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3 years ago

Please help me solve this please

Mathematics

1 answer:

Tems11 [23]3 years ago

6 0

Answer:

x = 8

Step-by-step explanation:

The sum of two interior angles in a triangle is equal to the exterior angle that's supplementary to the third interior angle:

7x + 6 + 22 = 9x + 12 add like terms

7x + 28 = 9x + 12 export like terms to the same side of the equation

28 - 12 = 9x - 7x

16 = 2x divide both sides by 2

8 = x

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A pizza costs 9.00 there is also a 3.50 delivery fee per delivery not per pizza write an expression that shows the cost of a del

lara31 [8.8K]

Answer:

a.) 9.00+3.50= 12.50

b.) 9.00x+3.50

c.) answers below

2. 9.00*2+3.50= 18.00+3.50= 21.50

3. 9.00*3 +3.50= 27.00+3.50= 30.50

4. 9.00*4+350= 36.00+3.50= 39.50

5. 9.00*5+3.50= 45.00+3.50= 48.50

Step-by-step explanation:

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3 years ago

Lin and Noah are solving the equation 7(x + 2) = 91

lidiya [134]

Lin: 7x+14=91, 91-14=7x, 77=7x, divide each side by 7, x=11
noah: x+2=91/7, x+2=13, subtract 2 from both sides, x=11

4 0

3 years ago

You are dealt two cards successively without replacement from a standard deck of 52 playing cards. Find the probability that the

kondaur [170]

Answer:

$\frac{4}{52} \times \frac{4}{51} = \frac{16}{2652} = 0.00603 = 0.603\%$

Step-by-step explanation:

There are 52 cards in a standard deck, and there are 4 suits for each card. Therefore there are 4 twos and 4 tens.

At first we have 52 cards to choose from, and we need to get 1 of the 4 twos, therefore the probability is just

$\frac{4}{52}$

After we've chosen a two, we need to choose one of the 4 tens. But remember that we're now choosing out of a deck of just 51 cards, since one card was removed. Therefore the probability is

$\frac{4}{51}$

Now to get the total probability we need to multiply the two probabilities together

$\frac{4}{52} \times \frac{4}{51} = \frac{16}{2652} = 0.00603 = 0.603\%$

5 0

3 years ago

Volume is always measured in square units. True False

bogdanovich [222]

Hello,

The answer is option B "false".

Reason:

The answer is false because the volume can be measure in anyway for example: feet, yards.

If you need anymore help feel free to ask me!

Hope this helps!

~Nonportrit

4 0

3 years ago

Read 2 more answers

What is the difference between the rational expressions below? 3x+1/x^2-5/x

Tom [10]

Answer:

(3x^2-5x-5)/(x^2+x) <--- answer

Step-by-step explanation:

3x/(x+1) - 5/x = (3x^2 - 5(x+1) )/[ x(x+1) ]

= (3x^2 - 5x - 5)/(x^2 + x)

5 0

3 years ago