2 years ago

80 students at a particular school are randomly selected for a survey. 52 cat cereal for breakfast. If

Mathematics

1 answer:

rewona [7]2 years ago

8 0

Answer:

715

Step-by-step explanation:

52/80 × 1100=715 students eat cereal for breakfast

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Solve the equation. Round to the nearest hundredth. Show work.

Burka [1]

Answer:

$x=-0.75$

Step-by-step explanation:

The given equation is

$4^{-5x-7}=6^{2x-1}$

We take logarithm of both sides to base 10.

$\log(4^{-5x-7})=\log(6^{2x-1})$

$(-5x-7)\log(4)=(2x-1)\log(6)$

We expand the brackets to get;

$-5x\log(4)-7\log(4)=2x\log(6)-\log(6)$

Group similar terms;

$-7\log(4)+\log(6)=2x\log(6)+5x\log(4)$

$-7\log(4)+\log(6)=(2\log(6)+5\log(4))x$

$\frac{-7\log(4)+\log(6)}{(2\log(6)+5\log(4))}=x$

$x=-0.752478$

To the nearest hundredth.

$x=-0.75$

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3 years ago

What is the slope of a line perpendicular to the line whose equation is 9x-6y=36

VladimirAG [237]

Answer: -2/3

Step-by-step explanation:

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2 years ago

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)Tessa had $35. She bought a book for $7 and a magazine for $5. Which expression correctly shows the total money Tessa has left?

Sergeu [11.5K]

Total - book $ - magazine $

Which is equal to:

Total + (-book $) + (-magazine $)
$35 + (-$7) + (-$5)

ANSWER: (C) $35 + (-$7) + (-$5)

Hope this helps! :)

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2 years ago

Find the average range. Round the mean and the average range to the nearest tenth. (Show all your work on scratch paper, then en

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3, 12, 15, 25, 30, 40The range is the difference between the greatest and smallest values:
range = 40 - 3 = 37

Thee average is the sum of elements divided by the number of elements:
average = (<span>3 + 12 + 15 + 25 + 30 + 40</span>)/6
average = 125/6 = 20.83

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2 years ago

In Middletown, Main Street and Market Street are parallel to each other. Patrick Street intersects Market Street to form a 76° a

OLga [1]

Answer:

Step-by-step explanation:

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2 years ago

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