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3 years ago

What is the solution to 2(3x-9) + 5x = 10 Helppp!!

Mathematics

2 answers:

Greeley [361]3 years ago

8 0

Answer:

X=19 distribute , collect like terms

Step-by-step explanation:

Natasha2012 [34]3 years ago

7 0

Answer:

x=19

Step-by-step explanation:

distribute the 2 to the parenthesis and then add your common variables. do some simple algebra and then the answer would be 19.

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I need help with my math

stepladder [879]

Answer:

28.26

Step-by-step explanation:

π r² = A

A = (3.14) (3²)

A = 3.14 · 9 = 28.26

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3 years ago

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How do I solve this problem using the substitution method?

Ira Lisetskai [31]

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3 years ago

What is the answer to this sum 5/6 of 120

ELEN [110]

100 is the correct answer

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3 years ago

Clair has250 pennies some pennies are in a box the rest are in her bankthere are more then 100 pennies in each place how many pe

9966 [12]

Answer:

In each place there must be more 100 pennies, but as the total 250 pennies, there are several ways that the money is distributed.

Because there may be 101 pennies in the box and 149 pennies in the bank, but it can also be the opposite; in the box 149 pennies and in the bank 101 pennies.

Therefore, there are many options to answer the question, as long as it is met that there are more than 100 pennies in one place.

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3 years ago

The security system in a house has two units that set off an alarm when motion is detected. Neither one is entirely reliable, bu

Mariulka [41]

Answer:

Probability that detector B goes off is '0.615'

Step-by-step explanation:

Given that:

1) Probability that detector A goes off and detector B does not go off is 0.25.

2)Probability that detector A does not go off is 0.35.

3)Probability that detector A goes off is (1-0.35)=0.65

Assuming that

Probability that detector B goes off is 'p' Hence the probability that detector B does not goes off is (1-p)

Thus the probability that detector A goes off and detector B does not go off is product of the individual probabilities

$P(E)=0.65\times (1-p)\\\\0.65\times (1-p)=0.25\\\\0.65-0.65p=0.25\\\\0.65-0.25=0.65p\\\\\therefore p=\frac{0.40}{0.65}=0.615$

Probability that detector B goes off is '0.615'

5 0

3 years ago