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Kay [80]
3 years ago
14

Help please fast!!!!!!!1

Mathematics
1 answer:
Marianna [84]3 years ago
4 0

Answer:b

Step-by-step explanation: i thinks its b

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Solve each equation. Show your work<br><br> 13a=-5<br> 12−b=12.5<br> -0.1=-10c
amid [387]
1) 13a=-5
Make a the subject of the formula by dividing both sides by 13(the coefficient of a)
13a/13=-5/13
Therefore a= -0.385

The second one). 12-b= 12.5
You take the 12 to the other side making b subject of the formula (-b in this case)
-b= 12.5-12
-b= 0.5
(You cannot leave b with a negative sign so you will divide both sides by -1 to cancel out the negative sign)

-b/-1= 0.5/-1
Therefore b=-0.5

The third one). -0.1= -10c
You will divide both sides by the coefficient of c(number next to c) which is -10
-0.1/-10= -10c/-10

Hence, c= 0.01
5 0
3 years ago
In a classroom of students 3 out of 5 students are boys. If the total amount of students is 35 how many students are boys. Pleas
Bumek [7]

Answer:

there is 21 boys

Step-by-step explanation:

hope that helps

6 0
2 years ago
In the diagram below, angle 7 equals 61°.<br><br><br><br> What is the measure of angle 8?
V125BC [204]

Answer:

119

Step-by-step explanation:

So angle 6 equals angle 7 vertically opp angles. So 61 times 2 is 122. Total angles around a point is 360. So 360 - 122 is 238 which divided by 2 will give 119 cause angle 8 equals angle 5.

7 0
3 years ago
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Blti número de dias que ha trabajado pedro es 4 veces el número de días que ha trabajado Enrique. Si pedro hubiera trabajado 15
-BARSIC- [3]

Answer:

same I dont know your language

Step-by-step explanation:

7 0
3 years ago
If a fraction has<br> ____ in the denominator, it is undefined.
inn [45]

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Zero

Step-by-step explanation:

Zero

8 0
3 years ago
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