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Umnica [9.8K]
3 years ago
10

Which number gives you an irrational sum when you add it to 8

Mathematics
1 answer:
andreev551 [17]3 years ago
8 0
If x is rational then x + n is rational
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2 &lt; X &lt; 8<br> x is an integer.<br> Write down the possible values of x.
Rufina [12.5K]

answer: 3, 4, 5, 6, 7

4 0
2 years ago
Estimating with percents: Isaac and his sister plan to surprise their parents by buying then each a pair of shoes. They agree th
morpeh [17]

for estimating round both the price of shoes and the percentage to round numbers

97.65 is close to 100, so use 100 for the price of shoes

68% is close to 70 so use 70%

then multiply 100 by 70 %,

100 *70% = 70 dollars

so Isaac would pay around 70 dollars

5 0
2 years ago
Read 2 more answers
The coldest surface temperature on the Moon is 57 degrees colder than twice the coldest surface temperature on Earth. What is th
german
28.5  is the coldest surface temperature on Earth
5 0
3 years ago
DIG DEEPER! Solve the<br> 2x – y + 3z = -1<br> x + 2y - 4z = -1<br> y -- 2z = 0<br> The solution is
vovangra [49]

Answer:

x = - 1, y = 2, z = 1

Step-by-step explanation:

Given the 3 equations

2x - y + 3z = - 1 → (1)

x + 2y - 4z = - 1 → (2)

y - 2z = 0 → (3)

Add (1) and (3) term by term

2x + z = - 1 → (4)

Multiply (1) by 2

4x - 2y + 6z = - 2 → (5)

Add (2) and (5) term by term

5x + 2z = - 3 → (6)

Multiply (4) by - 2

- 4x - 2z = 2 → (7)

Add (6) and (7) term by term

x = - 1

Substitute x = - 1 into (4)

- 2 + z = - 1 ( add 2 to both sides )

z = 1

Substitute x = - 1, z = 1 into (2)

- 1 + 2y - 4 = - 1

- 5 + 2y = - 1 ( add 5 to both sides )

2y = 4 ( divide both sides by 2 )

y = 2

solution is (x, y, z ) = (- 1, 2, 1 )

7 0
3 years ago
Bill has seven one-piece jump suits, four pairs of work pants, and six work shirts. He either wears a jump suit, or pants and a
BaLLatris [955]
7+4+6=17+22diferrent outifits=31 possible outfits
6 0
3 years ago
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