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inessss [21]
3 years ago
13

To solve these problems.

Mathematics
1 answer:
olasank [31]3 years ago
5 0
<h3>Solution(s):</h3>

<u>1)</u><u> What distance did a car travel that went 70 mph for 6 hours?</u>

Given:

  • 70 miles = 1 hour

<u>Multiply the RHS by 6 to see what distance was covered by the car in 6 hours.</u>

  • 70 miles = 1 hour
  • => 70 x 6 miles = 6 hours
  • => 420 miles = 6 hours

The car traveled 420 miles in 6 hours.

<u>2)</u><u> What is the perimeter of a rectangle with a length of 7 cm and a width of 4 cm?</u>

Given:

  • Length: 7 cm
  • Breadth: 4 cm

Formula to find perimeter: 2(L) + 2(B)

<u>Substitute the values into the formula to find the perimeter.</u>

  • 2(L) + 2(B)
  • => 2(7) + 2(4)
  • => 14 + 8
  • => 22 cm

The perimeter of the rectangle is 22 cm.

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If there are 8 people, and each person has 4 coins, there are ____ times as many coins as people.
Alinara [238K]

Answer:

2 times

Step-by-step explanation:

7 0
3 years ago
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Solve 2(x – 11)2 = 128.
Andrew [12]

Answer:

Step-by-step explanation:

Multiply the numbers     2 ( x - 11 ) * 2 = 128

                                          4 ( x - 11 ) = 128

Distribute              4 ( x - 11 ) = 128

                                 4x - 44 = 128

Add 44 to both sides              4x - 44 = 128

                                                    4x - 44 + 44 = 128 + 44

Simplify                        - Add the numbers    

                                        4x - 44 + 44 = 128 + 44

                                            4x = 128 + 44

                                        - Add the numbers

                                  4x = 128 + 44

                                   4x = 172

Divide both sides by the same factor                    4x = 172

                                                                                 4x/4 = 172/4

Simplify

-     Cancel terms that are in both the numerator and denominator

                                                                4x/4 = 172/4

                                                                     x = 172/4

-Divide the numbers

                                                           x = 172/4

                                                             x = 43

5 0
2 years ago
Read 2 more answers
Australian glitter ants reproduce so that their population doubles every 15 days. If there are 3 ants initially, the equation is
Firlakuza [10]

Answer:

  4.73%

Step-by-step explanation:

  y = 3×2^(t/15) = 3×(2^(1/15))^t = 3×1.0472941^t

In this form, ...

  1 +r = 1.0472941

  r = .0472941 ≈ 4.73%

The daily increase is about 4.73%.

5 0
3 years ago
What is the value of cos0 ?
emmainna [20.7K]

Answer:

\frac{9}{10}

Step-by-step explanation:

The Law of Cosines works for any triangle and is given by:

c^2=a^2+b^2-2ab\cos \gamma, where a, b, and c are the sides of the triangle and \gamma is the angle opposite to c.

In the given triangle, assign the variables:

  • c\implies 10
  • a\implies 10
  • b\implies 18

Substituting these variables, we have:

10^2=10^2+18^2-2(10)(18)\cod \cos \gamma,\\100=100+324-360\cdot \cos \gamma,\\100=424-360\cos \gamma,\\-324=-360\cos\gamma,\\\cos \gamma =\frac{-324}{-360}=\boxed{\frac{9}{10}}

4 0
3 years ago
BRAINLEST IF CORRECT!!!!
Aleksandr-060686 [28]

x + 133 = 180

x = 180 - 133 (Linear Pair)

x = 47

Therefore x° = 47°

Answered by Gauthmath must click thanks and mark brainliest

7 0
3 years ago
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