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Lana71 [14]
2 years ago
11

The equation 3x = 12 can be rewritten as x = 12 ÷ 3. True or False

Mathematics
2 answers:
Alja [10]2 years ago
8 0

Answer:

very much true my dude

Step-by-step explanation:

................

BARSIC [14]2 years ago
3 0

Answer:

True

Step-by-step explanation:

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Just number 2 please i’ve tried many times... i need an equation and the answer :)
Triss [41]

Keller collected $62.48 and Izzy collected $47.83 and J collected $19.98

Step-by-step explanation:

Step 1; Assume that J collected $x, Keller collected $y and Izzy collected $z. All three combined collected $125.95, so

x + y + z = 125.95, take this as equation 1.

From the given data, the following equations can be formed.

y = 42.50 + x or x = y - 42.50 take this as equation 2 and

y = 15 + z, take this as equation 3.

Step 2; Now we must determine x and y in terms of z, so that equation 1 can be solved (the equations can be in terms of any term x, y or z.)

Rearranging equation 2 and 3,

we get 15 + z so  x = y - 42.50, y = x = 15 + z - 42.50, take this as equation 4,

If we substitute equations 4, 2 in 1, we get

(15 + z - 42.50) + (15 + z) + z = 125.95,

3z - 12.5 = 129.95,

3z = 142.45, so z = 47.833.

Substitute z = 47.833 in equation 3.

y = 15 + 47.8333 = 62.4833.

Substitute y = 62.4833 in equation 2,

x = 62.4833 - 42.50 = 19.9833.

Rounding of the values of x,y, and z to nearest hundredth we get

x = $19.98, y = $62.48 and z = $47.48.

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dem82 [27]

Answer:

<em>31° </em>

Step-by-step explanation:

5 0
3 years ago
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