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2 years ago

6

I’m having trouble finding angle DCE, I figured out the angles in the kite (I hope), how do I find the angle next to it, it does

n’t equal 180, does it?

1 answer:

Rasek [7]2 years ago

7 0

Answer:

180 -angle BCD

Step-by-step explanation:

if you've found angle BCD you should be able to find angle DCE as angles on a straight line equal 180°

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9. The ages of A and B are in the ratio 3:5. Four years later,

Tom [10]

Answer:

A = 15 B = 25 in four years 19+29 = 48

Step-by-step explanation:

age A and B ratio is 3 to 5

A+4 + B+4 = 48

A + B = 40

A/B = 3/5 A = 3B/5

A + B = 40

3B/5 + B = 40

3B + 5B = 200 multiple both sides by 5

8B = 200

B = 25

A = 3B/5

A = 3(25)/5

A = 15

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3 years ago

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d1i1m1o1n [39]

Answer:

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Step-by-step explanation:

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2 years ago

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The average of the first 3 weights was 14 pounds. The average of the next 7 was 4 pounds. What was the overall average of the we

miskamm [114]

Answer:

$Average = 10$

Step-by-step explanation:

Given

$First\ Three = 14$ --- Average

$Next\ Seven= 4$ --- Average

Required

Determine the overall average

Represent the sum of the first three with x.

So:

$\frac{x}{3} = 14$

Solve for x

$x = 14 * 3$

$x = 42$

Represent the sum of the next seven with y.

So:

$\frac{y}{7} = 4$

Solve for y

$y = 4 * 7$

$y = 28$

The overall average is calculated as thus:

$Average = \frac{x + y}{7}$

$Average = \frac{42 + 28}{7}$

$Average = \frac{70}{7}$

$Average = 10$

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Answer:

Y -1

Step-by-step explanation:

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2 years ago