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4 years ago

PLZZZZZZZZZZZZ HELP!?!?!??!?!?! What is the length of BC¯¯¯¯¯ ?

Mathematics

2 answers:

myrzilka [38]4 years ago

5 0

The length of BC is 36. It is 36 because it includes BD and DC and BD and DC are equal to 18 so you have to add BD and DC to get 36.

olganol [36]4 years ago

4 0

According to the markings, BD = DC. From this fact

BD = DC

BD + DC = BC

18 + 18 = BC

BC = 36 <<<<<< Answer

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Read 2 more answers

kyle works at a donut factory where a 10-oz cup of coffee costs 95 cents, a 14-oz cup costs $1.15, and a 20-oz cup costs $1.50.

8_murik_8 [283]

Answer:

The number of a 10-oz cup of coffee was 6

The number of a 14-oz cup of coffee was 6

The number of a 20-oz cup of coffee was 5

Step-by-step explanation:

Let

x ----> the number of a 10-oz cup of coffee

y ----> the number of a 14-oz cup of coffee

z ----> the number of a 20-oz cup of coffee

we know that

$x+y+z=17$ -----> equation A

$10x+14y+20z=244$ ----> equation B

$0.95x+1.15y+1.50z=20.10$ ----> equation C

Using a equation System Solver (Wolfram Alpha)

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see the attached figure

therefore

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The number of a 14-oz cup of coffee was 6

The number of a 20-oz cup of coffee was 5

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