Answer:
810
Step-by-step explanation:
21 = 42
Decode:
Number in the tens place = 2 x 2 = 4
Number in the ones place = 1 x 2 = 2
Answer: 42
39 = 618
Decode:
Number in the tens place = 3 x 2 = 6
Number in the ones place = 9 x 2 = 18
Answer: 618
17 = 214
Decode:
Number in the tens place = 1 x 2 = 2
Number in the ones place = 7 x 2 = 14
Answer: 214
Find 45
Number in the tens place = 4 x 2 = 8
Number in the ones place = 5 x 2 = 10
Answer: 810
Answer:
The number of quarters Josie has in her collection of 92 coins 28 quarters
Step-by-step explanation:
The given information are
The total number of coins Josie has = 92
Let the number of quarters she has = x
Therefore, 92 = 8 + 3×x
8 + 3×x = 92
3×x = 92 - 8 = 84
3×x = 84
x = 84/3 = 28
x = 28
The number of quarters Josie has in her collection of 92 coins = 28 quarters.
14. B (4, -2)
15. I am not exactly sure about this one but I would say either A or B.
Answer:
Write the following numbers in order from smallest value to largest value: 1.75, 1. Justify your answer. 4. If 2x2 – x + 6 is subtracted from x2 + 3x – 2, ...
Step-by-step explanation:
1. Which number is irrational?
(A) (B) (C) 0.3333 (D)
2. In which group are the numbers arranged in order from smallest value to largest value?
(A) π, 3.14, (B) 3.14, π
(C) , 3.14, π, (D) 3.14, , π,
3. Write the following numbers in order from smallest value to largest value:
1.75, 1
Justify your answer.
4. If 2x2 – x + 6 is subtracted from x2 + 3x – 2, the result is
(A) x2 + 2x – 8 (B) x2 – 4x + 8 (C) –x
2 + 2x – 8 (D) –x
2 + 4x – 8
D,
You basically see if statements are correct or not. Remember this is sample, sample is portion of population so if everything is dome correctly, the results of sample will also display the results of population +- error (standard deviation). So you can just use the sample results to answer questions about the population.
A is correct because social studies has 4 students and reading has 8. Math has twice.
B is correct because reading has 2 and math has 8. Reading is one fourth of math 8*1/4 = 8/4=2.
D is NOT correct because math is 8, social studies is 4. Math is not half of social studies. Social studies is half of math.
