Answer:
x=2
Step-by-step explanation:
3(5x+2)=8x+20
Distribute the 3
15x +6 = 8x+20
Subtract 8x from each side
15x-8x +6 = 8x-8x+20
7x+6 = 20
Subtract 6 from each side
7x+6-6=20-6
7x=14
Divide each side by 7
7x/7 = 14/7
x=2
By the remainder theorem 8x^2 + 4x - 3 when divided by 2x - 1 is
8(1/2)^2 + 4(1/2) - 3 = 2 + 2 - 3 = 1 answer
Answer:
110
50+50=100
5+5=10
100+10=110
(thats how i do mental math)
Answer:
after 7th day the temperature changes - 8.4 degrees.
Step-by-step explanation:
Each day, the temperature changes - 1.2 degrees. Then
- after 1st day the temperature changes - 1.2 degrees;
- after 2nd day the temperature changes - 2.4 degrees;
- after 3rd day the temperature changes - 3.6 degrees;
- after 4th day the temperature changes - 4.8 degrees;
- after 5th day the temperature changes - 6 degrees;
- after 6th day the temperature changes - 7.2 degrees;
- after 7th day the temperature changes - 8.4 degrees.
Not quite sure what the ratio table is
But you can divide both sides by 3 to get 2 out of 10 and then multiply it by 10 to get 20/100 or 20%
