Answer:
the answer is its 11 logk
Answer:
Therefore either a:b = 5:4 or a:b=-5:4
Step-by-step explanation:
ax²-5bx+4a=0
Since the quadratic equation has two real root.
Then b²-4ac>0
Here a= a , b= -5b and c=4a
∴(-5b)²-4.a.4a=0
⇔25b²=16a²
⇔5b=±4a
Therefore either a:b = 5:4 or a:b=-5:4
Answer:
9.5 gallons of gas
Step-by-step explanation:
Given that:
Each gallon gives 14 miles
Mrs giang wants to travel 133 miles
So
gallons she would need = 133 / 14 miles
gallons she would need = 9.5 gallons
So Mrs.giang will need 9.5 gallons of gas to visit her niece.
i hope it will help you!
Answer:
m=-2
Step-by-step explanation:
7(m+5)=21
m+5=21/7
m+5=3
m=3-5
m=-2
33 photos in a 4x to 7x ratio
4x + 7x = 33
11x = 33
x = 3
33 photos can be put in a 4(3) to 7(3) ratio
which is a 12 to 21 ratio
so 12 photos on one side, and 21 on the other side to get the ratio of 4 to 7
Note:
<span>a(b) = ab = a x b = a times b</span>