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Nitella [24]
3 years ago
11

There were 28 white ducks in a pond twice as many brown ducks in the same pond then half of the white ducks flew away how many d

ucks are in the pond
Mathematics
1 answer:
ivolga24 [154]3 years ago
4 0
Okay so
If there are 28 white ducks, and twice as many brown ducks thats
28x2=56
So the total amount of ducks is 56(brown)+28(white)=84
Then, if half the amount of while ducks fly away thats
84-14=70 (You get 14 by diving the amount of white ducks by 2 28/2=14)
Therefore, there are 70 ducks in the pond after half the amount of white duckies fly away.
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If the measure of < A is 99 ° and the measure of < B is 81 ° , then < A and < B are _____.
Doss [256]

Answer:

D.supplementary angles

Step-by-step explanation:

81+99=180

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Page No.
Alja [10]

Answer:

The other angle is 60°

Their ratio is 1 : 2

Step-by-step explanation:

Let us revise some special angles

A pair of complementary angles is two angles their sum is 90°

A pair of supplementary angles is two angles their sum is 180°

In the question

∵ One angle of the pair of complementary angle = 30°

∵ The sum of the two complementary angles = 90°

→ Subtract 30° from 90° to find the other angle

∴ The other angle = 90° - 30° = 60°

∴ The other angle is 60°

To find the ratio of them put them in the form of the ratio, then simplify the ratio to its simplest form

∵ Their ratio = 30 : 60

→ Divide both sides by 10

∴ Their ratio = 3 : 6

→ Divide both sides by 3

∴ Their ratio = 1 : 2

∴ Their ratio is 1 : 2

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3 years ago
Find ten solutions to the linear equation to the linear equation 1/2x+y=5
yuradex [85]

Answer:

(0,5), (2,4), (4,3), (6,2), (8,1), (10,0), (12,-1), (14,-2), (16,-3), (18,-4), and (20,-5)

Step-by-step explanation:

The given linear equation is :

\frac{1}{2} x + y = 5

Or

y =  -  \frac{1}{2} x + 5

Any ordered pair that satisfies this equation is a solution.

When x=0,

y =  -  \frac{1}{2}  \times 0 + 5 = 5

(0,5) is a solution

When x=2,

y =  -  \frac{1}{2}  \times 2+ 5 = 4

(2,4) is a solution.

When x=4,

y =  -  \frac{1}{2}  \times 4+ 5 = 3

(4,3) is a solution;

When x=6:

y =  -  \frac{1}{2} \times 6+ 5 = 2

(6,2).

When x=8,

y =  -  \frac{1}{2}  \times 8 + 5 = 1

Another solution is (8,1)

When x=10,

y =  -  \frac{1}{2}  \times 10 + 5 = 0

(5,0) is a solution

When x=12,

y =  -  \frac{1}{2}  \times 12+ 5 =  - 1

(12,-1) is a solution.

When x=14,

y =  -  \frac{1}{2}  \times 14+ 5 =  - 2

When x=16, we get:

y =  -  \frac{1}{2}  \times 16 + 5 =  - 3

When x=18, we get:

y =  -  \frac{1}{2}  \times 18+ 5 =  - 4

7 0
4 years ago
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