<span>multiply </span>40 by 7 wich equals 280 coins
Answer:
x=2 x=-3
Step-by-step explanation:
4x2+3x=24-x
Subtract 24 from each side
4x^2 +3x -24 = 24-24 -x
4x^2 +3x -24 = -x
Add x to each side
4x^2 +3x+x -24 = -x+x
4x^2 +4x -24 = 0
Factor out a 4
4(x^2 +x -6) = 0
Divide by 4
x^2 +x -6 =0
Factor
What 2 numbers multiply to -6 and add to 1
-2*3 = -6
-2+3 =1
(x-2) (x+3) =0
Using the zero product property
x-2 =0 x+3 =0
x-2+2=0+2 x+3-3=0-3
x=2 x=-3
Answer:
8.84 x 10^3
Step-by-step explanation:
first, you need to turn the digits in 8840 so it is lower than 10 and at least 1
so 8840 ÷ 1000 gives us 8.840, or 8.84
Then, we need to add the multiplication that makes the original number
8.84 x 1000 = 8840
We simplify this by counting the factors zeros
1 0 0 0 = 3 zeros
Finally, but the amount of zeros in the exponent
8.84 x 10^3
Answer:
1/2
Step-by-step explanation:
(3/16)/(3/8)
(3/16)*8/3
1/2
Answer:
11/30, 2/5, 7/15
Step-by-step explanation:
