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Trava [24]
3 years ago
7

1/2 the weight of a brick +20= 1/3 the weight of a brick +30. What is the weight of the brick?

Mathematics
1 answer:
prisoha [69]3 years ago
6 0
1/2x+20=1/3x+30
Subtract 20 on both sides
1/2x=1/3x+10
Subtract 1/3x on both sides
1/6x=10
Multiply by 6 on both sides
X=60
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ε = {x: 2 ≤ x ≤30, x is an integer}, M = {even numbers}, P = {prime numbers}, T = {odd numbers} Find: M-T
german

Answer:

M-T={even numbers}

Step-by-step explanation:

We are given that

\varepsilon={x:2\leq x\leq 30,x is an integer}

M={even numbers}

P={Prime numbers}

T={odd  numbers}

We have to find M-T

M\cap T=\phi

We know that

A-B=A-A\cap B

Using the formula

Then, we get

M-T=M-M\cap T

M-T={even numbers}-\phi

M-T={even numbers}

5 0
3 years ago
Multi-step linear inequalities
Natali5045456 [20]

Step-by-step explanation:

5y + 3 > -7y + 13

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3 years ago
IXL Problem needs to be answered.
Colt1911 [192]

Answer:

He put $1,183 for the computer

Step-by-step explanation:

first you have to multiply 16.25 time 13 and then multiply that with 14 since there is 14 days in two weeks. And then that with .4.

And you'll get 1,183

6 0
3 years ago
Find the 43rd term of the sequence 13.1,3.1,-6.9,-16.9,
lilavasa [31]
<span> Arithmetic sequence.
a</span>₁ = 13.1; a₂ = 3.1

d = a₂ - a₁ = 3.1 - 13.1 = -10
a₄₃ = a₁ + d(n-1) = 13.1 - 10(43-1) = 13.1 - 10 * 42 = 13.1 - 420 = -406.9

Answer: -406.9

4 0
4 years ago
Read 2 more answers
If Cara works 14 hours, she earns $84. If she works 19 hours, she earns $114. Let y represent the total amount of money that Car
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Answer:

Step-by-step explanation:

14r=84, r=84/14=6, so the hourly rate is $6 an hour so

y(x)=6x

Since this is of the form y/x=k or y=kx it is directly proportional. Inverse proportion is of the form yx=k or y=k/x

7 0
3 years ago
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