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qwelly [4]
3 years ago
13

What does y = 2.5x - 10 equal?

Mathematics
1 answer:
mariarad [96]3 years ago
3 0

Answer:

Step-by-step explanation:

x= y+10

-----------------

    2.5

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How do u find the unit rate? <br> Pls explain it with 18 miles in 3 hours <br> thx
Tomtit [17]
Let's turn this into a fraction using the given information we already have.

\frac{18}{3}  \frac{miles}{hour}

We want the denominator, or the bottom part of the fraction, to be 1 in order for us to have a unit rate.

This fraction can be simplified if we divide both the numerator and denominator by 3.

Numerator: 18/3 = 6

Denominator: 3/3 = 1

Now we have

\frac{6}{1} \frac{miles}{hour}

Any number divided by 1 is equal to that number.

6 \frac{miles}{hour}

Thus, your unit rate is 6 miles per hour.

Have an awesome day! :)

~AgentCozmo4, Junior Moderator
4 0
3 years ago
Read 2 more answers
You have a bag full of apples. There are 8 Jonathan (red), 4 Granny Smith (green), and 5 Golden Delicious (yellow) apples in the
vredina [299]

Answer:

Step-by-step explanation:

There are 8 Jonathan (red), 4 Granny Smith (green), and 5 Golden Delicious (yellow) apples in the bag.

a) Select 3 apples with replacement. Find the probability that all there are green.

  • Given that we are taking all apples with replacement, the probability of getting a green apples remains the same in all 3 trials. Therefore the probability here is computed as:

  • = (Number of green apples/Total apples)
  • = (4/17)^3
  • = 0.0130

Therefore 0.0130 is the required probability here.

b) Select 3 apples with replacement. Find the probability that none are red

Probability that none are red is computed here as:

  • = (Number of non red apples/Total apples)
  • = (9/17)^3
  • = 0.14838

Therefore 0.14838 is the required probability here

c) Select 4 apples with replacement. Find the probability that you get at least 2 red apples

  • Probability that we get at least 2 red apples when 4 apples are drawn is computed here as:
  • = 1 - (Probability that no red apple is taken out when 4 apples are taken out + Probability that 1 red apple is taken out when 4 apples are taken out)
  • = 1 - 8C0 x 9C4 + 8C1 x 9C3 / 17C4
  • = 1 - 0.3353
  • = 0.6647

Therefore 0.6647 is the required probability here

d) Select 2 apples with replacement. Find the probability that the second apple is yellow given that the first apple is red.

  • Given that the first apple is red, we are left with 16 apples out of which 5 are yellow. Therefore the required probability here is computed as:
  • = 5/16
  • = 0.3125

Therefore 0.3125 is the required probability here

3 0
3 years ago
Ralph is estimating the cost of concrete to build a slab. The slab will have a length of 12 feet, a width of 9 feet, and a thick
snow_lady [41]

Answer:

$20196

Step-by-step explanation:

12 × 9 × 6 = 648 cubic feet ( volume of slab )

3 feet to a yard

So 648 ÷ 3 = 216

Multiply this by 1.1 to add an extra 10%

237.6 Cubic Yards Needed

$85 × 237.6 = $ 20196

Hope this helps

4 0
3 years ago
Grace bought a property valued at $200,00.00 and 20% down and a mortgage amortized over 10 years. She makes equal payments due a
BlackZzzverrR [31]

Answer:

Size of each monthly payment = $161.69 per month

Step-by-step explanation:

Given:

Value of property = $20,000

Downpayment = 20%

Number of payment = 12 x 10 = 120

Interest rate = 4% = 4% / 12 = 0.33 %

Computation:

Loan balance = 20,000 - 20%

Loan balance = $16,000

A] Size of each monthly payment [In Excel]

Size of each monthly payment = PMT(0.33%,120,16000,0)

Size of each monthly payment = $161.69 per month

7 0
3 years ago
Points P, Q, and S are collinear. What is mZRQS?<br> R<br> ((x + 1)<br> (3x – 5)°<br> s
kiruha [24]

Answer:

  m∠RQS = 47°

Step-by-step explanation:

The collinear points form a "straight angle," one whose measure is 180°. That is the sum of the marked values:

  (3x  -5) +(x +1) = 180

  4x = 184

  x = 46

  m∠RQS = (x+1)° = (46+1)°

  m∠RQS = 47°

8 0
4 years ago
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