Enter the value for x that makes the equation 3x – 5 = 7x - 21 true.

3 and 1/6

to check your work, if you do 2+1 you get 3. and to do 3 and 1/6 you must do 6 times 3 which is 18 and add 1 bc that is the numerator. so you get 19/6. 6 can go into 19 3 times giving you 18 which will then leave you with 1 making the answer to this question 3 and 1/6. 3 being for how many times 6 can go into 19. 1 being what is left of 19 after 6 fitting into 19 3 times. and 6 being the denominator.

Answer:

Step-by-step explanation:

180-96

180-96 = 84

96 + 84 = 180

Answer:

84

Step-by-step explanation:

Let x equal how much 96 is plussed by to get 180.

96 + x = 180

Switch the equation to subtraction:

180 - 96 = 84

Now, let's check our work!:

96 + 84 = 180

Hope this helps!

Answer:

B

Step-by-step explanation:

To know which line plot could represent the data, we take the sum of the miles covered by the runners and check if it adds up to 4 miles for each plot :

Plot 1 :

(1/12 * 1) + (1/8 * 2) + (1/6 * 1) + (1/4 * 2) + (1/3 * 1) + (1/2 * 3) = 2.8333

Plot 2 :

(1/6 * 2) + (1/4 * 2) + (1/3 * 2) + (1/2 * 3) + 1 = 3 +1 = 4 miles

Since the sum of the miles ran by the runners equals 4 miles for the second plot, hence, the second plot could represent the data for the runners.

Answer:

10 + (3 ÷ 24)

You're not showing me the options so I'm just picking a random expression that could possibly be equivalent.

Answer:

4

Step-by-step explanation:

Let the number be x

1/3 Of x= 12

1/3x=12

cross multiply

12= 3x

divide both sides by 3

x= 12/3

x= 4

Hence the number is 4  

Answer:

B

Step-by-step explanation:

B

Answer:

126

Step-by-step explanation:

I explained in the comments, but there are 42 people who could win 3 different spots. so 42 x 3= 126

Answer:

9the only correct answer is 9

Answer:

A

Step-by-step explanation:

p-2 ≥ 0

p ≥ 2

if p ≥ 2

p - 2 = 7

p = 9 (accettable)

if p < 2

-p+2 = 7

p = -5 (accettable)

Answer:

4:12=5:15

in propotion form

4/12=5/15

Step-by-step explanation:

Answer:

I hope so too!

Step-by-step explanation:

hehe

Answer: Probability cannot be greater than 1

so it would be D 1.1

Step-by-step explanation:

Answer:

D. 1.1

Step-by-step explanation: Hello

Answer:

Step-by-step explanation:

Equation of the line y = mx + c

The new line is perpendicular to 2x - 3y = -5

                                         - 3y = - 5 - 2x

                                           3y = 2x + 5

                                            y =[tex]\frac{2x}{3} + \frac{5}{3}[/tex]

Since the lines are perpendicular to each other : [tex]m_{1} . m_{2} = -1[/tex]

where [tex]m_{1} \ slope \ of \ the \ given \ line \ and \ m_{2} \ slope \ of \ the \ new \line\\[/tex].

Slope of the given line

                [tex]m_{1} = \frac{2}{3}[/tex]

Slope of the new line

                [tex]\\\frac{2}{3}.m_{2} = -1\\ m_{2} = -1 . \frac{3}{2} = \frac{-3}{2}[/tex]

The equation to the new line passing through (-4, -3) and perpendicular to 2x - 3y = -5

                            [tex](y - y_{1}) = m_{2}(x-x_{2} )\\\\(y - (-4)) = \frac{-3}{2}(x - (-3)) \\\\(y + 4) = \frac{-3}{2} (x+ 3)\\\\2(y +4) = -3(x+3)\\\\2y + 8 = -3x -9 \\\\2y = -3x - 9 -8\\\\y = \frac{-3x}{2} - \frac{17}{2}[/tex]

Answer:

x = 4

Step-by-step explanation:

If (and only if) we assume that the two horizontal lines are parallel, then angles 2x + 19 and x  + 23 are equal:

2x + 19 = x + 23

or:  x = 4

Answer:

20 Hours = 45 Houses

27 = 12 Hours

Step-by-step explanation:

The time taken to wash 45 houses is 20 hours and the number of houses in 12 hours is 27.

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that Stuart owns a window-washing business. He can wash the windows on 9 houses in 4 hours.

The time taken to wash 45 houses is,

9 houses = 4 hours

1 house = 4 / 9 hours

45 houses = ( 45 x 4 ) / 9 hours

45 houses = 20 hours

The number of houses in 12 hours,

4 hours = 9 houses

1 hour = 9 / 4 houses

12 hours = ( 9 x 12 ) / 4 houses

12 hours = 27 houses

Therefore, the time taken to wash 45 houses is 20 hours and the number of houses in 12 hours is 27.

