A gerbil eats about 1/4oz of food per day. About how many pounds of food can a gerbil eat in a year?

Mathematics

1 answer:

jek_recluse [69]4 years ago

4 0

1/4(365) = 365/4 oz = 365/4(16) pound = 365/64 pound

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5. Suppose y varies directly with x, and y= 14<br> when x= 2. What is y when x = 6?

Oduvanchick [21]

Answer:

$\boxed{42}$

Step-by-step explanation:

The formula for direct variation is

y = kx

1. Calculate the value of k

y = 14 when x = 2

$\begin{array}{rcl}14& = & k \times 2\\k & = & \dfrac{14}{2}\\& = & 7\\\end{array}$

2. Value of y

k =7; x = 6

$\begin{array}{rcl}y & = & 7 \times 6\\ & = & \mathbf{42}\\\end{array}\\y = \boxed{\mathbf{42}} \text{ when x = 6}$

7 0

3 years ago

The heights of the trees for sale at two nurseries are shown below. Heights of trees at Yard Works in feet : 7, 9, 7, 12, 5 Heig

Troyanec [42]

Answer:

The mean of tree heights at Yard Works is 8 feet and at Grow Station is 9 feet.The mean absolute deviation of the tree heights at both yards is 2.

Step-by-step explanation:

1). Height of the trees at Yard Works are = 7,9,7,12,5 feet

So mean height of the trees = (7+9+7+12+5)÷5

= 40÷5 =8 feet

Standard deviation of the trees at Yard works = ∑(║(height of the tree-mean height of the tree))║/(number of trees)

(height of the tree-mean height of the tree)= ║(7-8)║+║(9-8)║+║(7-8)║+║(12-8)║+║(5-8)║ = (1)+1+(1)+4+(3)= 10

Therefore standard deviation = (10)/(5) =2

2). In the same way mean height of the trees at Grow Station=(9+11+6+12+7)/5= 45/5 = 9

Now we will calculate the mean deviation of the tress at Grow Station

= ∑║(height of the tree-mean height of the tree)║/(number of trees)

= ║(9-9)║+║(11-9)║+║(6-9)║+║(12-9)║+║(7-9)║/(5)

= (0+2+3+3+2)/5

= 10/5 =2

Therefore The mean of tree heights at Yard Works is 8 feet and at Grow Station is 9 feet.The mean absolute deviation of the tree heights at both yards is 2.

7 0

4 years ago

Read 2 more answers

Leo picked 1/3 pound of strawberries. that afternoon, leo's sister ate 1/5 of the strawberries. how many pounds of strawberries

prisoha [69]