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kakasveta [241]

3 years ago

5

2. Mr. Abdulla has 160 cows, goats, horses, and chickens on his farm. 19% of the animals are cows, 28% are goats, 13% are horses

, and the rest are chickens. How many chickens are on the farm?

1 answer:

siniylev [52]3 years ago

6 0

Step-by-step explanation:

28 + 19 + 13 equal 60%

therefore 40% divided by 60% multiply by 160 gives number of chicks

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4c^2-8c-1=0 complete the square round to nearest hundredth

olga55 [171]

Move constant to other side
add 1
4c^2-8c=1
divide by 4 to make leading coeficient 1
c^2-2c=1/4
take 1/2 of linear coeficient and square it
-2/2=-1, (-1)^2=1
add that to both sides
c^2-2c+1=1/4+1
factor perfect squaer and add
(c-1)^2=5/4
square root both sides
c-1=+/-(√5)/2
add 1
c=1+/-(√5)/2

c=2.12 or -0.12

8 0

3 years ago

The diameter of a large sphere is 4 times the diameter of a small sphere. The surface area of the large sphere is how many times

Sever21 [200]

Surface Area of a Sphere = 4π(d/2)²
Let the smaller sphere's diameter be just a sample of 4 units in diameter and let the large spheres diameter be 4 times that of the smaller sphere.

Small Sphere: 4π(4/2)² = 16π units²
Large Sphere: 4π(16/2)² = 256π units²

256π / 16π = 16 times

The large sphere has a surface area 16 times that of the smaller one.

4 0

3 years ago

A photograph was enlarged to a width of 15 inches. If the scale factor was 3 /2 , what was the width of the original photograph?

andre [41]

If the width is 15, and the scale factor from width to length is 3:2, then you will have to divide 15 by 3 to get your original width.
15/3 = 5.
5 is your original width.

6 0

3 years ago

If 30 marbles were to divided between 7 people how much each person will get ?

kirza4 [7]

Hi,

Here is the equation.
$30 \div 7 = 4.28$
Each person would get 4.28 marbles.

Hope this helps.
r3t40

3 0

3 years ago

Which coordinate grid shows Point A at (0.50, −1.25)? (1 point)

polet [3.4K]

9514 1404 393

Answer:

(d) see below

Step-by-step explanation:

Since each grid square is 1/4 unit. the coordinates in terms of grid squares are ...

A(0.50, -1.25) ⇒ (0.50/.25, -1.25/.25) = (2, -5) . . . grid squares

Point A is located 2 squares right and 5 squares down on the grid. This matches choice D.

5 0

3 years ago

Read 2 more answers