3 years ago

5(3x + 9) – 2x = 15x – 2(x - 5)

Mathematics

1 answer:

Delvig [45]3 years ago

6 0

Answer:

No solution

Step-by-step explanation:

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In your biology class, your final grade is based on several things: a lab score, scores on two major tests, and your score on th

WARRIOR [948]

Answer:

$Weighted\ Average = 73$

Step-by-step explanation:

Given

$Lab = 21\%$

$Tests = 25\%$

$Exam = 29\%$

$Lab\ Score = 60$

$First\ Test = 81$

$Second\ Test = 69$

$Exam = 79$

Required

The weighted average

To do this, we simply multiply each score by the corresponding worth.

i.e.

$Weighted\ Average = Lab\ worth * Lab\ score + Tests\ worth * Tests\ score.....$

So, we have:

$Weighted\ Average = 21\% * 60 + 25\% * 81 + 25\% * 69 + 29\% * 79$

Using a calculator, we have:

$Weighted\ Average = 73.01$

$Weighted\ Average = 73$ --- approximated

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3 years ago

Triangle ADE is enlarged to form triangle ABC. What is the scale factor?

LekaFEV [45]

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3 years ago

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katen-ka-za [31]

Answer:

the answer of given question is $400.

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2 years ago

A commonly used unit of mass in the English system is the pound-mass, abbreviated lbm, where 1 lbm = 0.454 kg. What is the densi

Rashid [163]

<h2>Density of ethyl alcohol is 56.25 lbm/ft³ </h2>

Step-by-step explanation:

We have 1 lbm = 0.454 kg

1 kg = 2.203 lbm

1 m = 3.28 ft

Density of ethyl alcohol = 9.01 x 10² kg/m³

$\texttt{Density = }\frac{9.01\times 10^2\times 2.203}{3.28^3}=56.25lbm/ft^3$

Density of ethyl alcohol = 56.25 lbm/ft³

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3 years ago

Can someone please help?

Sati [7]

Answer:

It is closer to 7,000 than 8,000

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2 years ago

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