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2 years ago

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A doctor is studying heights of newborn babies. The doctor uses 20 inches as a reference point. Babies in the study receive a sc

ore to show how close they are to 20 inches. A baby that is 21 inches long receives a score of +1.

1 answer:

mixas84 [53]2 years ago

3 0

Answer:

the answer would be -2

Step-by-step explanation:

You might be interested in

Help<br> Cannot use the tactic of moving the variables in my school<br> -5-3w=7w

nevsk [136]

Collect like terms
-3w - 7 w =5
Divide both sides by -10
-10w =5
w = -1/2

7 0

2 years ago

If d= the number of dogs ,which variable expression represents the phase below? The sun of the number of dogs and the 6 cats

Morgarella [4.7K]

Answer:

d + 6

Step-by-step explanation:

Given that :

Number of dogs = d

The sum of the number of the number of dogs and 6 cats is :

This is a straightforward question :

We take the sum of d and 6

Hence, we have

d + 6

5 0

2 years ago

A wine maker has 2 wine barrels labeled A and B. There is more wine in barrel A than in barrel B. The wine maker wants the 2 bar

Rudiy27

Answer:

Step-by-step explanation:

Gonna take this nice and slow. First, at the end it says together both barrels have 48 pints when equal, which means added together they have 96. This stays even as we pout from one to the other. So A+B = 96. Keep that in mind. Also I hope you're good with your systems of equations.

One step at a time. We start with A and B

First, he doubles what is in B, which means he takes that much out of A.

A turns to A-B and B turns to 2B, hopefully you understand that.

Second A is doubled, which means that much is taken out of B.

A-B turns to 2(A-B) or 2A - 2B and 2B turns to 2B - (A - B) or 3B - A

Third and finally B is doubled again

2A - 2B turns to 2A - 2B - (3B - A) or 3A - 5B and 3B - A turns to 2(3B - A) or 6B - 2A

Now we have our system.

A + B = 96

3A - 5B = 6B - 2A or to make it a little nicer 5A = 11B

Let me know if you need help witht he system solving, but you wind up with

A = 66

B = 30

Again, let me know if you don't understand some part.

7 0

3 years ago

Read 2 more answers

Whats the m.a.d. of 0, 3, 6, 9, 11, 13, 14? n=7

KatRina [158]

Answer:

4 2/7

Step-by-step explanation:

It is convenient to let a spreadsheet or graphing calculator do the tedious math for you. (See the attachment.)

_____

The sum of the numbers is 56, so their average is 56/7 = 8. Then the absolute deviations from average are ...

... 8, 5, 2, 1, 3, 5, 6

and the total of these is 30. The mean absolute deviation is this sum divided by the number of numbers, 7, so is ...

... 30/7 = 4 2/7

_____

<em>More about Absolute Deviation from Average</em>

"Absolute" here refers to the absolute value function, which drops the sign of a negative number. The absolute deviation of the data value 0 is ...

... |0 - 8| = |-8| = 8

For 3, it is ...

... |3 - 8| = |-5| = 5

4 0

3 years ago

If Jack gets a 10% commission on every dollar of sales. In one month he makes 2500. What were his sales in dollars that month?

padilas [110]

Jack earned a total of $250 in sales for the month.

3 0

2 years ago