Isolate the y
add 7 to both sides
y - 7 = 21
y - 7 (+7) = 21 (+7)
y = 21 + 7
y = 28
28 is your answer
hope this helps
Answer:
It would be 90,000
Step-by-step explanation:
First put it in standard form:
<span>x^2 −14x -15 =0
a =1 b =-14 c=-15
Then use the quadratic formula:
x = [-b +-sq root (b^2 - 4ac)] / 2a
x = [--14 +- sq root (14^2 -4*1*-15] / 2*1
x = [14 +-sq root (196 +60)] / 2
</span><span>x = [14 +- 16] / 2
x1 = 15
x2 = -1
</span>
The first number is 170
The second number is 171
Step-by-step explanation:
Let the first number be x^3 and the second number be x^3+1
The sum of the two is 341
X^3+x^3+1=341
2x^3+1=341
Substrate 1 from both sides
2x^3=341-1
Answer:
3 cm
Step-by-step explanation:
