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2 years ago

HERE I AM AGAIN, HELPPPPP ILL GIVE BRAINLIEST <3

Mathematics

2 answers:

nikklg [1K]2 years ago

6 0

Answer:

For number three I think the blank represents 1.25

Step-by-step explanation:

<em><u>For the third one:</u></em>

I named the answer / total as x

-x - 2.25 = x

-x + 2.5 + 2.5 = x + 2.5

Simplifying it would give 1.25

(I'm unsure for the answer but I tried!)

HOPE THIS HELPS!!

fredd [130]2 years ago

5 0

it equals 2.75 because 2 negatives means you add

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On the first day of vacation, you read one-quarter of a novel. On the second day, you read half of the remaining pages. On the t

OverLord2011 [107]

The computation shows that the number of pages is 320.

The number of pages read in this second day will be 120.

<h3>How to illustrate the information?</h3>

Fraction read on first day = 1/4

Fraction news on second day = 1/2 × 3/4 = 3/8

Fraction read on last day = 1 - (1/4 + 3/8) =3/8

The number of pages that the book has will be:

= 3/8 × x = 120

0.375x = 120

x = 120/0.375

x = 320

The number of pages is 320.

b. The number of pages read on this second day will be:

= 3/8 × 320

= 120

Learn more about computations on:

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1 year ago

Verify -(-x) = x for:<br> a) <img src="https://tex.z-dn.net/?f=%5Cfrac%7B5%7D%7B9%7D" id="TexFormula1" title="\frac{5}{9}" alt="

Mila [183]

It a because negative times a negative is a positive

5 0

2 years ago

GodBrainMaster is shutting down for awhile for upgrades!<br><br> Whats 8 ÷ 4 (2 + 2) = → ?

ANEK [815]

Answer:

eight

Step-by-step explanation:

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2 years ago

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A heated piece of metal cools according to the function c(x) = (.5)x − 7, where x is measured in hours. A device is added that a

Mama L [17]

Answer:

Option (b) is correct.

The temperature of the metal after two hours is 28 Celsius

Step-by-step explanation:

Given : A heated piece of metal cools according to the function $c(x)=(0.5)^{x-7}$ , where x is measured in hours and then a cooling device id added that aids in cooling according to the function $h(x)=-x-2$

We have to determine the temperature of the metal after two hours.

Let w(x) denotes the temperature of metal .

Thus, w(x) can be given by function c(x) + h (x) = [c + h](x)

Thus, $w(x)=[c+h](x)\\\\w(x)=(0.5)^{x-7}+(-x-2)\\\\$ , where x is measured in hours.

Thus, after two hours that is when x = 2

the temperature of metal is given by w(2)

$w(x)=(0.5)^{x-7}+(-x-2)\\\\ w(2)=(0.5)^{2-7}+(-2-2)$

Solving , we get,

$w(2)=(0.5)^{2-7}+(-2-2)\\\\ w(2)=(0.5)^{-5}+(-4)\\\\ w(2)=32-4=28$

Thus, the temperature of the metal after two hours is 28 Celsius.

Hence, Option (b) is correct.

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3 years ago

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In a survey about a new immigration law in Georgia, "46% of the 132 Georgia farmers, agricultural processors, and farm service b

Triss [41]

Answer:

The 132 who responded is the SAMPLE.

Step-by-step explanation:

In a survey about a new immigration law in Georgia, "46% of the 132 Georgia farmers, agricultural processors, and farm service businesses who responded said they were experiencing some degree of labor shortage"

So, here the 132 who responded are samples.

Sample is defined as a small part of a surveyed population, that shows what the whole population must be like.

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3 years ago