Answer:
18=6b, b=3
Because Mary has 6 times as much as Carlos does, we put the x with 6. 18 is the number that 6x equals. 6*3=18
Answer:
m4=m1+m2
Step-by-step explanation:
m1+m2+m3=180
m3+m4=180
m3=180-m4
m1+m2+(180-m4)=180
m1+m2=m4
Hi there! :)
Answer:
x = -7.
Step-by-step explanation:
Starting with:
3(2x + 2) = 3x - 15
Begin by distributing '3' with the terms inside of the parenthesis:
3(2x) + 3(2) = 3x - 15
Simplify:
6x + 6 = 3x - 15
Isolate the variable by subtracting '3x' from both sides:
6x - 3x + 6 = 3x - 3x - 15
3x + 6 = -15
Subtract 6 from both sides:
3x + 6 - 6 = -15 - 6
3x = -21
Divide both sides by 3:
3x/3 = -21/3
x = -7.
18 is 45% of a number
18 is 45% of x
18 = 45% of x
18 = 0.45 * x
Now, to isolate x, you divide both sides of the equation by 0.45.
18 / 0.45 = 0.45*x /0.45
x = 40
So, 18 is 45% of 40. Hope this helps! :)
1.2rs=200 40:200 1:5
2:4m=400cm
3.450g=450000mg 800g=800000mg