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Marizza181 [45]

3 years ago

10

If 8lbs of apples cost 12.48, how much is 1lb of apples

1 answer:

prisoha [69]3 years ago

3 0

Answer:

$1.56

Step-by-step explanation:

You have to divide the cost $12.48 and divide it with the 8lbs and it gives you $1.56, if your not sure that its the right answer than just multiply the answer with the 8lbs, your welcome!

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Simplify the expression: (7 times 18 plus 45) divided by 6

neonofarm [45]

Answer:

28.5 PLEASE GIVE ME BRAINLIEST

Step-by-step explanation:

(7 x 18 + 45) ÷ 6

171 ÷ 6 = 28.5

8 0

2 years ago

I NEED URGENT ASSISTANCE

Nata [24]

Answer:

<em>8 C sometimes</em>

<em>9 64x^8 y^11</em>

<em>10 c 1.28r^2/ t^9</em>

Step-by-step explanation:

<u>Algebraic Operations </u>

Some basic rules must be fresh in our minds when trying to simplify complex algebraic expressions. For example, the power rule respect to the product or quotient:

$\displaystyle \left(\frac{x^n.y^m}{z^p}\right)^q= \frac{x^{qn}.y^{qm}}{z^{qp}}$

$\displaystyle \frac{x^n.x^q}{x^p}= x^{n+q-p}$

$\displaystyle x^{-n}=\frac{1}{x^n}$

Let's face the questions at hand

8. A number is raised to a negative exponent is negative?

Following the expressions recalled above, let's pick the expression

$\displaystyle 3^{-2}=\frac{1}{3^2}=\frac{1}{9}$

This is a negative power resulting in a positive number

Now we pick

$\displaystyle (-2)^{-3}=\frac{1}{(-2)^3}=-\frac{1}{8}$

This time, the negative power leads to a negative result, so it doesn't matter the sign of exponent to determine the sign of the result

<em>Answer: C sometimes </em>

9 simplify(4xy^2)^3(xy)^5

$(4xy^2)^3(xy)^5=4^3x^3(y^2)^3x^5y^5$

$=64x^3y^6x^5y^5$

$=64x^8y^{11}$

10 simplify(2t^-3)^3(0.4r)^2

$(2t^{-3})^3(0.4r)^2=2^3(t^{-3})^30.4^2r^2$

$=8t^{-9} 0.16 r^2$

$=1.28t^{-9} r^2$

$\displaystyle \frac{1.28 r^2}{t^9}$

7 0

3 years ago

Shen needs to memorize words on a vocabulary list for german class. he has memorized 12 of the words, which is two-thirds of the

katrin [286]

2/3 of the list = 12

2/3x = 12
x = 12 / (2/3)
x = 12 * 3/2
x = 36/2
x = 18 <=== there are 18 words on the list

3 0

3 years ago

Simplify the expression

Reil [10]

Answer:453rft

Step-by-step explanation:

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3 years ago

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What is the value for angle 2?<br><br> I need help

GaryK [48]

Answer:

120

Step-by-step explanation:

all complementary angles should add up to 180 degrees

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3 years ago

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