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vovikov84 [41]
3 years ago
11

David went to a concession stand and bought three pretzels and four sodas and paid a total of $17 for them. Shamel went to the s

ame stand and bought five pretzels and two sodas and paid a total of $19.
Mathematics
1 answer:
marissa [1.9K]3 years ago
8 0

Answer:

Sooooooo

Step-by-step explanation:

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Zoe thinks of a number. She multiplies it by 3 and adds 4. She gets the same answer when she adds 5 to the number and then multi
Fiesta28 [93]

Answer:

Zoe's number is 6

Step-by-step explanation:

Let the number be 'n'

a) Multiply 'n' by 3 ⇒ n*3 = 3n

  Add 4 to '3n' ⇒ 3n + 4

Add 5 to 'n' ⇒  n +5

Multiply (n+ 5) by 2 ⇒ (n +5)*2 = 2n + 5*2 = 2n + 10

    3n + 4 = 2n + 10

b) 3n + 4 = 2n + 10

Subtract 4 form both sides

       3n = 2n + 10 - 4

       3n = 2n + 6

Subtract 2n from both sides

    3n - 2n = 6

          \sf \boxed{\bf n = 6}

8 0
2 years ago
Read 2 more answers
PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!! PLSSS HELPPPP I WILLL GIVE YOU B
Ratling [72]

Answer:

x = 10, y ≈ 11.2

Step-by-step explanation:

Hi there,

We can find the length x first since we are given the lengths of the other two sides of the bottom right triangle. In order to find the length of x, it is important to know the Pythagorean Theorem and the fact that x is the hypotenuse.

a^{2} + b^{2} = c^{2}   ← Pythagorean Theorem

<u>To find x:</u>

6^{2} + 8^{2} = c^{2}

100 = c^{2}

c = 10

Therefore, the value of x is 10.

<u>To find y:</u>

We now know the length of two sides of the upper right triangle. The value of y can be found by using the theorem again.

a^{2} + 10^{2} = 15^{2}

a^{2}  + 100 = 225

a^{2} = 125

a = \sqrt{125}

a = 11.2 when rounded to the nearest tenth.

Therefore, the value of y is approximately 11.2.

Hope this explanation is useful. Cheers.

3 0
3 years ago
As an investment, a couple bought a house for 2.7 million. Two years later sold it for $5 million what was their profit
sdas [7]
5,000,000-2,700,000=2,300,000.

The couple made a 2.3 million dollar profit
6 0
3 years ago
Which choice correctly compares the two number
Kryger [21]

7,5<7,2 →7,5>7,2

7,5>7,8 →7,5<7,8

7,9>8,7 →7,9<8,7

<u>8,6<8,8</u>

6 0
4 years ago
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What is fractions equivalent by 8/3
frez [133]
Some fractions equivalent to 8/3 are 16/6, 24/9, and 32/12.
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