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Ivanshal [37]
3 years ago
12

Help me plsss I need help

Mathematics
1 answer:
RideAnS [48]3 years ago
3 0

x+1+7x-5=180.

8x -4=180

X=23

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josh has a job mowing lawns. He charges$25 for each yard. He needs at least $400 for the new game system that he wants. write an
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25x\geq400

x\geq16

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Karina needs a total of $45 to buy her mother a birthday present. She has saved 20% of the amount so far. How much has she saved
professor190 [17]

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$9.00

Step-by-step explanation:

$45.00x20%=9

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To graduate this semester, you must pass Statistics 314; and you estimate that you have an 85% chance of passing. You need to pa
Nitella [24]

Answer:

Probability of graduating this semester is 0.7344

Step-by-step explanation:

Given the data in the question;

let A represent passing STAT-314

B represent passing at least in MATH-272 or MATH-444

M1 represent passing in MATH-272

M2 represent passing in MATH-444

C represent  passing GERMAN-32

now

P( A ) = 0.85, P( C ) = 90, P( M1 ) = P( M2 ) = 0.8

P( B ) = P( pass at least one of either MATH-272 or MATH-444 ) = P( pass in MATH-272 but not MATH-444 ) + ( pass in MATH-444 but not in MATH 272) + P( pass both )

P( B ) =  P( M1 ) × ( 1 - P( M2 ) ) + ( 1 - P( M1 ) ) × P( M2 ) + P( M1 ) × P( M2 )

we substitute

⇒ 0.8×0.2 + 0.2×0.8 + 0.8×0.8 = 0.16 + 0.16 + 0.64 = 0.96

∴ the probability of graduating this semester will be;

⇒ P( A ) × P( B ) × P( C )

we substitute

⇒ 0.85 × 0.96 × 90

⇒ 0.7344

Probability of graduating this semester is 0.7344

6 0
3 years ago
Please help!!! EASY BRAINLIEST
faltersainse [42]

<em>Your answer would be 5, just the number in general.</em>

<em>>[I'ma be honest here and say I had a fraction earlier :P</em>

4 0
3 years ago
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