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3 years ago

Can anyone please help me ? :(

Mathematics

1 answer:

maksim [4K]3 years ago

7 0

Answer:

w=3z+2

Step-by-step explanation:

You can plug in the w and z coordinates for each of the equations and see if they are true.

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Anna baked 3 batches of cookies with c cookies in each batch. She then ate 8 cookies! How many cookies does Anna have left? Writ

borishaifa [10]

Answer:

$3c-8$

Step-by-step explanation:

Let

c-------> the number of cookies in each batch

we know that

To find the total number of cookies, multiply the number of batches by the number of cookies in each batch

$3c$ ------> equation that represent the total number of cookies

If Anna ate $8$ cookies

then

The expression to know how many cookies Anna has left is equal to

$3c-8$

8 0

3 years ago

Two ropes are attached to a large ballon in a parade. The people holding the ropes are 40 feet apart,and the angle between the t

qaws [65]

Ropes are 9.63 meters ans 8.178 meters.

Step-by-step explanation:

Step 1 :

List all the given things

Distance between people holding ropes = 40 =(40*0.3048) meters = 12.192 meters

Angle between two ropes = 86 degrees

Angle of elevation of one rope = 42 degrees

Step 2 :

Two angles of triangle are already given so third angle can be calculated as -

Third angle = 180 - ( 86 + 42 ) = 52 degrees

Step 3 :

As we know all three angles we will apply sine rule now, which is

$\frac{a}{sine A} = \frac{b}{sine B} = \frac{c}{sine C}$

Step 4 :

By putting values, we have

$\frac{a}{sine 52} = \frac{b}{sine 42} = \frac{12.192}{sine 86}$

Step 5 : Calculating a and b

$a = 12.192 * \frac{sine 52}{sine 86}$ , $b = 12.192 * \frac{sine 42}{sine 86}$

Step 6 :

By putting values of all sine and calculating we get,

a = 9.63 meters and b = 8.178 meters

4 0

3 years ago

(Need 3 answers) An entomologist discovered a new insect species. The population of the insect species can be modeled by P(n) =

Strike441 [17]

Answer:

See below

Step-by-step explanation:

According to the model, the equation is:

P(n) = 3450*bⁿ

Based on the equation, the initial number of insects is 3450

If b = 1.75, daily growth rate is:

1.75 - 1 = 0.75 = 75%

If we get P(4) = 55200, find the value of b:

55200 = 3450*b⁴
b⁴ = 55200/3450
b⁴ = 16
b⁴ = 2⁴
b = 2

3 0

2 years ago

The jars of paint in the art room have different amounts of paint. The green paint jar is 4/8 full. The purple paint jar is 4/6

Novay_Z [31]

4/8 is less full because the 6th fraction is more than the 8th and there is the same amount of pieces.

3 0

4 years ago

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A bookstores having a 30% off sale Diary of a Wimpy Kid books are now $6.36 each what is the original price of the book

masha68 [24]

Answer: $9.09

Explanation:

100% - 30% = 70

$\textnormal {Original Price} = \cfrac{6.36}{70} \times 100 = \$9.09$

The Wise Orange loves to read Diary of a Wimpy Kid. Which store is having that 30% discount?

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3 years ago

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