8x - amount of boys
7x- amount of girls
8x + 7x = 195
15x= 195 ( divide by 15)
x= 13
8x = 8 x 13 = 104
7x = 7 x 13= 91
there are 104 boys, and 91 girls.
Answer:
B: 3
Step-by-step explanation:
For the line to be parrallel to the x-axis, it means the slope is zero.
Thus;
(y2 - y1)/(x2 - x1) = 0
(4k - 5 - (2k + 1))/(8 - 3) = 0
4k - 5 - 2k - 1 = 0
2k - 6 = 0
2k = 6
k = 6/2
k = 3
Answer:
<u>f(x) = x² - 4x + 2 or f(x) = (x - 2)²</u>
Step-b<u>y</u>-step explanation:
- The parabola touches the x-axis at only one point
- If we use y = a(x − h)² + k, we can see from the graph that h = 2 and k = 0
- This gives us y = a(x − 2)²
What is the value of "a"?
- We also see that the y-intercept is (0, 4)
- We can plug it into the equation
- 4 = a(0 - 2)²
- 4a = 4
- a = 1
<u>So, our quadratic equation will be</u> :
- y = 1(x - 2)²
- <u>y = x² - 4x + 2 or y = (x - 2)²</u>
Answer:
x = 91.5
Step-by-step explanation:
for 30.5 miles travelled gas used is 1 gallon ← unit rate
To calculate distance travelled multiply gas used by 30.5
For 3 gallons used
distance travelled = 3 × 30.5 = 91.5 miles
⇒ x = 91.5
Answer:
The metric prefixes value 1.048576E-14 E (exa) in words is "one point zero four eight five seven six one four E (exa)".
Step-by-step explanation:
-5 ^ -20 = 1.048576E - 14
negative five to the power of negative twenty equals one decimal point zero four eight five seven sixE subtract fourteen.