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Liono4ka [1.6K]
3 years ago
11

HELP ASAP PLEASE How many students were in the sample? a. 29 b. 5 c. 24 d. 20

Mathematics
2 answers:
german3 years ago
5 0
C. 24. Each number on the right is a second digit so just count those
Strike441 [17]3 years ago
4 0

Answer:

24

Step-by-step explanation:

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Invested 28, 000 in two accounts, one yielding 8% and the other at 9%. If i receive a total of 2,440 in intrest at the end of th
dalvyx [7]

Answer:

8,000 in the 8% account

20,000 in the 9% account.

Step-by-step explanation:

x + y = 28000

0.08 x + 0.09 y = 2440

0.08 x + 0.09 (28000 − x) = 2440

0.08 x + 2520 − 0.09 x = 2440

80 = 0.01 x

x = 8000

y = 20000

8 0
3 years ago
SOMEBODY PLEASE HELP ME!!!!!!! <br>Solve each system of equations<br> -3x + 3y =4 <br>-x + y =3​
g100num [7]
The 2 equations have no solution. If both are true, then

-3x + 3y = 4

-x + y = 4/3

Thus, 3 = 4/3, which is obviously wrong. Pls mark me as brainliest!
7 0
3 years ago
Can you please solve this!!
lyudmila [28]

Answer: A

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Evaluate the function below for X=3:
Zarrin [17]

Answer:

42

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Step-by-step explanation:

<u>Step 1: Define</u>

2x³ - x² - 4x + 9

x = 3

<u>Step 2: Evaluate</u>

  1. Substitute in <em>x</em>:                    2(3)³ - 3² - 4(3) + 9
  2. Exponents:                          2(27) - 9 - 12 + 9
  3. Multiply:                               54 - 9 - 12 + 9
  4. Subtract:                              45 - 12 + 9
  5. Subtract:                              33 + 9
  6. Add:                                     42
6 0
3 years ago
if a hiker walks 6.4 miles east, and then turns and walks 5.9 miles south, how far away is he from his starting point
VMariaS [17]
.6 miles? I would assume.
7 0
3 years ago
Read 2 more answers
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