All categories

3 years ago

Two more than4 times a number is -18

1 answer:

6 0

-5, work backwards. you know 2 + 4 * ? = -18.
start by subtracting 2 from both sides giving you 4 * ? = -20.
now you divide 4 from both sides giving you ? = -5

i used ? to represent the missing number btw!!

You might be interested in

Maria is coloring in triangles,squares and circles using 3 colors red blue and yellow or Maria only uses a color on each shape o

padilas [110]

Answer:

The number of possible color combinations that she can make = 6

Step-by-step explanation:

The number of available colors = 3

The question states that Maria only uses a color on each shape at a time,

The number of possible color combinations that she can make = 3!

n! = n*(n -1)*(n-2)*......*1

3! = 3 * 2 * 1

3! = 6 combinations

The number of possible color combinations that she can make = 6

3 0

3 years ago

Amy and Zach each have 24 feet of fencing for their rectangular gardens. Amy makes her fence 6 feet long . Zach makes his fence

saul85 [17]

For this case we have that by definition, the area of a rectangle is given by:

$A = w * l$

Where:

w: Is the width of the rectangle

l: is the length of the rectangle

Each of the girls has 24 feet of fencing, that is, the perimeter is $P = 2w + 2l = 24.$

Amy:

$l = 6 \ ft\\2w + 2 (l) = 24\\2w + 2 (6) = 24\\2w + 12 = 24\\2w = 24-12\\2w = 12\\w = 6$

Thus, Amy's fence area is: $A = 6 * 6 = 36 \ ft ^ 2$

Zach:

$l = 8 \ ft\\2w + 2l = 24\\2w + 2 (8) = 24\\2w + 16 = 24\\2w = 24-16\\2w = 8\\w = 4$

Thus, the area of Zach's fence is: $A = 4 * 8 = 32 \ ft ^ 2$

Answer:

Amy's garden has a greater area

$36 \ ft ^ 2-32 \ ft ^ 2 = 4ft ^ 2$ , is $4 \ ft ^ 2$ greater

5 0

3 years ago

Read 2 more answers

Find X Options: 6 4 square root 6 6 square root 146

elena-14-01-66 [18.8K]

For this case we can apply the Pythagorean theorem to find "x". Taking the rectangle triangle of base 5 we have:

$x = \sqrt {11 ^ 2-5 ^ 2}\\x = \sqrt {121-25}\\x = \sqrt {96}\\\x = \sqrt {4 ^ 2 * 6}$

By definition of power properties we have:

$\sqrt [n] {a ^ m} = a ^ {\frac {m} {n}}$

So:

$x = 4 \sqrt {6}$

Answer:

$x = 4 \sqrt {6}$

8 0

2 years ago

Read 2 more answers

The polynomial in standard form that represents the perimeter of the quadrilateral

Naddik [55]

Answer:

3(4x-1)

Step-by-step explanation:

I hope this is correct and helpful

6 0

2 years ago

A little stuck on this problem help

KatRina [158]

Answer:

∠N = 31

Step-by-step explanation:

MN = MP

∠N = ∠P = x+3

∠M + ∠N + ∠P = 180

4x+6 + x+3 + x+3 = 6x + 12 = 180

x = 28

∠N = 28 + 3 = 31

5 0

3 years ago