everything sale. What percent of the ori

Mandarinka [93]

Answer:

105%

Step-by-step explanation:

We'll analyse the question one step at a time

Let the original price be x.

Let y be the 40% increase

$y =x + 40\% *x$

Express as decimal

$y =x + 0.40 x$

$y =1.40x$

Let z be the 25% off sale

$z = (1 - 25\%) * y$

Express as decimal

$z = (1 - 0.25) * y$

$z = (0.75) * y$

$z = 0.75y$

Substitute 1.40s for y

$z = 0.75*1.40x$

$z = 1.05x$

Express 1.05 as a fraction

$z = 105\% * x$

<em>The percentage is 105%</em>

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3 years ago

Use this tax table to find how much tax you need to pay on a taxable income of $40,000.

Savatey [412]

A

40,000-31,850= 8,150times .25= 2,037.50

4,386.25+2,037.50= $6,423.75

4 0

3 years ago

Read 2 more answers

Compute 4.659×104−2.14×104. Round the answer appropriately.

iogann1982 [59]

Answer:

261.98 is the value of the given expression.

Step-by-step explanation:

We have to find the value of the following expression:

$4.659\times 104 - 2.14\times 104$

Using the associative property, we can write and solve the given expression as:

$(4.659 - 2.14)\times 104\\=2.519\times 104\\=261.976$

Rounding off the answer, we get,

$261.976\approx 261.98$

Thus, 261.98 is the value of the given expression.

3 0

4 years ago