the number cubes the Fifth grade math classes use are packed into a box. when the box is full, it has 5 rows of 4 cubes with 6 layers of cubes. Mrs. Benson sees that one layer of cubes is missing from the box. how many number cubes are in the box? (a) 96 (b) 100 (c) 90 or (d) 50

Answers

Answer 1
Answer: 5 rows of 4 cubes will be 20 cubes per row. with 6 layers that will be 6x20 which is 120. minus a row of 20 would be (b) 100

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An elephant can run one over four of a mile in 36 seconds. At this rate, which expression can be used to determine how fast an elephant runs in miles per hour?

Answers

Answer:

The expression

Step-by-step explanation:

The length of a rectangular football field, including both end zones, is 120 yards. The area of the field is 57,600 square feet. For numbers 3a-3d write true or false for each statement.3a. The width of the field is 480 yards


3b. The length of the field is 360 feet.


3c. The width of the field is 160 feet.


3d. The area of the field is 6,400 square yards.

Answers

Answer:

3a.False,the width is 53.33 yards

3b.true, the Length is 120 yards=360 feet

3c.True, width of the field is 160 feet.

3d. True,rea of the field is 6,400 square yards.

Step-by-step explanation:

Hello , I think I can help you with this

to solve this you must know the equivalence between feet and yard, which is

3 feet = 1 yard

Also, the area of  a rectangle is the product of its length by its width

Area=length *width

Step 1

convert 120 yards into feet using a rule of three

3 feet = 1 yard

x feet= 120 yards

3/1=x/120

x=(120*3)/1

x=360 feet

so

120 yards= 360 feet

Step 2

isolate the width from the area´s equation to find out it.

Area=57600 square feet

length=360 feet

Area=length *width

width=Area/length

Width=57600 square feet/360 feet

Width=160 feet

Step 3

convert 160 feet into yards

1 yard= 3 feet

x yard= 160 feet

1/3=x/160

x=(1*160)/3

x=53.33 yards

width=53.33 yards

the area is (square yards)

Area=120 yards*53.33 yards

Area=6400 square yards

Step 4

Answer the questions.

3a.False,the width is 53.33 yards

3b.true, the Length is 120 yards=360 feet

3c.True, width of the field is 160 feet.

3d. True,rea of the field is 6,400 square yards.

Have a nice day.

-3.1x+7-7.4x=1.5x+6(x-3/2

Answers

Answer:

x=8/9

Step-by-step explanation:

-3.1x+7-7.4x=1.5x+6(x-3/2)

-3.1x-7.4x+7=1.5x+6x-9

-10.5x-1.5x-6x=-9-7

-18x=-16

18x=16

x=16/18

simplify

x=8/9

HELP ME PLEASE I BEG YOU!!!!!!!!!!!!!

Answers

the answer to this are:
1) D
2) A and B
3) C

hope this works.

3.) r=2: 2+4/15= 6/15=2/5

2.) -3a-15=a: the fraction is negative. meaning the answer is negative, leaving a and c as choices. You can't square a since it is on different sides of the equation leaving you with c.

1.) answer is 5(x+4)=30: 3 is 2, meaning you would use the 2. 

3.4 - 5 - 10.4 Can you please show your work

Answers

The answer is -12, okay since 5 plus 10.4 is 15.4, we subtract 15.4 from 3.4 and we get -12

     3.4
-  10.5
---------
   -12.0  =   -12

Bobby made cookies. the circumference of cookies are 6 cm. what is the diameter of the cookies?

Answers

To find the circumference you would multiply the diameter by pi(3.14) so you do the opposite. Divide 6 by 3.14 (pi) and you should get your answer: 19.1 or something similar.