9) Manny is 7 years older than David. Jeremy is 2 years younger than Manny. Their combined
ages equals 102. How old are Manny, Jeremy and David?

Answer:

Step-by-step explanation:

Cycles of reduction:

Material will be left:

Answer:

36 grams

Step-by-step explanation:

We have 576 grams of the mercury like substance.

Half of it's lifespan is 64 hours.

The time is 256 hours.

256 ÷ 64 = 4

Material will be left:

576 x [tex](1/2^{4} )[/tex]

576 x 1/16 =  36 grams

Answer:

Students altogether liked cola the best 26

Step-by-step explanation:

Total no of pupils = 60

Boys = 32

girls = 28

we will make a table

Gender         cola             milk               water       total

Boys             12                                         4              32

Girls                                                          9                28

we can find the missing numbers

Let x be for milk

In boys  12 + x + 4 = 32

                 x  = 16

In girls

          as 21 liked milk altogether

so girls = 21 - 16 = 5

Gender         cola             milk               water       total

Boys             12                 16                      4              32

Girls                                   5                      9                28

For cola let y

in girls

y + 5 + 9 = 28

y = 14

Gender         cola             milk               water       total

Boys             12                 16                      4              32

Girls              14                   5                      9            28

Altogether cola = 14 + 12 = 26

Answer:

26

Step-by-step explanation:

answer is 26

trust

Answer:

I'm pretty sure it's b or c but I think c

Slope is the change in y over the change in x:

Slope = (-7 - 1) / (2 - 5)

Slope = -8/-3

Slope = 8/3

Answer:

Step-by-step explanation:

I'd be glad to try and help. What's the question?

Answer:

Step-by-step explanation:

what is your question?

Answer:

x + y = 5

12x + 8y = 48

x = -y + 5

12(-y + 5) + 8y = 48

-12y + 60 + 8y = 48

-4y + 60 = 48

-4y = -12

y = 3

x + 3 = 5

x = 2

12(2) + 8(3) = 48

24 + 24 = 48

x = 2 hours of washing cars

y = 3 hours of landscaping

Hope this helps!!

- Kay

The value of x and y should be 2 and 3.

Since Gianna is working two summer jobs, making $12 per hour washing cars and $8 per hour landscaping. Last week Gianna worked a total of 5 hours and earned a total of $48.

So here the equation should be

x + y = 5

12x + 8y = 48

we can write as

x = -y + 5

So,

12(-y + 5) + 8y = 48

-12y + 60 + 8y = 48

-4y + 60 = 48

-4y = -12

y = 3

Now

x + 3 = 5

x = 2

Therefore, The value of x and y should be 2 and 3.

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Answer:

Step-by-step explanation:

-28x + 10y = -120

 40x + 10y = 180

12x = 60

x = 5: D is the answer

8(5) - 2y = 36

40 - 2y = 36

-2y = -4

y = 2: A is the other answer

Answer:

b. x less-than StartFraction 10 Over 3 End fraction

The solution for the given inequality is x<4. Therefore, option D is the correct answer.

Given that, 5x-1<2x+11.

Inequalities are the mathematical expressions in which both sides are not equal. In inequality, unlike in equations, we compare two values. The equal sign in between is replaced by less than (or less than or equal to), greater than (or greater than or equal to), or not equal to sign.

Here, inequality 5x-1<2x+11 can be solved as follows

Add 1 on both the sides of inequality, we get

5x<2x+12

Subtract 2x on both the sides of inequality, we get

3x<12

Divide 3 on both the sides of inequality, we get

x<4

The solution for the given inequality is x<4. Therefore, option D is the correct answer.

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Answer:

(2,0)

Step-by-step explanation:

You know that y for your x-intercept has to be 0 so just plug in 0 for y and solve from there

Answer: One

Step-by-step explanation:

Answer:

1/4

4 × .25 = 1

Answer:

[tex]\dfrac{8}{3}\ \text{inches}[/tex] or [tex]2.67\ \text{inches}[/tex]

Step-by-step explanation:

The photo has length 6 inches and width 4 inches.

The ratio of length to breadth is

[tex]\dfrac{l}{w}=\dfrac{6}{4}=\dfrac{3}{2}[/tex]

Now the reduced length of the photo is 4 inches.

Let [tex]x[/tex] be the reduced width of the photo

[tex]\dfrac{3}{2}=\dfrac{4}{x}\\\Rightarrow x=\dfrac{4}{3}\times2\\\Rightarrow x=\dfrac{8}{3}\ \text{inches}=2.67\ \text{inches}[/tex]

The width of the reduced photo is [tex]\dfrac{8}{3}\ \text{inches}[/tex] or [tex]2.67\ \text{inches}[/tex].

Answer:

14

Step-by-step explanation:

fjgejrguiy4fvjbbyeuakg2y5765n  

We must use the given numbers from the table to graph the line.

According to this graph, the slope of the line is [tex]\frac{3}{5}[/tex].

According to this graph, the slope of the line will be; 3/5.

Its slope would be:

[tex]m = \dfrac{y-q}{x-p}[/tex]

The slope of parallel lines is the same. Slopes of perpendicular lines are negatively reciprocals of each other.

