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3 years ago

Write a numerical expression for the verbal expression. fourteen decreased by three times four

Mathematics

1 answer:

Nana76 [90]3 years ago

8 0

Answer: 14 - 3(4)

Step-by-step explanation:

Decreased just means subtract

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Steve drove at a constant rate to the beach for a vacation. In the equation below, t is the time in hours it took Steve to drive

My name is Ann [436]

310/62= hours which equals 5! hope this helped a bit.

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3 years ago

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Antoinette solves the linear equation 3(x-3)+2x+9 = 2X+ 2(x-1) using the steps shown below.

taurus [48]

Answer:

Antoinette's error

Option A) She distributed incorrectly.

Step-by-step explanation:

We are given the following information in the question:

Antoinette solves the linear equation

$3(x-3)+2x+9 = 2x+ 2(x-1)$

Antoinette made mistake in step 1 that is she did not distributed correctly.

If she would have distributed correctly, then she would have got the following solution:

$3(x-3)+2x+9 = 2x+ 2(x-1)\\\text{Step 1: }3x-9+2x+9 = 2x + 2x-2\\\text{Step 2: }5x = 4x -1\\\text{Step 3: }5x-4x = -1\\\text{Step 4: }x = -1$

Substituting x = -1 in the given equation, we gwt:

$3(-1-3)+2(-1)+9 = 2(-1)+ 2(-1-1)\\-12-2+9 = -2-4\\-6=-6\\\text{which is true}$

Antoinette's error

Option A) She distributed incorrectly.

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3 years ago

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PLEASE HELP:)))))))))

slava [35]

Answer:

see explanation

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180° , thus

y = 180° - (55 + 41)° = 180° - 96° = 84°

z and y are adjacent angles and supplementary, thus

z = 180° - 84° = 96°

x and 109° are alternate exterior angles and congruent, thus

x = 109°

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3 years ago

What is the answer to 78.2÷7

Lesechka [4]

Answer:

11.1714

Step-by-step explanation:

Just use a calculator! :)

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3 years ago

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Evaluate-a-function f(x) = <img src="https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7B7%7D" id="TexFormula1" title="\frac{x}{7}" alt="\f

OLga [1]

Step-by-step explanation:

Hey there!

f(x) = 7/x

~ Simply keep the "7" in the place where "x" is there.

$f(7) = \frac{7}{7}$

Therefore, X= 1.

Hope it helps....

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3 years ago

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