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4 years ago

Factor: x2 - 14x = -48

Mathematics

1 answer:

Arturiano [62]4 years ago

3 0

Answer:

x = 12 and 2

Step-by-step explanation:

x^2 - 14x + 48 = 0

(x - 12)(x - 2) = 0

x = 12 x = 2

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6.4 ÷ 0.043<br><br> Round your answer to the nearest whole number.

lys-0071 [83]

Answer:

149

Step-by-step explanation:

6.4 ÷ 0.043

= 148.837209302

= 149 (rounded to the nearest whole number)

Hope this helped!

6 0

3 years ago

Read 2 more answers

A bicycle is originally priced at $80 . The store owner gives a discount and the bicycle is now priced at $60 . Enter the percen

Varvara68 [4.7K]

If the bike cost $80 and got it with a discount to $60 the answer is 20%

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3 years ago

4. Which of the following expressions represents the perimeter of the figure below?

Alexxx [7]

<h2>Explanation:</h2><h2 />

Hello! Remember you have to write complete questions in order to get good and exact answers. Here I'll help you assuming some things. First of all, for a two dimensional shape, the perimeter is defined as the distance around it. Suppose we have a rectangle whose dimensions are:

$l=4x+9 \\ \\ w=2x-19 \\ \\ \\ l:Length \\ \\ w:Width \\ \\ \\ \text{So the perimeter is:} \\ \\ P=2l+2w \\ \\ P=2(4x+9)+2(x-19) \\ \\ P=8x+18+2x-38 \\ \\ P=(8x+2x)+(18-38) \\ \\ \boxed{P=10x-20}$

So in this context:

Correct option is D. 10x - 20

8 0

4 years ago

A chemistry set costing $27.50, marked up 32% on cost.

GalinKa [24]

revenue- 36.30$ profit- 8.80$

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3 years ago

Read 2 more answers

if my grade in math is a 51.32% and I get at least a 70% on my test. What percentage will my grade go up too? ( test are worth 4

bazaltina [42]

Keeping in mind that 70% of anything is 70/100 * anything, thus

$\bf \begin{array}{ccll}
\stackrel{percentage}{points}&\stackrel{test}{completed}\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
45&1\\\\
x&\frac{70}{100}
\end{array}\implies \cfrac{45}{x}=\cfrac{1}{\frac{70}{100}}\implies \cfrac{45}{x}=\cfrac{\frac{1}{1}}{\frac{7}{10}}
\\\\\\
\cfrac{45}{x}=\cfrac{1}{1}\cdot \cfrac{10}{7}\implies \cfrac{45}{x}=\cfrac{10}{7}\implies \cfrac{45}{x}=\cfrac{10}{7}\implies \cfrac{45\cdot 7}{10}=x
\\\\\\
\cfrac{63}{2}=x\implies \boxed{31.5=x}$

so, you get that many percentage points, now... add that to 51.32.

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3 years ago