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Korolek [52]
3 years ago
9

Math hard

Mathematics
2 answers:
Liula [17]3 years ago
7 0
This is the answer
C:18x1=1x18
photoshop1234 [79]3 years ago
5 0

Answer:

C:18x1=1x18

when multiplying 2 numbers, the result is the same in either order.

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Sum of two digit number is9.When we interchange the digits it is found that the resulting new number becomes twice the other num
ruslelena [56]

Answer:

4 and 5

Step-by-step explanation:

Let the numbers be x and y

If their sum is 9, hence;

x + y = 9 ....1

When reversed

10y+x = 2(10x+y)

10y+x = 20x + 2y

10y - 2y = 20x - x

8y = 19x

y = 10x/8 ...2

Substitute equation 2 into 1;

From 1;

x+y = 9

x +(10x/8) = 9

18x/8 = 9

18x = 72

x = 72/18

x = 4

Since x+y =9

y = 9-x

y =9-4

y = 5

Hence the numbers are 4 and 5

8 0
3 years ago
Answer the following question and will mark Brainliest
spin [16.1K]

a) f(4) = 3*4 - 4

          = 8

b) h(-3) = 5 - ( - 3)

             = 5 + 3 = 8

c) h(4) - f(-5) = 1 + ( -19)

                     = -18

have a nice day <3

7 0
3 years ago
What is the ratio of 5.478 and 7.522 in mathematics
exis [7]

Answer:

Written in standard ratio form-

5.478 : 7.522

other ways of expressing it-

5.478/7.522 or

5.478 to 7.522

Simplified-

0.72826..... as an irrational number

3 0
3 years ago
PLEASE HELP, I don’t know how to do this...like at all
Svet_ta [14]

Answer:

arc ? = 255°

Step-by-step explanation:

arc DB = 180° - 75° = 105°

arc ? = 360° - 105° = 255°

6 0
2 years ago
3÷2.52 what the answer I’m struggling
SOVA2 [1]
3/2.52 is 1.5
In other words it is 1 1/2
3 0
3 years ago
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