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Nikolay [14]
3 years ago
11

Answer correctly for the brainliest answer

Mathematics
1 answer:
Dahasolnce [82]3 years ago
4 0

Similar triangles so AC:BC=AE:DE

15+6=21 = AE

15:12.5=21:?

to get from 15 to 12.5 you divide by 15 and times by 12.5 so do this the to the other side

21/15=1.4

1.4 x 12.5=17.5

So DE=17.5

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I NEED HELP - HOMEWORK
postnew [5]

Bag 1:  2R, 1B

Bag 2: 1R, 1B, 2Y

Draw 1 from each bag

a) P(same color)

We have 2/3 chance of drawing R from bag 1 and a 1/4 chance of drawing R from bag 2

P(both R) = (2/3)(1/4)  = 1/6

We have a 1/3 chance of drawing B from bag 1 and 1/4 chance of B from bag 2

P(both B) = (1/3)(1/4) = 1/12

P(same color) =1/6 + 1/12 = 3/12 = 1/4

Answer: a) 1/4

b) P(exactly one R)

Same story except we look at the complement in bag 2

We have 2/3 chance of drawing R from bag 1 and a 1/4 chance of drawing R from bag 2, so a 3/4 chance of NOT drawing R.

P(1st red, second not red) = (2/3)(3/4) = 1/2

We have 1/3 chance of drawing B from bag 1, so 1/3 chance of drawing NOT red from bag 1.  We have a 1/4 chance of drawing R from bag 2, so

P(1st blue, second not blue) = (1/3)(1/4) = 1/12

P = 1/2 + 1/12 = 6/12 + 1/12 = 7/12

Answer: 7/12

6 0
3 years ago
A rectangle whose perimeter is one hundred four feet. Has a width that is te feet shorter Then its length. What are the dimensio
Stolb23 [73]

Length of the rectangle is 24.5 ft and width is 27.5 ft

Step-by-step explanation:

  • Step 1: Let the length of the rectangle be x, then width = x - 3. Find dimensions when perimeter = 104 ft

Perimeter = 2(length + width)

⇒ 104 = 2(x + x-3)

⇒ 104 = 2(2x - 3)

⇒ 104 = 4x - 6

⇒ 4x = 110

∴ x = 110/4 = 27.5

⇒ x - 3 = 24.5

8 0
4 years ago
Yvette measured the length of her driveway to be 5 meters long. Which of these is an equivalent measurement?
tresset_1 [31]

the answer is c. 16.4 feet in 5 meters

4 0
3 years ago
Read 2 more answers
(REPOST)
nirvana33 [79]

Answer:

44m

Step-by-step explanation:

X=4

X+5=?...4+5=9

2X+1=...8+1=9

X+9=?...4+9=13

13+13+9+9=44m

Hope this helps as it is my first ever answer :)

7 0
3 years ago
Read 2 more answers
Somebody help me asap please giving brainliest!
Ierofanga [76]

Answer: 9/8 is greater than 7/10 because its greater than 1. 7/10 is not

Step-by-step explanation:^^^

4 0
3 years ago
Read 2 more answers
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