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3 years ago

10

Jenny predicted that she would sell 12 bracelets, but she actually sold 16 bracelets. Which expression would find the percent er

ror? Use the table below to help answer the question

1 answer:

lawyer [7]3 years ago

7 0

Answer:

Start Fraction 4 over 16 End Fraction (100)

Step-by-step explanation:

Your Welcome;)

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Evaluate 2 ∙ (8 + 4) using the steps of order of operations.

Natalka [10]

Step-by-step explanation:

Follow PEMDAS

$2 ∙ (8 + 4)$

P: Parentheses

E : Exponents

M: Multiplication

D: Division

A: Addition

S: Subtraction

$2 \cdot \: (12) \\ = 2 \times 12 \\ 24$

Question 2

$15 + 6 \times 3 \\ 15 + (6 \times 3) \\ 15 + 18 \\ = 33$

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What is the expanded form for 600,000 + 80,000 + 10

svlad2 [7]

680,010 hope that helps

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Which equation can be used to find the volume of this solid?

valkas [14]

Answer:

the last one

Step-by-step explanation:

it's basically finding the area for a cube and then cutting it in half, so multiply it all together and then divide by 2. sorry if I'm wrong lol

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3 years ago

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If GF is a midsegment of CDE, find CD.<br><br> A. 3.4<br><br>B. 6.8 <br><br>C. 13.6 <br><br>D. 14

bogdanovich [222]

Answer:

C

Step-by-step explanation:

Triangle CGF and triangle CED are similar. Hence, the ratio of their corresponding sides are equal. Thus we can write:

$\frac{5x+4}{2x+3}=\frac{CD}{3x+0.8}$

<em>We can now cross multiply and solve for CD:</em>

$\frac{5x+4}{2x+3}=\frac{CD}{3x+0.8}\\(5x+4)(3x+0.8)=(2x+3)(CD)\\15x^2+4x+12x+3.2=(2x+3)(CD)\\15x^2+16x+3.2=(2x+3)(CD)\\CD=\frac{15x^2+16x+3.2}{2x+3}$

Since GF is a midsegment of CDE, CD is double of CF. So we can write:

$CD=2CF\\\frac{15x^2+16x+3.2}{2x+3}=2(3x+0.8)\\\frac{15x^2+16x+3.2}{2x+3}=6x+1.6\\15x^2+16x+3.2=(6x+1.6)(2x+3)\\15x^2+16x+3.2=12x^2+18x+3.2x+4.8\\15x^2+16x+3.2=12x^2+21.2x+4.8\\3x^2-5.2x-1.6=0$

<em>By using quadratic formula $\frac{-b+-\sqrt{b^2-4ac} }{2a}$ and with a=3, b= -5.2, and c= -1.6, we find the value of x to be:</em>

$\frac{5.2+-\sqrt{(-5.2)^2-4(3)(-1.6)} }{2(3)}=2$

<em>Since the expression for CD is $\frac{15x^2+16x+3.2}{2x+3}$ , we plug in $x=2$ into this expression to find value of CD:</em>

$\frac{15(2)^2+16(2)+3.2}{2(2)+3}=13.6$

The correct answer is C

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3 years ago

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A store pays $50 for a pair of shoes. The markup is 25%. a. What is the selling price for the shoes? b. What is the total cost f

postnew [5]

Answer:

12.5 and then 6 percent would probably be 12 dollars 80 cents

Step-by-step explanation:

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2 years ago