Answer:
7 cookies
Step-by-step explanation:
We have 3 brothers
First , Second, Third
Let the total number cookies be represented by A
1 cookie = 1
Working backwards, we start from the third brother
If we work backwards
It means he gave everything away
We start from the youngest
He was given 1/2 of what was left and 1/2 a cookie
This means,
1/2 + 1/2 = 1
The second brother
He got half of what is left and 1/2 a cookies
Half of what is left from brother
= What the youngest brother got + 1/2 + 1/2 a cookie
= 1 + 1/2 + 1/2
= 1.5 + 1/2
= 2 cookies
For the first brother
He got 1/2 of the cookies + 1/2 cookie
= 1.5 × 2 + 1/2 + 1/2 cookies
= 3 1/2 + 1/2
= 4 cookies
The first brother got 4 cookies
The second brother got 2 cookies
The third broth got 1 cookies
Answer: D.) 3
Step-by-step explanation:
Given: Mean diameter: 
Standard deviation: 
The required number of standard deviations is given by :-
Hence, a beach ball with a diameter of 31.9 cm is 3 standard deviations differ from the mean.
Answer:
73155
Step-by-step explanation:
Step 1: Add the first 2 digits in the number
Step 2: Subtract digit 3 from Digit 2
Step 3: Multiply Digit 3 and 4
Step 4: Divide Digit 4 by 3
The next number is:
1 + 6 = 7
6 – 3 = 3
3 * 5 = 15
5 / 1 = 5
Thus; the number is 73155
Answer: C
<u>Step-by-step explanation:</u>
1. DOF and GOH are vertical angles 1. Given
2. m∠DOF = m∠GOH 2. Vertical Angles Theorem
3. ∠DOF = 58° 3. Given
4. 58° = m∠GOH 4. Substitution
Answer:
9x-27
Step-by-step explanation:
x(9)-3(9)--->distributive property
