3 years ago

Plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz

Mathematics

1 answer:

natita [175]3 years ago

8 0

Answer:

Step-by-step explanation:

-3x - 5 = 16

add 5 to both sides of the equation

-3x = 21

divide both sides by -3

x = -7

---------------------

-4(y - 2) = 12

distribute the -4 to everything in the parentheses

-4y + 8 = 12

subtract 8 from both sides of the equation

-4y = 4

divide both sides of the equation by -4

y = -1

You might be interested in

Which number is not irrational?<br> A. 20<br> B. 127<br> c. 125<br> D. V50

Tju [1.3M]

Answer:

A. A rational number gives you a remender when you divide it through by let say an even number 2.so irrational gives you no remender, hence A as an answer.

7 0

3 years ago

Please help I appreciate your help

steposvetlana [31]

It is twice as the distance hope this helps!!

3 0

3 years ago

Read 2 more answers

A diver begins at 150 feet below sea level, descends at a steady rate of 5 feet per minute for 3.5 minutes, and then ascends 122

marusya05 [52]

Start at -150, then add 3(-5), then add 122.2. -150 + 3(-5) + 122.2 = -45.3

3 0

3 years ago

Read 2 more answers

Grace uses 9.8 pints of blue paint and white paint to paint her bedroom walls. 4/5

igor_vitrenko [27]

4/5 * 9.8 = 7.84 pints of blue paint
9.8 - 7.84 = 1.96 pints of white paint

5 0

3 years ago

Find the coordinates of point P that lies along the directed line segment AB in a 2:3 ratio given A (-2, 1), B (3, 4).

saul85 [17]

Answer:

$P(x,y) = (0,\frac{11}{5})$

Step-by-step explanation:

Given

$A = (-2,1)$

$B = (3,4)$

$m:n = 2:3$

Required

Determine the coordinates of P

The coordinate of a point when divided into ratio is:

$P(x,y) = (\frac{mx_2 + nx_1}{m + n},\frac{my_2 + ny_1}{m + n})$

Where

$(x_1,y_1) = (-2,1)$

$(x_2,y_2) = (3,4)$

$m:n = 2:3$

This gives:

$P(x,y) = (\frac{2 * 3 + 3 * -2}{2 + 3},\frac{2 * 4 + 3 * 1}{2 + 3})$

$P(x,y) = (\frac{6 - 6}{5},\frac{8 + 3}{5})$

$P(x,y) = (\frac{0}{5},\frac{11}{5})$

$P(x,y) = (0,\frac{11}{5})$

5 0

3 years ago