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4 years ago

Evaluate the expression 3x – 2y+3) for x = 4 and

Mathematics

1 answer:

sineoko [7]4 years ago

6 0

Answer:

Step-by-step explanation:

3(4)-2(7)+3

12-14+3

-2+3

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What is the fraction for 33% decimal for 33%

svp [43]

$Question$

what is the fraction for 33%and the decimal for 33%?

Answer:

Your Answer Would Be $\frac{33}{100}$ For your Fraction And For your Decimal It Would Be 0.33

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3 years ago

How to solve variables on both sides of equation

MatroZZZ [7]

Answer:

isolate variable by adding or subtracting it on both sides.

Step-by-step explanation:

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3 years ago

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Answer:

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A store is selling a hat at a 55 percent markup. The store originally paid $16 for the hat. What is the retail price of the hat?

AleksandrR [38]

Set up the proportion of $ on one side and percents on other. You can put x for the retail value of the hat and 16 on the bottom. Then on the other side put the percentage of the added markup plus 100% which is the original price on the top over 100%. It should be something like x/16 = 155/100. The cross multiply. (x)(100) = 100x and (16)(155) = 2480. Then divide 2480 by 100 to isolate the x. Your final answer will be x = 24.80 which is the retail price.

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3 years ago

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I am sketching parabolas and my book is telling me that I need only two points. But I don't know how I am meant to sketch the pa

Sever21 [200]

Answer:

In order to sketch a parabola, one will typically use the y-intercept, the x-intercepts, and the vertex.

Step-by-step explanation:

In order to sketch a parabola, one will typically use the given equation in standard form, $y = ax^2 + bx + c$ , and:

The y-intercept – the point where the parabola crosses the vertical axis – by substituting 0 for all x values in the given equation and solving for y.
The x-intercepts – the points where the parabola crosses the horizontal axis – by setting the given equation equal to 0 (i.e., y = 0) and finding the factors (or roots).
The vertex – the point of symmetry where the parabola changes direction and curves up or down – by using $x=\frac{-b}{2a}$ to find the x-coordinate then plugging that value into the given equation to find the y-coordinate.

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3 years ago