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Ivenika [448]
3 years ago
13

Prove that there does not exist integers m and n such that 2m+4n=7

Mathematics
1 answer:
slamgirl [31]3 years ago
8 0
2m+4n=7\iff m+2n=\dfrac72

There is no choice of integers (m,n) such that the left hand side is a rational number.
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A shirt regularly priced at $36.00 was on sale for 25% off.
VLD [36.1K]

Answer:

C

Step-by-step explanation:

find out the 35% OF 36.00

36x35%=9

36-9=27

3 0
3 years ago
There are 55 apples in each row. There are 5000 rows. How many apples in all?
koban [17]

Answer:

you would take the amount of apples per row and multiply it by the amount of rows, so in this case it would be 55x5000 which is 275000

there's 275000 apples in all

8 0
3 years ago
1. two positive numbers are in
SIZIF [17.4K]

Answer:

12

Step-by-step explanation:

the ratio of the 2 numbers = 3 : 4 = 3x : 4x ( x is a multiplier ) , then

3(3x) + 2(4x) = 68 , that is

9x + 8x = 68

17x = 68 ( divide both sides by 17 )

x = 4

smaller number = 3x = 3 × 4 = 12

7 0
2 years ago
-3x - 3/4 = 9 helpppppppp
nlexa [21]
-3x - 3/4 = 9
-3x - 3/4 + 3/4 = 9 + 3/4
-3x = 9 3/4
I change 9 3/4 to improper fraction
-3x = 39/4
-3x / -3 = 39/4 / -3
X = 39/4 x -1/3 (change division to multiplication so that you can complete the problem)
X = -39/12
You can convert that if you want to -3 3/12
So x = -3 3/12
Simplify to x = -3 1/4
6 0
3 years ago
Mandy was flying in a helicopter at an altitude of 500 feet. The helicopter descended 450 feet. What is Mandy's altitude now
Anika [276]
500-450=50. 50 feet altitude.
6 0
3 years ago
Read 2 more answers
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