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2 years ago

Which ordered pair is a solution of the equation y=4x+9

Mathematics

1 answer:

Maru [420]2 years ago

3 0

What are the ordered pairs

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30r + –20 = 760 r = _____

andrey2020 [161]

Answer:

r = 26

Step-by-step explanation:

$30r+(-20)=760\\30r-20=760\\30r=780\\r=26$

6 0

2 years ago

Read 2 more answers

Liz is hiking a trail that is 0.8 miles long. Liz hikes the first 2 tenths of the distance by herself. She hikes the of the way

antoniya [11.8K]

0.6 miles.

Since there is 0.8 miles to hike in total, she hiked 0.2 miles.

To solve, we just easily subtract the amount that Liz hiked from the amount that needs to be hiked.

She hiked 0.2 miles, which means we need to subtract 0.2 from 0.8.

8 - 2 = 6

The answer is 0.6 miles.

3 0

3 years ago

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0.4(2-q=0.2(q+7) hurry please

Lerok [7]

Answer:

q=-1

Step-by-step explanation:

.8-.4q=.2q+1.4

-.2q -.2q

.8-.6q=1.4

-.8 -.8

-.6q= 0.6

/-.6 /-.6

q= -1

5 0

3 years ago

Which is the equation of a line that has a slope of -2/3 and passes through point (-3,-1)

DiKsa [7]

Answer:

y = -2/3x - 3

Step-by-step explanation:

y = mx + b

m = slope

(-3,-1) = (x,y)

Plus in the coordinates

-1 = -2/3(-3) + b

negative times negative = positive

-2/3 * -3 = 2

-1 = 2 +b

Use inverse operations

-2 --2

-3 = b

y = -2/3x - 3

5 0

2 years ago

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The probability that a randomly chosen citizen-entity of Cygnus is of pension age† is approximately 0.7. What is the probability

victus00 [196]

Answer: 0.2401

Step-by-step explanation:

The binomial distribution formula is given by :-

$P(x)=^nC_xp^x(1-p)^{n-x}$

where P(x) is the probability of x successes out of n trials, p is the probability of success on a particular trial.

Given : The probability that a randomly chosen citizen-entity of Cygnus is of pension age† is approximately: p =0.7.

Number of trials : n= 4

Now, the required probability will be :

$P(x=4)=^4C_4(0.7)^4(1-0.7)^{4-4}\\\\=(1)(0.7)^4(1)=0.2401$

Thus, the probability that, in a randomly selected sample of four citizen-entities, all of them are of pension age =0.2401

5 0

2 years ago