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skad [1K]
3 years ago
11

What is the least common multiple and greatest common factor of 24 and 21

Mathematics
1 answer:
Iteru [2.4K]3 years ago
7 0

LCM: <span>2 x 2 x 2 x 3 x 7 = 168</span> 

GCF: 3

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The math clubs car can travel 9 meters in a second. The race track for the soap box derby is 63 meters long. How many seconds wi
zhenek [66]

Answer: it will take 7 seconds

Step-by-step explanation: 9 x 7 = 63

5 0
3 years ago
Solve the system of equations.<br> 12x - 5y = –20<br> y=x+4<br> 2 =<br> Y=
VARVARA [1.3K]

Answer:

Solution :

{x,y} = {0/14261512,4}

Step-by-step explanation:

Solve by Substitution :

// Solve equation [2] for the variable y

[2] y = x + 4

// Plug this in for variable y in equation [1]

[1] 12x - 5•(x +4) = -20

[1] 7x = 0

// Solve equation [1] for the variable x

[1] 7x = 0

[1] x = 0

// By now we know this much :

x = 0

y = x+4

// Use the x value to solve for y

y = (-0/14261512)+4 = 4

4 0
3 years ago
Read 2 more answers
What is the answer ​
Reika [66]

Answer:

35 mi²

Step-by-step explanation:

Let's subdivide the figure, as shown.

The lower part is a rectangle whose area is (5 mi)(18 mi) = 90 mi².

The upper part is a trapezoid whose area is found by averaging the length and multiplying the result by the width (8 mi - 5 mi), or 3 mi.

Area of trapezoid:

     12 mi + 18 mi

  ------------------------  =  15 mi             Width of trapezoid = 3 mi

                2

Thus, the area of the trapezoid is (3 mi)(15 mi) = 45 mi²

and the total area of the entire figure is

45 mi² + 90 mi² = 135 mi²

3 0
3 years ago
Math / graphing / Help please
elena-s [515]
Y - 2 = -3/4 (x - 6)
y = -3/4 (x - 6) + 2
When, x = -2,
y = -3/4 (-2 - 6) + 2 = -3/4 (-8) + 2 = 6 + 2 = 8
One point is (-2, 8)
When, x = 2,
y = -3/4 (2 - 6) + 2 = -3/4 (-4) + 2 = 3 + 2 = 5
Another point is (2, 5)
7 0
3 years ago
Help!
dsp73
Your answer in scientific notation is 2.355 * 10^14
6 0
3 years ago
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