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Anna11 [10]
3 years ago
15

What is the answered to 400÷2

Mathematics
2 answers:
Katarina [22]3 years ago
8 0
They answer is 200 it's not hard just split 400 in half
Vlad1618 [11]3 years ago
8 0
The answer is 200. Just slip 400 in half.
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30% of number A is 10 more than 20% of number B. 30% of number B is 35 more than 20% of number A. Find the numbers A and B.
anygoal [31]

Answer:

A = 76.85

B =65.28

Step-by-step explanation:

(30/100)A = 10 + (20/100)B

0.3A - 0.2B = 10 ...... equation (i)

(30/100)B + 35 = (20/100)A

0.2A - 0.3B = 35 ........ equation (ii)

From equation (i)

0.3A = 10 - 0.2B

A = (10 - 0.2b) / 0.3

A = 33.33 - 0.67B ........equation (iii)

Put equation (iii) into equation (ii)

0.2(33.33 - 0.67B) - 0.3B = 35

6.67 - 0.134B - 0.3B = 35

0.434B = 35 - 6.67

B = 28.33 / 0.434

B = 65. 275 = 65.28

Put B = 65.28 into equation (i)

0.3A - 0.2B = 10

0.3A - 0.2(65.28) = 10

0.3A - 13.056 = 10

0.3A = 10 + 13.056

A = 23.056/ 0.3

A = 76.85

5 0
3 years ago
What bag is heavier 2 kilograms or 3000grams​
pav-90 [236]

3000 grams because 2 kilograms is 2000 grams and 3000 is greater than 2000

3 0
3 years ago
Read 2 more answers
Find the transformations from y=x^2 for the following equation: f(x)=(x+4)^2 -9
Masteriza [31]
Y=x^2 moves right 4, down 9.
5 0
3 years ago
To eliminate the terms and solve for y in the tewest steps, by which constants should the equations be multiplied by before
Novosadov [1.4K]

Answer:

the equation is not shown...

Step-by-step explanation:

but to solve for y you should use the first equation that is use the coefficient of x in the first equation to multiply all the terms in the second equation.

And use the coeffient of x in the second equation to multiply the the terms in the first equation.

It would have been better if the equation was shown for better explanation.

6 0
3 years ago
6.
photoshop1234 [79]

Answer:

The answer is in the attached file below

Step-by-step explanation:

7 0
3 years ago
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