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3 years ago

What is 3y-13=35 in math

Mathematics

2 answers:

jarptica [38.1K]3 years ago

7 0

16. You add 13 to 35 which makes 3y=48. Then to get y by itself you have to divide both sides by 3. 48/3=16.

vazorg [7]3 years ago

4 0

3y-13=35 ur answer is y=16

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On a coordinate plane, the endpoints of line segment JK are J(−10,12) and K(8,−12). Point L lies on line segment JK and divides

lakkis [162]

Answer:

The coordinates of point L are (4.4 , -7.2) ⇒ answer A

Step-by-step explanation:

Assume that point L is (x , y)

Point L divides the line segment JK into two line segments such that

the ratio of JK to KL is 5 : 1

The coordinates of point J are (-10 , 12)

The coordinates of point K are (8 , -12)

∵ $x=\frac{x_{1}m_{2}+x_{2}m_{1}}{m_{1}+m_{2}}$

∵ $y=\frac{y_{1}m_{2}+y_{2}m_{1}}{m_{1}+m_{2}}$

Let $(x_{1},y_{1})$ = (-10 , 12) and $(x_{2},y_{2})$ = (8 , -12)

and $m_{1}:m_{2}$ = JL : KL

∵ JK : KL = 5 : 1

∵ JK = JL + KL

∴ 5 = JL + 1

Subtract 1 from both sides

∴ JL = 4

∴ JL : LK = 4 : 1

∴ $m_{1}:m_{2}$ = 4 : 1

∵ $x=\frac{(-10)(1)+(8)(4)}{4+1}$

∴ $x=\frac{-10+32}{5}$

∴ $x=\frac{22}{5}=4.4$

∴ The x-coordinate of point L is 4.4

∵ $y=\frac{(12)(1)+(-12)(4)}{4+1}$

∴ $y=\frac{12+(-48)}{5}$

∴ $y=\frac{-36}{5}=-7.2$

∴ The y-coordinate of point L is -7.2

* The coordinates of point L are (4.4 , -7.2)

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Answer: 63.97

Step-by-step explanation:

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3 years ago

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Mrs. Nevin is making a costume for a school play. She needs a piece of fabric that is greater than 1/2 of a yard but less than 5

Ierofanga [76]

Answer: 5/16

Step-by-step explanation:

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4 years ago

Help me!!!!!!!!!!!!!!!!!!!!!!

DedPeter [7]

Hello from MrBillDoesMath!

Answer:

Choice D.

Discussion:

Substitute x = 9 in the choices

A. when x = 9, x^2 - 6x + 9 = 36

B. when x = 9, x^2 + 16x + 63 = 288

C. when x = 9, x^2 + 14x + 45 = 252

D. when x = 9, x^2 -12x + 27 = 0

Thank you,

MrB

3 0

4 years ago