How do you solve 5x+7=3x-5

Answers

Answer 1

Answer: 5x + 7 = 3x - 5

First, subtract 3x from both sides.
$5x = 7 - 3x = -5$
Second, keep the 7 and subtract the 5x - 3x to get 2x.
$2x + 7 = -5$
Third, subtract the 7 from both sides.
$2x = -5 - 7$
Fourth, simplify -5 - 7.
$2x = -12$
Fifth, take the 2 and divide it on both sides, leaving just x in its place.
$x = -(12)/(2)$
Sixth, since 6 goes into 2 to get 12, simplify the fraction to 6.
$x = -6$

Answer: x = -6

Answer 2

Answer: Subtract 3x from both sides then isolate the variable.
Sooooo...
5x+7=3x-5
2x+7=-5
2x=-12
x=-6

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Find all the powers of 4 in the range of 1000

Answers

4 to the 1st is 4
4 to the 2nd is 16
4 to the 3rd is 64
4 to the 4th is 256

What is the value of P for the following triangular prism?

Answers

pretty sure its 36 (not sure) i keep getting 36.6 cm

Answer:

4cm + 2.8cm +4cm = 10.8 cm

Step-by-step explanation:

Formula Perimeter is A+B+C

First, you need to change the 28 mm to cm (move decimal once space to the left making 28mm to 2.8 cm)

Next, add all your sides that are now in the same format of cm

4 +2.8 +4=10.8 cm

What is the LCM of 2,6,18 and 21

Answers

Answer:

126

Step-by-step explanation:

2 x 3 x 3 x7 = 126

Hope this helps!

If you need further instructions on anything Let me know!

Please help with these math questions part one

Answers

V of cone=(1/3)(pi)(h)(r^2)
V of cylinder=(pi)(h)(r^2)

1.
r=6
h=10
v=(1/3)(pi)(10)(6^2)
v=1/3pi10(36)
v=1/3pi360
v=120pi
answer is B

2.
r=d/2
d=10
10/2=5=r
V=(3.14)(5)(5^2)
V=3.14(125)
V=392.5
answer is B

3. 9.2, 3.7
V=(pi)(9.2)(3.7^2)
V=(pi)(9.2)(13.69)
V=(pi)(125.948)
input 125.948

4. v=(1/3)(pi)(12)(3^2)
V=(1/3)(pi)(12)(9)
V=(pi)(12)(3)
V=pi(36
v=36pi
v=36(3.14)
V=113.04

input 113.04

ANSERS
1.B
2.B
3. 129.948
4. 113.04

The size of a television screen is given as the length of diagonal. For example, a 29 inch screen is 29 inches from the lower left corner to the upper right corner. Shaun bought a new 40 inch television screen. One side of the screen is 24 inches long. How long is the other side? 28 inches
30 inches
34 inches
32 inches