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Kaylis [27]
3 years ago
10

Please can someone help me answer these questions? Would be really grateful if it was done by the 12th of January. Thank you :)

xo

Mathematics
2 answers:
NikAS [45]3 years ago
7 0
1) 4g+5=37 => 4g=32 => g=8 
2)c/6=5 => x=6*5=> x=30
3)(f+4)/5=3 => f+4=15 => f=11
4)5(b+6)=30 => b+6=6 => b=0
5)5(a-5)=60 => a-5=12 => a=17
6)5(e+2)=45 => e+2=9 =>e=7
7)3(d-5)=12 => d-5=4=> d=9
8)4(m-4)=16 => m-4=4 => m=8
9)5(q+6)=30 => q+6=6 =>q=0
10) h/3+7=6 => h/3=1 => h=3
11)3c+5=3 => 3c=-2 => c= -2/3
12)x/3+7=6 => x/3= -1 => x=-3
13)6p-1=2 => 6p=3 => p=3/6=1/2
14)3(2d-7)=27 => 2d-7=9 => 2d=16 => d=8
15)2(b-3)=5 => b-3=2,5 => b=5,5
16)3(y-1)=1 => y-1=1/3 => y=4/3
17)5v+3=9 => 5v=6 => v= 6/5
18)(n-3)/6=3 => n-3=18 => n=21
19)(t+10)/4=1 => t+10=4 => t= -6
20)(3c+4)/3=5 => 3c+4=15 => 3c=11 => c=11/3
Hope that helps.
Good luck!! ^^
FrozenT [24]3 years ago
6 0
1. 4g= 37-5
 ⇒ 4g= 32
⇒ g= 32/4
⇒ g= 8

2. c= 5*6
⇒ c= 30

3. f+4= 3*5
⇒f+4= 15
⇒ f= 15-4
⇒ f= 11.

4. b+6= 30/5
⇒ b+6= 6
⇒ b= 6-6
⇒ b=0

5. a-5= 60/5
⇒ a-5= 12
⇒ a= 12+5
⇒ a= 17

6. e+2= 45/5
⇒ e+2= 9
⇒ e= 9-2
⇒ e= 7

7. d-5= 12/3
⇒ d-5= 4
⇒ d= 4+5
⇒ d= 9

8. m-4= 16/4
⇒ m-4= 4
⇒ m= 4+4
⇒ m= 8

9. q+6= 30/5
⇒ q+6= 6
⇒ q= 6-6
⇒ q= 0

10. h/3= 3+5
⇒ h/3= 8
⇒ h= 8*3
⇒ h= 24

11. 3c= 3-5
⇒ 3c= -2
⇒ c= -2/3

12. x/3= 6-7
⇒ x/3= -1
⇒ x= -1*3
⇒ x= -3

13. 6p= 2+1
⇒ 6p= 3
⇒ p= 3/6
⇒ p= 1/2

14. 2d-7= 27/3
⇒ 2d-7= 9
⇒ 2d= 9+7
⇒ 2d= 16
⇒ d= 16/2
⇒ d=8

15. b-3= 5/2
⇒ b-3= 2.5
⇒ b= 2.5+3
⇒ b= 5.5

16. y-1= 1/3
⇒ y= 1/3+1
⇒ y= 1 1/3

17. 5v= 9-3
⇒ 5v= 6
⇒ v= 6/5
⇒ v= 1.2

18. n-3 = 3*6
⇒ n-3= 18
⇒ n= 18+3
⇒ n= 21

19. t+10= 1*4
⇒ t+10= 4
⇒ t= 4-10
⇒ t= -6

20. 3c+4= 3*5
⇒ 3c+4= 15
⇒ 3c= 15-4
⇒ 3c= 11
⇒ c= 11/3
⇒ c= 3 2/3

Hope this helps~
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Three times a number plus five equal twenty
Bezzdna [24]
Let the number be x
3x + 5 = 20
3x = 20 - 5
x = 15/3
x=5
3 0
3 years ago
How do I solve -(x+7)-5=4(x+3)-6x
sasho [114]

Answer:

x = 24

Step-by-step explanation:

I checked and made sure the answer was correct.

Hope this helps!

Please Mark Brainliest!

4 0
3 years ago
Select all of the following that are quadratic equations. 7x2 + 14x = 0 x3 - 3x2 + 1 = 0 5x - 7 = 0 x2 + 3x -5 = 0 x - 5 = 9x +
Tpy6a [65]

Answer:

7x2 + 14x = 0

x2 + 3x -5 = 0

x2 - x = 3x + 7  

Step-by-step explanation:

A quadratic equation has the highest power of x to the second power.  It must have x to the second power

7x2 + 14x = 0  quadratic

x3 - 3x2 + 1 = 0   not quadratic  but cubic

5x - 7 = 0  not quadratic  but linear

x2 + 3x -5 = 0   quadratic

x - 5 = 9x + 7  not quadratic but linear

x2 - x = 3x + 7  quadratic

4 0
2 years ago
Use rounding to estimate the product 12*9. Then, use compensation to find the actual answer. If Alison was rounding to find how
anzhelika [568]
I would do 12 x 10 = 120
to compensate do 120 - 12 =108 same as 12*9 = 108

The estimate is decent, because we are only $12.00 from the real answer.
5 0
3 years ago
NEED HELP WILL GIVE 5 STAR, THANKS, AND BRAINLIEST FOR BEST ANSWER PLEASE HELP ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
yulyashka [42]

Answer:

h = -t+20

After 8 hours the candle will be 12 inches

Step-by-step explanation:

We have 2 points (time, inches)

 (3,17)  and (5,15)

We can find the slope

m = (y2-y1)/(x2-x1)

   = (15-17)/(5-3)

   = -2/2

   = -1

We can use point slope form

y-y1 = m(x-x1)

Replace y with h and x with t

h-17 = -1 (t-3)

Distribute

h-17 = -t+3

Add 17 to each side

h-17+17 = -t+3+17

h = -t+20

After 8 hours

h = -t+20

h = -8+20

h= 12

4 0
3 years ago
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