A shirt and a tie together cost $48 the shirt costs $22 more than the tie what is the cost of the shirt

Mathematics

2 answers:

Ipatiy [6.2K]3 years ago

4 0

Look at the picture attached. All steps are explained in the picture. Hope this helps :)

blondinia [14]3 years ago

3 0

Answer:

35$

Step-by-step explanation:

Let the shirt be = X

And the tie =Y

X + Y= 48$

X = 22 + Y (The shirt costs $22 more than the tie)

22 + 2y = 48

2y = 26

y = 13

X= 48 – 13

X = 35

therefore, the cost of the shirt is $35

and the cost of the tie is $13

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Answer:

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Step-by-step explanation:

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9. An express delivery service advertises next-day delivery of any parcel it receives before 3PM. The actual success rate is 90%

Juli2301 [7.4K]

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Step-by-step explanation:

GIVEN DATA:

n = 16

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from relation given probabllity can be solve

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= 1 - [ P(X = 13) +P(X = 14) +P(X = 15) +P(X = 16) ]

$= 1 - [ ^{16}C_{13} * 0.90^{13} * (1 - 0.90)^3 +^{16}C_{14} * 0.90^{14} * (1 - 0.90)^2 +^{16}C_{15} * 0.90^{15} * (1 - 0.90)^1 +^{16}C_{16} * 0.90^{16} * (1 - 0.90)^0 ]$