7x+3x=280
10x=280
x=28
John 7*28= 196$
Peter 3*28=84$
There is no formula for finding prime numbers. The rule is just if a number is prime then it is divisible by 1 and itself
Answer:
Step-by-step explanation:
<u>Solving</u>
- 3tanx = -4
- tanx = -4/3
- tan values are negative in the 2nd and 4th quadrant
- The base value is x = 53°
In <u>Quadrant II</u>,
- 90° + 53°
- ⇒ <u>x = 143°</u>
In <u>Quadrant IV</u>,
- 270° + 53°
- ⇒ <u>x = 323°</u>
18x6 = 108
110-108 =2
By weeks 6 she will only have $2 left
So being realistic, at week 7 she will have spent all her money.
The answer is 0 because any number - itself is equal to 0