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2 years ago

14

Briana has just finished her sixth grade scrapbook.in her scrapbook,47% of the pages include her twin sister,Bethany.The scrapbo

ok has 896 photos.About how many photos include Bethany?Use a rate per 100 to estimate

2 answers:

iren [92.7K]2 years ago

8 0

About 421 of the photos include Bethany (Exact=421.12)
You set 47/100 equal to x/896 and cross multiply.

denis-greek [22]2 years ago

4 0

About 421 pictures has her twin sister in them

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The area of the top of the rectangle table is 323 square feet. If the length of the table is19 feet what is the width of the tab

Anit [1.1K]

A=lw, right? So you would take what you know, 323 being a and 19 being l. 323=19w
Divide both sides by 19 leaving you with
323/19=w
17 feet=w

6 0

3 years ago

A train drove the distance of 440 feet in 20 seconds. Select ALL the unit rates that are equivalent to the speed of the model ai

katrin [286]

Answer:

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3 years ago

I put a random encouraging message on here just to spread some positivity/encouragement, and someone deleted it because it "went

malfutka [58]

Answer:

It was probably just because it wasnt a question.

Step-by-step explanation:

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2 years ago

The sum of the lengths of two opposite sides of the circumscribed quadrilateral is 12 cm, the length of a radius of the circle i

nasty-shy [4]

Answer:

60cm^2

Step-by-step explanation:

We assume that is a circumscribing quadrilateral, rather than one that is circumscribed. It is also called a "tangential quadrilateral" and its area is ...

K = sr

where s is the semi-perimeter, the sum of opposite sides, and r is the radius of the incircle.

K = (12 cm) (5cm) = 60 cm²

_____

A quadrilateral can only be tangential if pairs of opposite sides add to the same length. Hence the given sum is the semiperimeter.

8 0

3 years ago

F(x+1)+f(x+2)=2x+3; f(x)=?

Rama09 [41]

Answer:

$F=\frac{-xf+f+2x}{x+1};\quad \:x\ne \:-1$

Step-by-step explanation:

$1. \mathrm{Subtract\:}f\left(x+2\right)\mathrm{\:from\:both\:sides}\\
F\left(x+1\right)+f\left(x+2\right)-f\left(x+2\right)=2x+3f-f\left(x+2\right)

$

$2. \mathrm{Simplify}\\
F\left(x+1\right)=-xf+f+2x\\
$

$3. \mathrm{Divide\:both\:sides\:by\:}x+1;\quad \:x\ne \:-1\\
\frac{F\left(x+1\right)}{x+1}=-\frac{xf}{x+1}+\frac{f}{x+1}+\frac{2x}{x+1};\quad \:x\ne \:-1$

$4. \mathrm{Simplify}\\
F=\frac{-xf+f+2x}{x+1};\quad \:x\ne \:-1$

Final Answer: $F=\frac{-xf+f+2x}{x+1};\quad \:x\ne \:-1$

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2 years ago