A student worked out an equation and below is his solution. is the answer correct? If not, where was the error and what is the correct answer?
-4(6-r)=12
-24-4R=12
-4R=36
R=-9

Answer: 5

Step-by-step explanation: yes count up

Answer:

Step-by-step explanation:

So basically since she used 15 orange balloons she would have to use 10 green balloons

Answer:

3x=15

Step-by-step explanation:

Answer:

-18

Step-by-step explanation:

-3d  -3(6)=-18

Answer:

14 ft

Step-by-step explanation:

50= 2x + 2(x+3)

50= 2x+2x+6

50=4x+6

-6        -6

44=4x

4     4

x=11 (width) +3 =14(length)  

11+11=22   14+14=28     22+28=50

Answer: (y + 3) = -1/3 (x - 2)

Step-by-step explanation:

Point-slope form has the form of

y - y1 = m (x - x1)

Where

y1 is the y-value of a point on the line

x1 is the x-value of a point on the line

m is the slope of the line

The problem already gives a point on the line, (2, -3)

(y + 3) = m (x - 2)

Remember to put the opposite value of the x and y values. (In other words, do NOT write (y - 3) = m (x + 2) )

The slope of a perpendicular line is the opposite reciprocal of slope of the line it is perpendicular to. The perpendicular line given in the equation is

3x - y = 4

When rearranged to slope-intercept form, we get

y = 3x - 4

Meaning the slope of the perpendicular line is 3. The opposite reciprocal of positive three is negative one-third. Therefore, the slope of the line we are solving for is -1/3.

Answer:

Step-by-step explanation:

For Logan:

Logan swam 750m

Logan distance = 750m

Time taken = 1.3×3600

Time taken = 4680

Logan average speed = distance/time

average speed = 750/4680

Logan Average speed = 0.160m/s

Mila swam 2.3 of Logan's distance

Milan distance = 1725m

Time taken = 1.4×3600

Time taken = 5040s

Milan average speed = distance/time

Milan average speed = 1725/5040

Milan average speed = 0.342m/s

Comparing Milan speed with Logan speed:

Difference in speed = 0.342-0.160

Difference in speed = 0.182m/s

This means that Milan speed is 0.182 greater than Logan speed.

Answer:

f=2

Step-by-step explanation:

Answer:

f ( x ) = 5

Step-by-step explanation:

Step 1:

f ( x ) = x + 2      Function

Step 2:

f ( x ) = 3 + 2      Input x

Answer:

f ( x ) = 5     Add

Hope This Helps :)

Answer: 90 mins/ 1 hour and 30 mins

Step-by-step explanation:

15x6= 90

Answer: 0.17 or not rounded, 0.17175572519.

Step-by-step explanation: 6 x 3 x 2.5 = 45, now we just need to divide 45 by 262, so 45/262 = 0.17175572519, or rounded, 0.17.

Hope this helps! :)

Answer:

110 pounds of peaches should be ordered

Step-by-step explanation:

Here, we want to calculate the number of pounds of peaches to order.

Let the number of peaches to ordered be x peaches

Now, since 9% is expected to be bad, then the percentage expected to be good will be 91%

Thus;

91% of x = 100

91/100 * x = 100

91x = 100 * 100

x = 10000/91

x = 109.89

Since we cannot have fractional peaches, then x must be 110

Answer:

12

Step-by-step explanation:

1/2x+2=2/3x

2= 2/3x-1/2x

2=4/6x-3/6x

2=1/6x

multiply both sides by 6

x=12

Answer: x = 12

Step-by-step explanation:

1/2x + 3= 2/3x + 1​

= 1/2x + 3 - 3 = 2/3x +1 -3

Simplify

= 1/2x = 2/3x -2

= -1/6x = -2

multiply both sides by -6

(-1/6x)(-6) = (-2)(-6)

x = 12

Answer:

The first column would be (x,y)---> (x,-y)

The second column would be (x,y)---> (x+3, y-8)

The third column would be (x,y)----> (-x,-y)

Then the last column would be (x,y)---> (x-8, y-3)

Answer:

39x6=234

Step-by-step explanation:

Answer:

my laptop doesnt let me download pdf :/

Step-by-step explanation:

Let's solve your equation step-by-step.

−5(x+4)=70

Step 1: Simplify both sides of the equation.

−5(x+4)=70

(−5)(x)+(−5)(4)=70(Distribute)

−5x+−20=70

−5x−20=70

Step 2: Add 20 to both sides.

−5x−20+20=70+20

−5x=90

Step 3: Divide both sides by -5.

−5x

−5

=

90

−5

x=−18

Answer:

x=-18

Step-by-step explanation:

-5(x+4)=70

x+4=-14

x=-14-4

x=-18

Answer:

2 g/cm3

Step-by-step explanation:

D=m/V

D=12g/6 cm3

D=2 g/cm3

Answer:

2g/cm3

Step-by-step explanation:

Answer:−1.429

I need brainliest

Step-by-step explanation:

Answer:

The answer is 135 + 1/2x = 143 - 1/4x

Step-by-step explanation:

Answer:

1,267,200

Step-by-step explanation:

Given that the map reported that the scale is 1 inch to 20 miles.

Recall that there are 63,360 inches in 1 mile, thus, in 20 miles, we have 20 x 63,360 = 1,267,200

Therefore, the scale of 1 inch to 20 miles can also be represented as 1 to 1,267,200

1 cup of milk is used with 3/4 cup of water

Explanation:

milk : water

1/3 : 1/4

x12 to get rid of fractions:

12/3 : 12/4

= 4/3

which means 4 cups of milk are used with 3 cups of water

÷4:

1 cup of milk is used with 3/4 cup of water.

Answer:

gggggg 4 h5re gedfr

Step-by-step explanation:

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Answer:

-13/4

Step-by-step explanation:

1.) convert to improper fraction.

-39/8 * 2/3

2.) multiply top

-39 * 3 = -117

3.) multiply bottom

8 * 3 = 24

4.) simplify

-117/24 = -13/4

9514 1404 393

Answer:

  (-9, -3)

Step-by-step explanation:

For x=-9, we have f(x) = 6.

For x=-9, -1/2f(x) = -1/2(6) = -3. The corresponding point is (-9, -3).

can I see a picture of it

Answer: The side length is 3 yards.

Step-by-step explanation:

To find the area of a square, you have to square one of it's side lengths since they all share the same length.  Since we know the area, and we need to find the side length so we just need to find the square root of the area.

[tex]\sqrt{9}[/tex] = 3    

The side length is 3 yards.

The length of each side of a square is, 3 yards.

A rectangle is a two dimension figure with 4 sides, 4 corners and 4 right angles. The opposite sides of the rectangle are equal and parallel to each other.

We have to given that;

⇒ An area of square = 9 yards²

Now, We know that;

⇒ Area of square = Side²

Let the side of square = a

So, We get;

⇒ a² = 9

⇒ a = √ 9

⇒ a = 3 yards

Learn more about the rectangle visit:

https://brainly.com/question/2607596

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Answer: 47.12

Step-by-step explanation: 15 x pi. Or 15 x 3.14159.