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masya89 [10]
4 years ago
7

Level B: Lexie wanted to have a heel-toe race with her older brother, Josh, and her sister,

Mathematics
1 answer:
grandymaker [24]4 years ago
8 0
They should have a total of steps as 20
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Solve this problem 8x + 4(x-1)<br> a. 32x+3<br> b. 12x-4<br> c. 12x+4<br> d. 9x-4
Lilit [14]

Answer:

b

Step-by-step explanation:

8x +4(x -1)

<em>Expand by multiplying 4 into each term inside the bracket:</em>

= 8x +4(x) +4(-1)

= 8x +4x -4

<em>Simplify</em>

= 12x -4

Thus, the answer is b.

7 0
2 years ago
Read 2 more answers
Horn lengths of Texas longhorn cattle are normally distributed. The mean horn spread is 60 inches with a standard deviation of 4
german

Answer:

range is  between 55.5 to 64.5

Step-by-step explanation:

Horn lengths of Texas longhorn cattle are normally distributed. The mean horn spread is 60 inches with a standard deviation of 4.5 inches

68% is 1 standard deviation from mean

To get the range of 1 standard deviation we add and subtract standard deviation from mean

mean = 60

standard deviation = 4.5

60 - 4.5= 55.5

60+4.5 = 64.5

1 standard deviation is between 55.5 to 64.5

That is 68% range is  between 55.5 to 64.5

8 0
4 years ago
To rent a building for a school dance Eva paid $120 +2.53 students who attend it if you pay the total cost of $325 how many seas
Fantom [35]

Answer:

81

Step-by-step explanation:

325-120=205

205/2.53=81

3 0
3 years ago
Read 2 more answers
Assume you have a credit card balance of $1,000. Your inter est rate on the credit card is 18 percent, and your minimum monthly
Vera_Pavlovna [14]
For 18% it will take 2 years to pay
For 3 years payment will be $36.50
For 14% it will take 1.9 years or 23 months
7 0
3 years ago
Katie’s baby sister drinks 4 ounces of apple juice with breakfast every morning. There was a full gallon of juice on the table.
Vlad1618 [11]

Answer: 112 oz

First we have to work with the same units. According to the International System of Units (SI), the Liter (L) is the unit of measurement for liquids, however, we are going to use the ounce (oz) in this case, as it is the unit of measure of the juice that Katie's baby sister drinks.

In addition:

1L=33.814 oz    (1)

1 pint=0.5L\approx 16 oz   (2)

1 gallon=3.78 L\approx 128 oz    (3)

Knowing this, we can calculate  how much of apple juice is left for the baby after Katie drank a portion.

In order to do this, we have to substract the amount of juice Katie drank (1 pint\approx 16 oz) to the total amount of juice in the full gallon (1 gallon\approx 128 oz):

128 oz-16 oz=112 oz    

This means that there are 112 oz left for Katie’s baby sister.

In addition, taking into account the baby drinks  4 oz each day, the 112 oz left are equivalent to approximately 28 days.

5 0
3 years ago
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