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blagie [28]
2 years ago
5

Decrease the number 225 in the ratio 5 : 3.

Mathematics
1 answer:
AnnyKZ [126]2 years ago
6 0

Answer:

correction=> distribute.the number in 5:3

Step-by-step explanation:

Major portion= 225×5/8 = 140 whole 5/8

minor portion= 225×3/8 = 84 whole 3/8

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A square grassy field is watered by 4 sprinklers. The sprinklers spray water in a circular pattern, as shown above. If the field
enot [183]
The answer is (3600 - 900π) ft²

Step 1. Find the radius r of circles.
Step 2. Find the area of the portion of the field that will be watered by the sprinklers (A1)
Step 3. Find the total area of the field (A2)
Step 4. Find the area of the portion of the field that will not be watered by the sprinklers (A)

Step 1. Find the radius r of circles
r = ?
According to the image, radius of a square is one fourth of the field side length:
r = s/4
s = 60 ft
r = 60/4 = 15 ft

Step 2. Find the area of the portion of the field that will be watered by the sprinklers.
The area of the field that will be watered by the sprinklers (A1) is actually total area of 4 circles with radius 15 ft.
Since the area of a circle is π r², then A1 is:
A1 = 4 * π r² = 4 * π * 15² = 900π ft²

Step 3. Find the total area of the field (A2)
The field is actually a square with side s = 60 ft.
A2 = s² = 60² = 3600 ft²

Step 4. Find the area of the portion of the field that will not be watered by the sprinklers (A).
To get the area of the portion of the field that will not be watered by the sprinklers (A) we need to subtract the area of 4 circles from the total area:
A = A2 - A1
A = (3600 - 900π) ft²
5 0
3 years ago
Read 2 more answers
the running back for the Bulldogs football team carried the ball nine times for a total loss of 15 3/4 yards find the average ch
Vitek1552 [10]
The average change in the field position on each run is. -1 3/4
6 0
3 years ago
Please see ATTACHED
anygoal [31]

Answer:

Step-by-step explanation:

The distance around the lot is the perimeter of the lot, which has a formula:

P 2L + 2W

We can fill in using the info given:

P=2(\frac{9}{8})+2(\frac{9}{10}) which multiplies to

P=\frac{18}{8}+\frac{18}{10} and finding a common denominator:

P=\frac{90}{40}+\frac{72}{40} and adding, gives you

P=\frac{162}{40}=4.05mi

8 0
3 years ago
Veronica found the number of lines of symmetry for the diamond shape. How many lines of symmetry does it have?
elena55 [62]
2 because you can evenly split it in half 2 different ways
6 0
3 years ago
Solve for x.<br><br>-6x - 29 = 5x - 7​
vodomira [7]

Answer:

x = -2

Step-by-step explanation:

-6x - 29 = 5x - 7​

Add -6x to both sides

-29 = 11x - 7

Add 7 on both sides

-22 = 11x

Divide

\frac{-22}{11} = \frac{11x}{11}

x = -2

7 0
3 years ago
Read 2 more answers
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