3 years ago

I need this answer asap

Mathematics

1 answer:

antoniya [11.8K]3 years ago

5 0

Answer:

240

Step-by-step explanation:

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What is 4.3(v+2.5)=8.11+4v

True [87]

Answer:

-8.8

Step-by-step explanation:

We begin by simplifying the parenthesis through multiplication. Parenthesis is a structure which signals multiplication happening.

$4.3(v+2.5)=8.11+4v\\4.3v+10.75=8.11+4v$

We now begin combining like terms across the equal sign by performing the inverse or doing the opposite. Move first the 8.11 by subtracting it from both sides.

$4.3v+10.75-8.11=8.11-8.11+4v\\4.3v+2.64=4v$

Now, move 4.3v across by subtracting it from both sides.

$4.3v-4.3v+2.64=4v-4.3v$

$2.64=-0.3v$

Finally, we divide both sides by the coefficient of v.

$\frac{2.64}{-0.3} =\frac{-0.3v}{-0.3} \\-8.8=v$

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3 years ago

HELP ME FOR BRAINETEST

Eddi Din [679]

Answer:

1 7/8

Step-by-step explanation:

The answer is 1 7/8.

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3 years ago

The probability that a certain machine will produce a defective item is 0.20. if a random sample of 20 items is taken from the o

GenaCL600 [577]

Use binomial distribution, with p=0.20, n=20, x=3
P(X=x)=C(n,x)p^x (1-p)^(n-x)

P(X>=3)
=1-(P(X=0)+P(X=1)+P(X=2))
=1-(C(20,0)0.2^0 (0.8)^(20-0)+C(20,1)0.2^1 (0.8)^(20-1)+C(20,2)0.2^2 (0.8)^(20-2))
=1-(0.0115292+0.057646+0.136909)
=1-0.206085
=0.793915

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4 years ago

The amount of change that goes up. percent of amount?percent of change? percent of increase? percent of decrease?

sweet [91]

the percentage increase

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3 years ago

Charles smith makes $9.75 an hour he works four hours on Monday six hours on Tuesday five hours on Wednesday five hours on Thurs

ladessa [460]

Simple. Multiple

Monday: 6x9.75
Tuesday &Wednesday: 5x9.75
Thursday & Friday: 7x9.75

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3 years ago

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