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4 years ago

I need help in this it is timed, please!!

Mathematics

2 answers:

Alecsey [184]4 years ago

6 0

The answer is B.hope this helps

Andreyy894 years ago

5 0

Answer:

Step-by-step explanation:

Plug in all the values for x & y into the equation y=2x+3 (B). 2*2=4. 4+3=7. All the other values for x & y match up perfectly as well. The answer is B

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Create and solve a system of equations and solve for x and y.

Helga [31]

Answer:

Step-by-step explanation: x+4-5=y

8 0

3 years ago

A driver travels 208 miles in 4 hours. what is the driver's speen,in miles per hour ?

valina [46]

Answer:

Step-by-step explanation:

miles per hour so 208, which is miles and 4 which is hours so 208/4 which is 52

4 0

3 years ago

Read 2 more answers

Six times the reciprocal of a number equals 3 times the reciprocal of 2. Find the number

Aleonysh [2.5K]

3=x as the answer would be the reciprocal

6 0

4 years ago

James is building a deck for a client and has several pieces of wood he wants to use. The sizes of the pieces of wood are 1.5m,

TiliK225 [7]

Answer:

$Total = 9.65m$

Step-by-step explanation:

Given

$Pieces: 1.5m, 2500mm, 850mm, 4.8m$

Required

The total length in metres (this completes the question)

The total length is:

$Total = 1.5m + 2500mm + 850mm + 4.8m$

Convert mm to m

$Total = 1.5m + 2500*0.001m + 850*0.001m + 4.8m$

$Total = 1.5m + 2.5m + 0.85m + 4.8m$

$Total = 9.65m$

<em>The total length of the wood is 9.65 metres</em>

4 0

3 years ago

In a jar, there is a green, a blue, and a red marble. You draw (with replacement) a marble from the jar until you get the green

denpristay [2]

Answer:

The value is $P( X = m ) = (\frac{2}{3} )^{m-1 } * \frac{1}{3}$

Step-by-step explanation:

From question we are told that

The number of types of marbles present jar is n = 3

Generally the probability of drawing a green marble is

$P(g) = \frac{1}{3}$

Generally the probability of drawing a marble that is not green is

$P(g') = 1 - \frac{1}{3} = \frac{2}{3}$

From the question we are told that there will be continuous drawing of marbles from the jar (in such a way that after each marble is drawn it is being replaced) until a green marble drawn

Let m be the number of times marbles has been drawn when a green marble was gotten

it then means that for m - 1 times the marbles where drawn a green marble was not obtain.

Generally the probability drawing m times is mathematically is mathematically represented as

$P( X = m ) = (P(g'))^{m-1 } * P(g)$

=> $P( X = m ) = (\frac{2}{3} )^{m-1 } * \frac{1}{3}$

7 0

3 years ago