MATHEMATICS MIDDLE SCHOOL

Marta has 1 cubic yard of sand to build a wall in the shape of a rectangular prism that is 20 inches tall and 5 inches wide. To the nearest foot, what will be the length of this wall?

Answers

Answer 1

Answer:

Answer:

466,56 inches

Step-by-step explanation:

1 yard = 36 inches

1 cubic yard = 36*36*36 = 46656 cubic inches

46656 = 20*5*l => l = 46656/100 = 466, 56 inches

Answer 2

Answer:

117 ft

Step-by-step explanation:

1 yd³ = 36³ in³ = 46656 in³

Volume = ⅓ (5 × length) × 20

46656 = ⅓ (5 × length) × 20

length = 1399.68 in

1399.68/12 ft

= 116.64 ft

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Answers

so 4 divided into 5 parts
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The width of a computer monitor is 30 cm. If the perimeter is 144 cm, what is the area of the computer monitor?

Answers

$perimeter= 144 \ cm\n width : \ w= 30 \ cm \n length: \ l= ?\n \nPerimeter = 2 w + 2l \n \n144=2 \cdot 30 +2l \n \n 144=60+2l$

$2l=144-60 \n \n2l=84 \ \ /:2 \n \n l=42 \ cm \n \nArea = l\cdot w \n \nA=42*30 =1 260 \ cm^2 \n \nAnswer : \ area \ of \ the \ computer \ monitor : 1260 \ cm^2$

Susie has $15.66 to spend on lunch for herself and her friend if she wants to spend an equal amount on each person how much will Susie spend on each of them

Answers

Divide 15.66 by 2 and you get 7.83. So your answer would be $7.83

Explain why you should record a 1 in the tens column when you regroup in an addition problem.

Answers

The regrouping method help to make a sum equation became easier by separating the numbers into 'tens' and 'onesWhen the total amount of 'ones' has reach 10 or more , you should record a 1 in the tens column to show that the value of 'tens' has increased
Hope this helps. Let me know if you need additional help!

cedric has 1 red pen, 1 blue pen, and 1 black pen in his desk. if he randomly takes two of them from his desk without replacement, what is the probility that he will take the blue and black pen?