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liq [111]
2 years ago
14

What is the result of the mathematical expression below:

Mathematics
2 answers:
devlian [24]2 years ago
8 0

Answer:

5

Step-by-step explanation:

2/2 = 1

4+1=5

uysha [10]2 years ago
6 0
5 is the correct answer.
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How do you solve 3 1/4- 1 7/8 step by step?
Vilka [71]

Answer:

1 3/8.

Step-by-step explanation:

3 1/4 - 1 7/8

First convert to improper fractions:

3 1/4 = (3*4) + 1 / 4 =  13/4.

1 7/8 = (1 *8)+7 / 8 = 15/8. So we have:

13/4 - 15/8

The Lowest Common Multiple of 4 and 8 is 8 so we convert 13/4 to eighth's

13 / 4 = 13*2 / 4 *2 = 26/8

Finally: we have

26/8 - 15/8 = (26 - 15) /8

= 11 /8

= 1 3/8 (answer)

4 0
3 years ago
What is the electric field strength at a distance of 15 cm from a point charge that has 12
ivann1987 [24]
The formula is E= kQ/ d^2

k is 9x10^9
i changed 15 cm to 0.15 m

=> 9x10^9 x 12 OVER (0.15)^2

the answer is 4.8x10^12 N/C

but this is the electric field.

to find electric field STRENGTH, it’s E= F/q and you did not give a value for the force
8 0
3 years ago
I can’t figure these three out I keep getting the wrong answers any help would be great....?
allochka39001 [22]
25.) D
26.) C
27.) B
I hope this helps love! :)
5 0
3 years ago
Read 2 more answers
Help!!! i dont know what im doing!!
Sati [7]

Answer:

B is incorrect because you could set them equal to each other

6 0
3 years ago
The sum of two numbers is 39.Three times the smaller number exceeds the larger number by 81. Find the numbers
Mice21 [21]

Let smaller no be x and bigger be y

  • x+y=39--(1)
  • 3x=y+81
  • y=3x-81
  • y=3(x-27)--(2)

Put it in eq(1)

  • x+3(x-27)=39
  • x+3x-81=39
  • 4x=81+39
  • 4x=120
  • x=30

Now

  • x+y=39
  • y=39-30
  • y=9

The numbers are 9 and 30

7 0
2 years ago
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