CLICK ON THE POIN AND SCHROOL DOWN
Answer:
3
Step-by-step explanation:
Let x represent the number of interest. Then x+6 is "another number". You want its square root to be the original number:
√(x+6) = x
Squaring both sides, we get ...
x +6 = x^2
In standard form, this is ...
x^2 -x -6 = 0
(x -3)(x +2) = 0 . . . . factored
By the zero product rule, this will have solutions ...
x -3 = 0 ⇒ x = 3
x +2 = 0 ⇒ x = -2 . . . . . an extraneous solution, because √(-2+6) ≠ -2
The number is 3.
Given:
Let baked beans be x
Let brown sugar be y
Let biscuits be z
5x + 4y + 2z = 150 - 26
5x + 4y + 2z = 124
a can of baked beens costs half as much as a packet of biscuits:
x = 1/2 * z = z/2
a packet of sugar is 3.00 cheaper than a packet of biscuits
y = z - 3
We substitute x and y with its values:
5x + 4y + 2z = 124 ; x = z/2 ; y = z-3
5(z/2) + 4(z-3) + 2z = 124
5z/2 + 4z - 12 + 2z = 124
5z/2 + 6z = 124 + 12
2(5z/2 + 6z) = 2(136)
5z + 12z = 272
17z = 272
z = 272/17
z = 16 price of a packet of biscuits.
can of baked beans : x = z/2 ; x = 16/2 = 8
packet of sugar : y = z - 3 ; y = 16 - 3 = 13
5x + 4y + 2z = 124
5(8) + 4(13) + 2(16) = 124
40 + 52 + 32 = 124
124 = 124
The probability of a student taking a math class or a physics class is when the probability of a student taking a math class is , the probability of taking a physics class is , and the probability of taking a math class and a physics class is
How can we find the probability of taking math class or a physics class ?
Given in the question probability of the student taking class
So we use the probability union intersection formula
Substitute the values
Learn more about probability here :
brainly.com/question/28045837
#SPJ4
Ok, let's try to find the value of the dividend based on the given information
=> 30 is the divisor
=> The dividend is a 3 digit number, which is the least
=> Remainder of 8
To get the answer, let's find the least number that can be divided with 30
=> 30 * 1 = 30
=> 30 * 2 = 60
=> 30 * 3 = 90
=> 30 * 4 = 120, the least 3 digit number that is divisible with 30
Now, let's add 8 as a reminder
=> 120 + 8 = 128
=> 128//30 = 4 reminder 8
Hope this helps you =)