To know more about an expression follow

https://brainly.com/question/13873976

#SPJ5

Answer:

11.11%

Step-by-step explanation:

The selling price is 250

The cost price is 250-25

= 225

Therefore the gain can be calculated as follows

=250-225x/225x×100

1/9 ×100

= 0.1111×100

= 11.11%

Hence the gain is 11.11%

Answer:

Step-by-step explanation:

length 5 is hypotenuse because hypotenuse is the longest side.

Answer:

47.4005

Step-by-step explanation:

Answer:

2/5

Step-by-step explanation:

Probability of choosing red = total red marbles / sum of marbles in the bag

sum of marbles in the bag = 12 + 8 = 20

8/20 = 2/5

Probability calculates the likelihood of an event occurring. The likelihood of the event occurring lies between 0 and 1. It is zero if the event does not occur and 1 if the event occurs.

For example, the probability that it would rain on Friday is between o and 1. If it rains, a value of one ids attached to the event. If it doesn't a value of zero is attached to the event.

Answer:

Step-by-step explanation:

Let older brother age be x and the age difference between the brothers be y

Younger brother's current age = x - y

When older brother's age was at x - y, younger brother's age was x - 2y = 2

When young brother's age will be at x, older brother's age will be x + y = 20

Subtracting the first equation from the second: 3y = 18

y = 6

x = 14

So the older brother is 14 and the younger brother is 8.

Sum of three son's ages now = 15 + 11 + 7 = 33

Daddy's age now = 45

Age difference = 12

Each year, daddy's age goes up by 1 while the sum of three son's ages goes up by 3.

Dividing the age difference by the difference in age gain, 12 / (3 -1) = 12 / 2

= 6

So in 6  years when daddy is 51 and the sum of sons at 21, 17 and 13 will be equal.

Answer:

Step-by-step explanation:

older bro age is x

younger bro age is y

age diff = x - y

it was (x-y) years ago when older bro was at age y

younger bro age then was y - (x - y) =2

2y - x = 2

younger bro will be at age x in (x-y) years

older bro age then will be x + (x-y) = 20

2x - y = 20

4x - 2y = 40

adding 2y - x = 2

3x = 42

x = 14

y = 2*14 - 20 = 8

daddy' age, 45 is 12 over the sum of sons (15, 11 and 7)

in 1 yr, dad age +1 n sum of sons +3 = difference of 2

so in 12/2 = 6 yrs they will be the same

Answer:

49

Step-by-step explanation:

There is 7 different places each of the 7 people can stand. So you would do 7×7 which equals 49.

Answer:

Ohhk mate

kindly let us know what help u need

Answer:

ok? so what the question?

Step-by-step explanation:

Answer:

22.33 m²

Step-by-step explanation:

From the question given above, the following data were obtained:

Radius (r) = 8 m

Angle sustained (θ) = 40°

Pi (π) = 3.14

Area of small sector (A) =?

The area of the small sector can be obtained as illustrated below:

A = θ/360 × πr²

A = 40/360 × 3.14 × 8²

A = 40/360 × 3.14 × 64

A = 22.33 m²

Therefore, the area of the small sector is 22.33 m²

Answer:

Every integer greater than 1 is either prime or composite.

Step-by-step explanation:

Let us negate this statement.

Assumption - any number greater than 1, is neither prime nor composite.

A prime number has only 2 divisors, and a composite number has at least 3.

Let a number be X such that X >1.

Now X is divisible by 1 (Any integer is divisible by 1)

And X is divisible by X (X/X = 1, if X is not zero)

So by this, we see X has at least 2 divisors, X is either prime, or composite if it has more divisors!

So our assumption is wrong, and every integer greater than 1 is either prime or composite.

Answer:A. A rectangle, 7cm by 5 cm

Step-by-step explanation:

Answer:

,

Step-by-step explanation:

Answer:

x= 1/22 and y=-1/4 (I'm assuming that the equal signs are the only separators of the equation sequence, since there is no indicator that the so-called "sentences" are actually apart.

Answer:

33.1

Step-by-step explanation:

First you need to find the area of the circle. The radius is 10 which means that the area is 314. Since a circle has 360 degrees, and the shaded area is 38 degrees, you need to divide 314 by 360 which is 0.87. Then multiply by 38 because the shaded sector is 38. 0.87 x 38 = 33.1.

That is the answer.

Answer:

3x + 9

Step-by-step explanation:

for the y's, you increase by 3

for the b, it's the y-intercept

*y = mx + b

Given :-

Find :-

Using Formula

[tex]\boxed{\tt{\red{\:(Decrease)\:=\:(Sv\:-\:Ev)}}}[/tex]

==> Decrease value = 15000 - 14,000

==> Decrease Value = $1000

Now, Calculate % decrease .

★ % decrease = decrease × 100/Sv

==> % Decrease = 1000 × 100/15,000

==> % Decrease = 100/15