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2 years ago

In triangle ABC show find BC.. Need help ASAP!!!

Mathematics

2 answers:

Allisa [31]2 years ago

5 0

Answer:

Segment BC is (3d + 7)cm, where d=5. So, BC= 22cm.

Step-by-step explanation:

Segment BC is (3d + 7)cm, where d=5. You find this through these steps:

(5d-3)=(3d+7) Subtract 3d from 5d, which equals 2d.

2d-3=7 Now, add 3 to 7.

2d=10 Divide 10 by 2.

d=5 The solution is 5.

Plug 5 into the equation of Segment BC:

3(5) + 7

BC= 22

Temka [501]2 years ago

3 0

Answer: BC=22cm

Step-by-step explanation:

5d-3=3d+7

2d=10

d=5

plug 5 into the equation for BC, and you get 22

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konstantin123 [22]

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2 years ago

Juan and Nina are in the Junior High Orchestra. As part of the orchestra they each have to learn two instruments. Juan is learni

larisa86 [58]

Answer:

Nina practiced the viola for 11.25 hours last week.

Step-by-step explanation:

Juan practiced the violin for 9 hours last week. For each 3 hours that he practices the violin, he practices 2.5 hours of cello. So

3h violin - 2.5h cello

9h violin - xh cello

$3x = 9*2.5$

$x = 7.5$

He practiced 7.5 hours of cello, the same as Nina.

For every 3 hours Nina spends practicing the viola she practices the cello for 2 hours. So:

3h viola - 2h cello

xh viola - 7.5h cello

$2x = 3*7.5$

$x = 7.5*1.5$

$x = 11.25$

Nina practiced the viola for 11.25 hours last week.

7 0

2 years ago

What does 3/216 simplify to

quester [9]

216 divided by 3 is 72 so making the answer

1/72

6 0

3 years ago

If someone helps me with this question I will put them as a brainliest thank you

pentagon [3]

8 ÷ 0.001 = 8 000
a) 8 ÷ 0.0001 = 80 000

8 ÷ 0.001 = 8 000
b) 8 ÷ 0.01 = 800

8 ÷ 0.001 = 8 000
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c)8 ÷ 0.01 = 8 000

7 0

2 years ago

What are the solutions to the equation <br><img src="https://tex.z-dn.net/?f=%20%7Cx%20-%208%7C%20%20%2B%202%20%3D%2020" id="Tex

nexus9112 [7]

Answer:

Solutions are -10 and 26

Step-by-step explanation:

( - the abolute sign I'm using

( x - 8 ) + 2 = 20

( x - 8 ) = 18

x - 8 = 18 (postive case)

x - 8 + 8 = 18 + 8

x = 26

( x - 8 ) = 18

x - 8 = -18 (negative case)

x - 8 + 8 = -18 + 8

x = -10

8 0

3 years ago