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4 years ago

PLEASE HELP !!! help me solve 7th grade math

Mathematics

1 answer:

densk [106]4 years ago

7 0

Answer:

x=6

Step-by-step explanation:

5x-10=2x+8

subtract 2x on both sides

3x-10=8

add 10 on both sides

3x=18

x=6

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Simplify please (x-3)(x+5)

Mademuasel [1]

Use the FOIL method.

(x-3)(x+5)

x^2 - 3x + 5x - 15

x^2 +2x -15

Please brainliest me if this helped; trying to level up!

6 0

3 years ago

therotreritcal probablity the theoretical probability that a pop song plays on your mp3 player is 0.45 there are 80 songs on you

sergeinik [125]

Multiply 80 by .45 to get the number that are pop.
80 x 0.45 = 36
That means 36 of the songs are pop.
Hope this helps!

8 0

3 years ago

1) Which expression represents the volume of a shipping box?

crimeas [40]

Answer:

(s+2)^3

Step-by-step explanation:

I think this is referring to a square as a box, so the length of a jewelry box would be s. We learn that a shipping box is 2 inches longer, so s+2 = the length of the shipping box.

Volume = Length*Width*Height, but if square, all dimensions are the same, so s+2 to the power of 3 would be your answer.

4 0

4 years ago

Please help me with this

sveticcg [70]

Answer:

$\frac{17}{8} + \frac{5}{3} = \frac{51 + 40}{24} = \frac{91}{24}$

hope it can help u~~

5 0

3 years ago

Compute the probability of the event E1 that Bob wins in a duel against Eve alone, assuming he shoots first. (Hint: Let x be the

skad [1K]

Answer: Hello your question is incomplete attached below is the missing

n ( 1 + n )

Step-by-step explanation:

P( Bob hits target ) = 1/3

P( Eve hits target ) = 2/3

P( Carol hits target ) = 1

Compute the P that Bob wins in a duel against Eve alone

P(Bob hits the target in first shot ) = n = 1/3

P(Bob hits the target in second shot ) = n^2 = ( 1/3 * 1/3 ) = 1/9

hence the probability of Bob winning( i.e. P( Bob wins Event E1 ) = n + n^2 = n ( 1 + n )

6 0

3 years ago