I really need help on #21 a-c thanks. :)

Answers

Answer 1

Answer: assuming that the order is
ok so
distance from greenvile to parker=29
distance from greenvile to hadley=?

distance from hadley to greenvile is 12 and 1/2 less than distance between parker and greenvile means
?=-12 and 1/2+29
add
-12 and 1/2+29=6 and 1/2

?=6 and 1/2 miles

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The function f(x)=-(x-3)^2 +9 can be used to represent the area of a rectangle with the perimeter of 12 units, as a function of the length of the rectangle, x. What is the maximum area of the rectangle?

Answers

Maximum area of the rectangle is $9cm^(2)$

Explanation:

Considering the dimensions to be in cm

$f(x) = -(x-3)^(2) +9\nf(x) = -(x^(2) +9 - 6x)+9\nf(x) = -x^(2) +6x\nf'(x) = -2x+6\n-2x+6 = 0\n2x=6\nx=3cm\n\n$

Putting the value of x = 3

$Perimeter = 2(x+b)\n12 = 2(3+b)\n6 = 3+b\nb= 3cm$

$Area of rectangle = x X b\n = 3 X 3\n = 9cm^(2)$

Therefore, maximum area of the rectangle is $9cm^(2)$

the room charge for a hotel is 230$ each day. the estevez family spends 4 days on vacation at the hotel . at the end of their stay they leave a 10% tip of the total room bill for the person who cleans their room. how much is the total bill including the tip for the person who cleans the room? explain

Answers

It's 230 per day and they spend 4 days so multiply 230 × 4 = 920

920 is the room charge. Now multiply 920 × 10% for the tip.

920× .10 = 92 that's the top

Add the tip to the room charge

920 + 92 = $1,012

10% of 230 is 23 so
230
+23 =
253
hope i helped:)

What is the decimal equivalent of 17/20?
A. 0.085
B. 0.117
C. 0.85
D. 8.5

Answers

I believe it’s the answer is C

Answer:

Step-by-step explanation:

Well its not A,B,orD because the first two are hundreths and the last one is way too big(greater than 1) so it must be C

Hope this helps :D Please mark brainliest if correct

A jar contains 2 pink, 6 red, and 4 blue marbles. If you pick one marble without looking, what is the probability that the marble you pick will be red or blue?

Answers

Answer:

5/6

Step-by-step explanation:

2+6+4=12

6+4=10

10/12=5/6

Answer:

10/12

Step-by-step explanation:

is the answer or 5/6

A store owner bought a jacket for $20. She sold it in her store for $35. What is the percent of the markup on the jacket?

Answers

If a store owner bought a jacket for $20 and sold it for $25 the markup would be 40%

35 tens equals how many hundreds

Answers

35 tens equal 350 and it has three hundred.

What is an expression?

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

35 tens can be written as,

35 x 10

= 350

= 300 + 50

We see that,

There are 3 hundred.

Thus,

35 tens have three hundred.

Learn more about expressions here:

brainly.com/question/3118662

#SPJ6

35 x 10 = 350 and 350 divided by 100 is 3.5. Three and a half or 3.5 is the answer.