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AnnyKZ [126]
3 years ago
14

83 POINTS !!! I NEED HELP WITH THIS PLZZ DONT SCAM ME I NEED HELP WITH THIS!!! PLZZ HELP ME OUT

Mathematics
1 answer:
SIZIF [17.4K]3 years ago
6 0

Question 1

Lets <em>convert these to decimals</em> first:

2 1/2 = 2.5

1/4 = 0.25

Now <em>divide</em> 2.5 by 0.25 to find how many scoops Zack uses.

If you divide correctly, you get <em>10</em>.

Now <em>multiply</em> this by two becuase Zack has TWO bird feeders.

So Zach uses <em>20 scoops</em> to fill both bird feeders.

------------------------------------------------------------------------------------------------------

Question 2

Let x be the variable for the scoops Zack needs for both bird feeders

x = 2 \frac{1}{2} / \frac{1}{4} x 2

------------------------------------------------------------------------------------------------------

Question 3

x = 2 \frac{1}{2} / \frac{1}{4} x 2

2 \frac{1}{2} divided by \frac{1}{4}  =  10

x = 10 x2

10 multiplied by 2 is 20

So...

x = 20

------------------------------------------------------------------------------------------------------

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PLS I WILL GIVE BRAINLIEST
Nana76 [90]

Answer:

208 cm^2

Step-by-step explanation:

We can find the area of the net by adding up the area of each of the 6 rectangles that make up the net. Since two of each rectangle are the same, we only have to find the area of the 3 different sized rectangles and multiply each by 2.

Rectangle pairs are:

  • Left rectangle and right rectangle
  • Top rectangle and the rectangle above the bottom rectangle
  • Bottom rectangle and the rectangle surrounded by all for sides

Now, let's solve the question.

Left rectangle:

6 x 4 = 24, rectangle has area of 24 squared cm

Top rectangle:

6 x 8 = 48, rectangle has area of 48 squared cm

Bottom rectangle:

4 x 8 = 32, rectangle has area of 32 squared cm

Add up the areas:

(24 x 2) + (48 x 2) + (32 x 2) = 208

The rectangle has a surface area of 208 squared cm

4 0
3 years ago
Need geometry help ASAP please!
tatiyna

Answer:

1. 121 π  unit²

2. 143°

3. 151 unit²

Step-by-step explanation:

1.

Area of a circle is given by the formula  A = πr²

where

A is the area,

r is the radius of the circle

From the given diagram, we can see that the radius is 11, hence the area will be:

A=\pi r^2\\A=\pi (11)^2\\A=121\pi

The answer is  121\pi units^2

2.

The unshaded secctor and the shaded sector equals the circle. We know that circle is 360°. The unshaded sector has an angle of 217°. So the shaded part will be 360 - 217 = 143°

The measure of the central angle of the shaded sector is 143°

3.

Area of a sector is given by the formula  A=\frac{\theta}{360}*\pi r^2

Where

\theta is the central angle of the sector (in our case it is 143°)

r is the radius (which is 11)

Plugging in all the info into the formula we have:

A=\frac{\theta}{360}*\pi r^2\\A=\frac{143}{360}*\pi (11)^2\\A=150.99

<em>rounding to the nearest whole number, it is </em>151 units^2

3 0
4 years ago
To make 4.5 cups of fruity granola, the recipe calls for 1.5 cups of raisins, 1 cup of granola, and 2 cups of blueberries. If yo
Levart [38]

Answer:

you need 6 cups of raisins, 4 cups of granola and 8 cups of blueberries.

Step-by-step explanation:

<u>Step 1: Find how much raisins are needed</u>

<em>For 4.5 cups of fruity granola, we need 1.5 cups of raisins</em>

<em>For 18 cups of fruity granola, we need y cups of raisins</em>

4.5 : 1.5

18 : y

<em>Cross multiply</em>

4.5y = 1.5 x 18

y = 27/4.5

y = 6 cups of raisins

<u>Step 2: Find how much granola is needed</u>

<em>For 4.5 cups of fruity granola, we need 1 cup of granola</em>

<em>For 18 cups of fruity granola, we need y cups of granola</em>

4.5 : 1

18 : y

<em>Cross multiply</em>

4.5y = 18

y = 4 cups of granola

<u>Step 3: Find how much blueberries are needed</u>

<em>For 4.5 cups of fruity granola, we need 2 cups of raisins</em>

<em>For 18 cups of fruity granola, we need y cups of blueberries</em>

4.5 : 2

18 : y

<em>Cross multiply</em>

4.5y = 2 x 18

y = 36/4.5

y = 8 cups of blueberries

Therefore, in order to make 18 cups of fruity granola, you need 6 cups of raisins, 4 cups of granola and 8 cups of blueberries.

5 0
4 years ago
What is the constant of variation, k, for the table?
allochka39001 [22]
K = -2/3

Explanation:

7 0
3 years ago
Larry read a 400400400-page book. He read at a rate of 101010 pages per day for ddd days. Write an equation that could be used t
ira [324]

Answer:

From Larry's rate, the equation can be given as D = T/101010

Step-by-step explanation:

Larry's book has 400400400 pages

His reading rate is 101010 pages per day

Let D = Number of days to read the book

To get the number of days it takes fro Larry to read this book, we say

Total pages = Reading rate (pages/day) x Number of days

Let Total pages = T

and Reading rate = R

Hence;

D = T / R

From Larry's rate, the equation can be given as D = T/101010.

From the question,

ddd = 400400400 (pages) / 101010 (pages/day) = 3963.9 days

Hence, it takes Larry approximately 3964 days to read the book.

7 0
3 years ago
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