Find the value of x in the equation 9 – 4x = 57.
A. –12
B. 16.5
C. –16.5
D. 12

Question

Asked 10/2/2018 9:39:47 AM

Updated 10/2/2018 10:18:54 AM

1 Answer/Comment

s

Expert answered|Score .9848|alfred123|Points 128028|

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Question

Asked 10/2/2018 9:39:47 AM

Updated 10/2/2018 10:18:54 AM

1 Answer/Comment

Rating

8

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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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 189 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

Number of shares = 50

Total loss = 50 * 7/4 = 350 /4 =175/2 =$87.50

Added 189 days ago|7/20/2020 1:02:51 PM

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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 88 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

Solution:

A = L * W

600 = L *20

L = 600 ÷ 20

L = 30

Added 88 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 125 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.

Solution:

sqrt (10^2 - 8^2)

sqrt (100 - 64)

sqrt (36)

6 feet.

Added 125 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 63 days 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 63 days ago|11/23/2020 7:08:10 AM

This answer has been confirmed as correct and helpful.

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