Using any two pairs from the table of values given, (-2, 1) and (3, 4):

Where, y = 4, q = 1

x = 3, p = -2

Plug in the value into the slope formula;

[tex]m = \dfrac{y-q}{x-p}\\ m = \dfrac{4-1}{3 + 2}[/tex]

m = 3/5

According to this graph, the slope of the line will be; 3/5.

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Answer:

1, 500km

Step-by-step explanation:

[tex] \frac{75}{100} \times 2000 \\ \\ = 1500[/tex]

Answer: 1,500km

Step-by-step explanation:

Answer:

Balanced Force

Step-by-step explanation:

When 2 objects pushing against each other have the same force, their forces are cancelled out, giving them balanced force

Answer:

59.4

Step-by-step explanation:

Answer:

He walked 59.4 miles in 11 days

Step-by-step explanation:

You take the number of miles he walked in one day,  (5.4), then multiply it by the number of days he walked (11), so the answer is 59.4

Answer:

10.5, i just looked it up so pardon if its wrong.

Step-by-step explanation:

Answer: B

Step-by-step explanation:

Just took the test

Answer: (1,500 = 30) (90 = 1.80)

Step-by-step explanation:

(1,500 = 30) (90 = 1.80) - This I'm pretty sure is the answer.

Answer: 2 pair of leggings is $24 she has $36 so she can buy 1 shirt

Answer: x=10, y=7.5

Step-by-step explanation:

For this problem, we are given that BD bisects ABC. That means ABD and DBC are equal to each other. We are also given that ABC is 25. With the given information, we can create two equations.

Equation 1: 2x-y=3y-x

Equation 2: 2x-y+3y-x=25

Now, we can solve for x and y.

2x-y+3y-x=25             [combine like terms]

x+2y=25

Let's simplify Equation 1 by solving for a variable.

2x-y=3y-x                    [add both sides by x]

3x-y=3y                       [add both sides by y]

3x=4y                           [divide both sides by 3]

x=4/3y

Now that we have x, we can plug it into any equation to solve for y.

x+2y=25                      [plug in x=4/3y]

(4/3y)+2y=25              [combine like terms]

10/3y=25                     [multiply both sides by 3/10]

y=15/2

Now we can plug in y=15/2 to solve for x.

x=4/3y                          [plug in y=15/2]

x=4/3(15/2)                  [multiply]

x=10

Now, we know that x=10 and y=7.5.

Answer:

it would be a max of 22 mins

Step-by-step explanation:

25C=4 mins

10C*10 mins =1$

$1.25

2.10-1.25=.85

10C*8=80C

so

4+10+8=22

Tony can talk for a maximum of 22 minutes on the phone which is determined by the inequality 0.25 + 0.10 (x-4) ≤ 2.10.

Inequality is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are not equal.

According to the given question, we can write the inequality would be as:

⇒ 0.25 + 0.10 (x-4) ≤ 2.10

x = an integer number of minutes.

Subtraction is required since the first four are covered by the 0.25 price. Because fractional minutes count as a full minute, an integer is required.

⇒ 0.25 + 0.10x -0.40 ≤ 2.10

⇒ -0.15 +0.10 x ≤ 2.10

⇒ 0.10x ≤ 2.25

⇒ x ≤ 2.25 /0.10

⇒ x ≤ 22.5 ≈ 22

Therefore, the maximum number of whole minutes will be 22 minutes.

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Answer:

OM is congruent to PO, if M is the midpoint of PM

Step-by-step explanation:

a  Converse means If q , then p .

In this case ''M is the midpoint of then PM'' that would be P

Q would be '' OM is congruent to PO'' .

   Reverse the statements.

Answer:

The equation of the line in the slope-point form is y - 7 = 10(x + 6)

The equation of the line in the slope-intercept form is y = 10x + 67

Step-by-step explanation:

The slope-point form of the linear equation is y - y1 = m(x - x1), where

The slope-intercept form of the linear equation is y = m x + b, where

∵ The slope of the line is 10

∴ m = 10

∵ The line passes through the point (-6, 7)

∴ x1 = -6 and y = 7

→ Substitute them in the slope-point form above

∵ y - 7 = 10(x - -6)

∵ (-)(-) = (+)

∴ y - 7 = 10(x + 6)

∴ The equation of the line in the slope-point form is y - 7 = 10(x + 6)

→ Substitute m in the slope-intercept form

∵ y = 10x + b

→ To find b substitute x by -6 and y by 7 in the equation

∵ 7 = 10(-6) + b

∴ 7 = -60 + b

→ Add 60 to both sides to find b

∴ 67 = b

→ Substitute the value of b in the equation

∴ y = 10x + 67

∴ The equation of the line in the slope-intercept form is y = 10x + 67

Answer:

333,600,000 ( This could also be written as 333.6 million).

Step-by-step explanation:

Every hour, there are 13.9 million texts. As there are 24 hours in a day, you must do the equation 13,900,000x24. This is 333,600,000, which is your answer. I hope this helps

Answer:

0.0425

Step-by-step explanation:

Answer:

0.0425

Step-by-step explanation:

hope this helped ^^