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snow_lady [41]
3 years ago
14

61. Mowing and shoveling. When Mr. Wilson came back

Mathematics
1 answer:
Alexxx [7]3 years ago
7 0

Answer:

9

Step-by-step explanation:

3n(n representa number of time)+2n =50

50÷2=25( shoveling side walk)

25÷3= 8.3333333333(mowling)

25+8.3333333333=33.3333333333

last year:

2n+ 3n=45

45÷5=9 ( divide 5 because you add 2+3)

shoveling once=9

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Find the perimeter and area of the figure.
Travka [436]

Answer:

The perimeter is 20 cm.

The area is 25 cm^2.

Step-by-step explanation:

The perimeter is the distance around the figure.

This is a square, so each side is the same length.

There are four sides, so

5 + 5 + 5 + 5 = 20 cm

The area of the figure is

s^2

where s is a side

so 5 * 5 = 25 cm^2

7 0
3 years ago
Which equation demonstrates the additive identity property?
Bezzdna [24]

Answer:

Step-by-step explanation:

Solve for o in the equation (7 + 4) + (7 - 41) = 14©(7 + 4) + 0 = 7 + 41o(7 + 4)(1) = 7 + 41o(7 + 41) + ( - 7 - 41) = 0

We first need to simplify the expression removing parentheses

Simplify 41o(7 + 4): Distribute the 41o to each term in (7+4)

41o * 7 = (41 * 7)o = 287o 41o * 4 = (41 * 4)o = 164o

Our Total expanded term is 287o + 164o

Simplify 41o(7 + 41): Distribute the 41o to each term in (7+41)

41o * 7 = (41 * 7)o = 287o 41o * 41 = (41 * 41)o = 1681o

Our Total expanded term is 287o + 1681o

Our updated term to work with is (7 + 4) + (7 - 41) = 14©(7 + 4) + 0 = 7 + 287o + 164o(1) = 7 + 287o + 1681o + ( - 7 - 41) = 0

We first need to simplify the expression removing parentheses

Simplify 164o(1): Distribute the 164o to each term in (1)

164o * 1 = (164 * 1)o = 164o Our Total expanded term is 164o

Our updated term to work with is (7 + 4) + (7 - 41) = 14©(7 + 4) + 0 = 7 + 287o + 164o = 7 + 287o + 1681o + ( - 7 - 41) = 0

Step 1: Group variables: We need to group our variables (7 and 14©(7. To do that, we subtract 14©(7 from both sides (7 - 14©(7 = 14©(7 - 14©(7

Step 2: Cancel 14©(7 on the right side: 0o = 0 Step 3: Divide each side of the equation by 0

0o 0 = 0 0 o =

5 0
3 years ago
Read 2 more answers
What is the answer to this problem 0.05n+0.10(2n)=9.25
kolbaska11 [484]

Answer: n=37

Step-by-step explanation:

0.05n+0.10x2n=9.25

0.25n=9.25

n=9.25/0.25

n=37

6 0
3 years ago
Plz, Help I'll give brainlist to whoever answers all questions!
Tatiana [17]

Answer:

Step-by-step explanation:

1. Area => 7.5 x 2 = 15 m² (Choice B)

2. Area => 5 x 11 = 55 in² (Choice B)

3. Area = (12 x 18) * 0.5 = 108 cm² (Choice A)

4. Triangular Pyramid (Choice D)

6. Area of Rectangle => 12 x 9 = 108

   Area of Triangle => 7x6 = 42

   Sum of Area => 150

7.  Surface Area => (4x4)x6 = 96 in² (Choice D)

8. Volume = 3x15x14 = 630 in³ (Choice D)

7 0
3 years ago
Read 2 more answers
Someone pls help me solve this ;-;
Mazyrski [523]
5∛x + 4 = 44
5∛x = 40
  ∛x = 8
    x = 8^3
    x = 512

answer
C. 512
8 0
3 years ago
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