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Harlamova29_29 [7]
3 years ago
7

Kelsey has a new baby brother! He weighs 8 lbs 3 oz. The doctor said the baby should gain about 5 ounces per week. At that rate,

how much should the baby weigh-in 3 months (12 weeks)?
Mathematics
1 answer:
yarga [219]3 years ago
5 0
Equation: 0.5x + 8.3
Plug in 12 for x and solve
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Write the improper fraction as a mixed number in simplest form. 11/2
pantera1 [17]

Answer:

5 and 1/2

Step-by-step explanation: 2 goes into 11 5 times without passing it. That one that is left over would be the numerator and 2 as the demonator.

5 0
2 years ago
The average of 10 numbers is -5. A new number is added to the list making the average -6. What is the new number?
Shtirlitz [24]

Answer:

- 16

Step-by-step explanation:

Average is calculated as

average = \frac{total}{count}

Thus for the given 10 numbers we have

\frac{total}{10} = - 5 ( multiply both sides by 10 )

total = - 50

let the number added be x, then

\frac{total+x}{11} = - 6 ( multiply both sides by 11 )

total + x = - 66, that is

- 50 + x = - 66 ( add 50 to both sides )

x = - 16

The new number is - 16

4 0
3 years ago
If we consider the toss of four coins as an experiment, how many equally likely outcomes does the sample space have?
Arturiano [62]
There are 16 possible outcomes.

This is found by taking the number of possible outcomes for each toss, 2, and raising it to the 4th power (for 4 tosses):

2⁴ = 2*2*2*2 = 16
6 0
3 years ago
PLEASE HELP ! The total cost after tax to repair Kimber's cracked phone screen is represented by 0.04(30h)+30h where h represent
Ronch [10]

Answer: The term 0.040(30h) represents the amount of tax she must pay.


Explanation:


The functin 0.04(30h) + 30h, has two terms; the second term, 30h, represents cost due to h hours at at unit of 30, and the first term 0.04(30h) is the additional amount due to the taxes over h hours at the unit rate of 30.


When you add a tax rate of 4% to 30h, you get the the amount of taxes over the 30h.


The calcualtion is: (4/100)×(30h) = 0.04(30h). Hence, you conclude that 0.04(30h) is the amount of tax she must pay.

6 0
3 years ago
Read 2 more answers
What is the principal square root of ?<br><br> 5<br> 25<br> 50<br> 125
Triss [41]

Answer:

here look

Step-by-step explanation:

The principal square root is the positive number square root. Unless otherwise stated, "the square root" of a number refers ONLY to the principal square root.

7 0
3 years ago
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