Answer:
Puppy' present weight = 2250 grams
Puppy last weight = 600 grams
Difference = 2250-600 = 1650
%age increase = (1650/600) x 100
= 275%
Answer:
One
Step-by-step explanation:
It is given that,
y = 3x-5 ....(1)
y = -x+4 .....(2)
We can solve the above equations using substitution method. Put the value of y from equation (1) to equation (2) such that,
![3x-5 = -x+4\\\\3x+x = 5+4\\\\4x = 9\\\\x=\dfrac{9}{4}](https://tex.z-dn.net/?f=3x-5%20%3D%20-x%2B4%5C%5C%5C%5C3x%2Bx%20%3D%205%2B4%5C%5C%5C%5C4x%20%3D%209%5C%5C%5C%5Cx%3D%5Cdfrac%7B9%7D%7B4%7D)
Put the value of x in equation (1) we get :
![y = 3x-5\\\\y = 3\times \dfrac{9}{4}-5\\\\y=\dfrac{7}{4}](https://tex.z-dn.net/?f=y%20%3D%203x-5%5C%5C%5C%5Cy%20%3D%203%5Ctimes%20%5Cdfrac%7B9%7D%7B4%7D-5%5C%5C%5C%5Cy%3D%5Cdfrac%7B7%7D%7B4%7D)
It means that the value of x is
and the value of y is
. Hence, the given equations has only one solution.
Answer:
3 ft.
Step-by-step explanation:
When you imagine the sentence, it is a right angled triangle. In this case, it's a Pythagoras Theorem. The formula for it is:
a²(opposite) + b²(adjacent) = c²(hypotenuse)
The building is the opposite, the distance between the foot of the ladder and the building is the adjacent, while the ladder is the hypotenuse.
We have the measurements except for the adjacent. So it will be:
c² - a² = b²
5² - 4² = b²
25 - 16 = b²
9 = b²
√9 = b
b = 3 ft
The answer is 3 ft.
Answer:
Step-by-step explanation: