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Phantasy [73]
3 years ago
15

Help me please. 10 pts.

Mathematics
1 answer:
IrinaK [193]3 years ago
8 0

3.)

Variables:

New tablet cost (575),

Money already saved, (56),

Money saved per week(14w)

Write an Equation:

The amount of weekly money you need to earn must cover the leftover cost needed to buy the tablet, therefore:

money_needed - money_you_have = money_earned_per_week

575 - 56 = 14w

Solving:

575 - 56 = 14w

519 = 14w

37.071428 = w

37 weeks needed

You solve the other two on your own.

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Which of the following illustrates the truth value of the given conditional statement? p: 2 + 2 = 4 q: 7 + 1 = 7 T F → F T T → T
musickatia [10]

Answer:

T F → F is the correct answer.

Step-by-step explanation:

In the given question if p illustrates p: 2 + 2 = 4

which is true so the truth value of this statement p is True.

Now the other statement q illustrates q: 7 + 1 = 7

Which is a false statement so the truth value of this statement is False.

As we know when "p→q ( p implication q), the truth value of implication is False only when truth value of p is True and for statement q the truth value is False."

We can see from the truth table truth value of p→q will be False.

So T F → F

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4 years ago
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snow_lady [41]

Answer:

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Step-by-step explanation:

Given:

\displaystyle \large{3(3x-y)-(y-3x)}

To factor this kind of expression, first, find the common factor.

\displaystyle \large{3(3x-y)-(-3x+y)}\\\displaystyle \large{3(3x-y)+(3x-y)}

Notice that in the expression, we have both same (3x-y). Therefore, (3x-y) is our factor.

Let u = 3x-y

\displaystyle \large{3u+u}\\\displaystyle \large{4u}

Change u back to 3x-y:

\displaystyle \large{4(3x-y)}

Therefore, the factored expression is 4(3x-y).

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