Answer:
6,5×10¹¹/1,3×10⁸= 65/13 ×10³= 5×10³=5000
Answer:
Is part, share, or number considered in comparative relation to a whole: Step-by-step explanation: Please Mark Brainliest
Answer:
The equation is y=0.05x
Step-by-step explanation:
It only stays in the first quadrant because it does not move down or left just up and right. It also doesnt go below zero because of how price works.
Answer:
650
Step-by-step explanation:
if it 20% off that means $520 is 80% of actual price
multiply 520 and 100 then divide the result with 80
Answer:
1. f(x) = 3x + 7
2.
3. f(x) = x + 5
4. f(x) = -2x - 5
5.
Step-by-step explanation:
Rearrange all the equations to make y the subject,
then substitute f(x) for y:
1. y - 3x = 7
Add 3x to both sides:
⇒ y = 3x + 7
⇒ f(x) = 3x + 7
2. 2x + 4y = 8
Subtract 2x from both sides:
⇒ 4y = -2x + 8
Divide both sides by 4:
⇒
⇒
3. -x + y = 5
Add x to both sides:
⇒ y = x + 5
⇒ f(x) = x + 5
4. y + 5 = -2x
Subtract 5 from both sides:
⇒ y = -2x - 5
⇒ f(x) = -2x - 5
5. 3x + 2y - 4 = 0
Subtract 3x from both sides:
⇒ 2y - 4 = -3x
Add 4 to both sides:
⇒ 2y = -3x + 4
Divide both sides by 2;
⇒
⇒