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Find the value of x in the equation 9 – 4x = 57. A. –12 B. 16.5 C. –16.5 D. 12
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Asked 10/2/2018 9:39:47 AM
Updated 10/2/2018 10:18:54 AM
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User: Find the value of x in the equation 9 – 4x = 57. A. –12 B. 16.5 C. –16.5 D. 12

Weegy: 9 ? 4x = 57; -4x = 57 - 9; -4x = 48; x = -48/4; x = -12
Expert answered|Score .9848|alfred123|Points 128028|

User: You can calculate the interest on a savings account by using this formula: Interest = Principal × Rate × Time If Mary deposits \$275 in principal at an interest rate of 3.2 percent, how much interest will she earn in one year? A. \$880 B. \$18.80 C. \$88 D. \$8.80

Weegy: If Mary deposits \$275 in principal at an interest rate of 3.2 percent, the amount of interest she will earn in one year is \$8.80.
Score 1

User: Solve the system of equations 3r – 4s = 0 and 2r + 5s = 23. A. r = –1, s = –3 B. r = –12, s = 9 C. r = 4, s = 3 D. r = 12, s = 0

Question
Asked 10/2/2018 9:39:47 AM
Updated 10/2/2018 10:18:54 AM
1 Answer/Comment
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3r – 4s = 0 and 2r + 5s = 23 ; Multiply equation 1 by 2 and equation 2 by 3. (3r – 4s = 0 ) * 2 ; 6r - 8s = 0 (2r + 5s = 23) * 3 ; 6r + 15s = 69 ; subtract both equations 6r - 8s - ( 6r + 15s ) = 0 - 69 ; 6r - 8s - 6r -15s = -69 ; -23s = -69 ; s = -69/-23 = 3 ;s = 3 ; 3r – 4s = 0 ; 3r - 4(3) = 0 ; 3r = 12 ; r = 12/3 = 4 ' r = 4 ; s =3.
Added 10/2/2018 10:18:54 AM
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Questions asked by the same visitor
Calculate the loss on selling 50 shares of stock originally bought at 133/4 and sold at 12. A. \$687.50 B. \$87.50 C. \$80.50 D. \$600.00
Question
Not Answered
Updated 126 days ago|7/20/2020 1:02:51 PM
1 Answer/Comment
Loss per share = 13 3/4 -12 = 55/4 - 12 = (55-48)/4 =7/4
Number of shares = 50
Total loss = 50 * 7/4 = 350 /4 =175/2 =\$87.50
Added 126 days ago|7/20/2020 1:02:51 PM
This answer has been confirmed as correct and helpful.
The floor of a rectangular deck has an area of 600 square feet. The floor is 20 feet wide. How long is the floor? A. 15 ft. B. 20 ft. C. 30 ft. D. 45 ft.
Question
Updated 25 days ago|10/29/2020 5:11:05 AM
1 Answer/Comment
The floor of a rectangular deck has an area of 600 q. ft. The floor is 20 ft. wide. The length of the floor is 30 ft.
Solution:
A = L * W
600 = L *20
L = 600 ÷ 20
L = 30
Added 25 days ago|10/29/2020 5:11:05 AM
This answer has been confirmed as correct and helpful.
What is the cube of 8? A. 2 B. 64 C. 24 D. 512
Weegy: The cube of 8 is 512. User: What are the prime factors of 700? A. 2 × 2 × 25 × 7 B. 350 × 2 C. 2 × 2 × 2 × 5 × 5 × 7 D. 2 × 2 × 5 × 5 × 7 Weegy: 700 = 2 x 2 x 5 x 5 x 7 User: What is 39 squared? A. 1,482 B. 78 C. 39 D. 1,521 Weegy: 39 squared is 1,521. User: Simplify the following expression: 35 + (–13) + (+8) – (–6). A. 44 B. 50 C. 24 D. 36 Weegy: 35 + ( 13) + (+8) ? ( 6) = 35 - 13 + 8 + 6 = 22 +8 +6 = 30 + 6 = 36 User: Which of the following is the same as 2.3 × 103? A. 2,300 B. 230 C. .23 D. .023 Weegy: 2.3 * 10^3 is the same as 2,300. User: Solve the equation: 12y = 132. A. y = 1/11 B. y = 11 C. y = 11/12 D. y = 144 Weegy: 12y = 132; y = 11; User: Using the Pythagorean theorem, find the length of a leg of a right triangle if the other leg is 8 feet long and the hypotenuse is 10 feet long. A. 12.81 ft. B. 36 ft. C. 6 ft. D. 41 ft. (More)
Question
Updated 62 days ago|9/21/2020 10:23:52 PM
1 Answer/Comment
Using the Pythagorean theorem, the length of a leg of a right triangle if the other leg is 8 feet long and the hypotenuse is 10 feet long is 6 feet.

Solution:
sqrt (10^2 - 8^2)
sqrt (100 - 64)
sqrt (36)
6 feet.
Added 62 days ago|9/21/2020 10:23:52 PM
This answer has been confirmed as correct and helpful.
Write 3 × 3 × 3 × 3 × 3 × 3 using exponents. A. 6^3 B. 3^6 C. 12^3 D. 9^4
Weegy: 3 × 3 × 3 × 3 × 3 × 3 written using exponents is 3^6. User: Solve this inequality: 3b – 7 Weegy: 3b - 7 < 32 ; 3b < 32 + 7 ; 3b < 39 ; b < 39/3 ; b < 13 (More)
Question
Updated 10/1/2018 5:55:49 PM
0 Answers/Comments
The spoke of a wheel reaches from the center of the wheel to its rim. If the circumference of the rim of the wheel is 42 inches, how long is each spoke? Round your answer to the nearest hundredth. A. 6.69 inches B. 13.38 inches C. 6.25 inches D. 7 inches
Question
Updated 10 hours 23 minutes ago|11/23/2020 7:08:10 AM
1 Answer/Comment
The spokes are representative of radius. The length of each spoke is: 7inches.

Added 10 hours 23 minutes ago|11/23/2020 7:08:10 AM
This answer has been confirmed as correct and helpful.
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