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3 years ago

What is the value of x for 3x + 10=2x – 1 ?

Mathematics

2 answers:

kap26 [50]3 years ago

5 0

Answer:

-11

Step-by-step explanation:

3x+10=2x-1

3x-2x+10=-1

x+10=-1

x=-1-10

x=-11

ycow [4]3 years ago

5 0

Answer:

x = -11

Step-by-step explanation:

Rearrange unknown terms to the left side of the equation: 3 x - 2 x = -1 - 10

Combine like terms: x = -1 - 10

Calculate the sum: x = -11

Final answer: x = -11

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Help please? 20 points

drek231 [11]

Answer:

125.6637061 or 125.7

Step-by-step explanation:

V=πr²h

Big: π(3)²(5) = 141.3716694

Hole: π(1)²(5) = 15.70796327

141.3716694

- <u>15.70796327</u>

125.6637061

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3 years ago

Jill is making lemonade. The original concentration was 25 mL of concentrate to 2 L of water. People found that too strong so sh

Harlamova29_29 [7]

100%= 25mls

20/25 x 100 = 80%

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4 0

3 years ago

Read 2 more answers

Write the equation of a polynomial of degree 3, with zeros 1, 2 and -1 where f(0)=2

ser-zykov [4K]

Answer:

f(x) = x^3 - 2x^2 - x + 2

Step-by-step explanation:

since the zeroes are 1,-1, and 2. we can write the function like

f(x) = (x-1)(x+1)(x-2)

f(x) = (x^2-1)(x-2)

f(x) = x^3 -2x^2 -x +2

and it is true that f(0)=2

4 0

3 years ago

A triangular pyramid has a right triangle for its base. The perpendicular sides of the triangle are 10 inches and 18 inches long

igor_vitrenko [27]

The formula for a triangular pyramid is 1/3AH. A is the area of the base. H is the height of the pyramid. So to find the area of a right triangle, you would use the formula (a x b)/2. So (10 x18)/2 is 90 inches^2. Now you can fill in the first formula. 1/3(90 x 14), which equals 420 inches^3. I hope you find this helpful (if correct.)

6 0

3 years ago

Hat is the solution to the equation 3/3(4c + 16)=2c+9 ?<br><br> c =

marusya05 [52]

If it is $\frac{3}{3(4c+16)}$ =2c+9, go to AAAAAA
if it is ( $\frac{3}{3}$ )(4c+16)=2c+9, go to BBBBB

AAAAAAAAA
$\frac{3}{3(4c+16)}$ =2c+9
$\frac{1}{4c+16}$ =2c+9
times 4c+16 to both sides
1=(2c+9)(4c+16)
distribute
1=8c^2+68c+144
minus 1 both sides
0=8c^2+68c+143
use quadratic formula
c= $\frac{-17- \sqrt{3} }{4}$ or $\frac{-17+ \sqrt{3} }{4}$

BBBBBBBBBBBB
(3/3)(4c+16)=2c+9
1(4c+16)=2c+9
4c+16=2c+9
minus 2c both sides
2c+16=9
minus 16 both sides
2c=-7
divide both sides by 2
c=-7/2
c=-3.5

if it is $\frac{3}{3(4c+16)}$ =2c+9,
c= $\frac{-17- \sqrt{3} }{4}$ or $\frac{-17+ \sqrt{3} }{4}$

if it is ( $\frac{3}{3}$ )(4c+16)=2c+9, c=-3.5

7 0

3 years ago

Read 2 more answers