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3 years ago

Five less than seven times a number equals the sum of five times the number and one

Mathematics

1 answer:

Tema [17]3 years ago

7 0

Answer:

2.5

Step-by-step explanation:

7x - 5x = 5

2x = 5

x =5/2

x = 2.5

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Rectangle JKLM is rotated 90° clockwise about the origin.

shusha [124]

Answer:

Clockwise rotation 90 ° about origin

R_{90, clockwise, origin}(x,y) -> (y,-x)

J(-4,1) therefore

R_{90, clockwise, origin}J(-4,1) -> J'(1,+4) this answer was form other person credits to him/her

Step-by-step explanation:

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3 years ago

Which equation is a function of x?

Alex787 [66]

The first one I think not sure

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3 years ago

A marble is randomly selected from a bag. The probability of selecting a marble with dots on it is 0.2. The probability of selec

marin [14]

Answer:

0.5

Step-by-step explanation:

Let D be the event of selecting a marble with dots.

Let P be the event of selecting a purple marble.

The probability of selecting a marble with dots, P(D)=0.2

The probability of selecting a marble that is both purple and has dots, $P(D \cap P)=0.1$

We want to determine the probability of selecting a purple marble given that the marble has dots on it, P(P|D)

By the definition of conditional probability:

$P(P|D)= \dfrac{P(P \cap D)}{P(D)} \\= \dfrac{0.1}{0.2}\\ =0.5$

The probability of selecting a purple marble given that the marble has dots on it is 0.5.

4 0

3 years ago

Mary has $267 in her checking account . She writes checks for $33,$65 and 112. What is the balance in her account now ?

natulia [17]

Answer:

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Hey ! Can anyone help me with this please ? Thank you so much .

castortr0y [4]

9514 1404 393

Answer:

x = 57

Step-by-step explanation:

Where parallel lines are crossed by a transversal, all obtuse angles are congruent and supplementary to all acute angles, which are also congruent.

x = 180 -123

x = 57

6 0

2 years ago