mathematics secondary school

## Answer

**Answer 1**

Answer:

20

Step-by-step explanation:

The smallest number that can be multiplied by anything is 20

20x1 = 20

5x4 = 20

2 x 10 = 20

## Related Questions

Jackson drove 452 miles in 8 hours. What was his average speed in miles per hour? Formulate your answer in its simplest form.

### Answer

Answer:

Jackson drove an average speed of 56.5 miles per hour.

Step-by-step explanation:

First identify what you know:

1) Jackson drove 452 miles.

2) He drove 452 miles in 8 hours.

Let's calculate how many kilometers he drove in one hour! To do this, we just need to divide the total kilometers traveled by the total time traveled.

452 miles/8 hours = 56.5 miles per hour

Jackson averaged 56.5 miles per hour!

The answer is 113/2. I hope this helped

Suppose you and some friends are going to the cinema. The amount of money you spend on tickets is directly related to the number of people buying tickets. What is the constant of variation if you spend $48 on six tickets?

### Answer

Answer:

The answer is 8

Step-by-step explanation:

Pictured is the FGHK kite. Aviator F G H K is depicted. Sides G F and F K are congruent. The length of GH is 5 m + 1 and the length of HK is 3 m + 7. What is the value of m? meters=2 meters=3 meters=15 meters=16

### Answer

Set the two equations equal and solve:

5 meters + 1 = 3 meters + 7

1 links on each page:

5 meters = 3 meters + 6

Subtract 3 m from both sides:

2 meter = 6

Divide both sides by 2:

METRO = 3

The value of m is the FGHK kite given as 3.

Comet

A kite is a quadrilateral (it has four sides and four corners) whose adjacent sides are equal.

About comet FGHK:

GH = HK (adjacent sides)

5 meters + 1 = 3 meters + 7

metro = 3

The value of m is the FGHK kite given as 3.

Read more about Kite at: brainly.com/question/25776644

. When driving 11 km, the wheel of a car makes 5000 revolutions. Find the radius of

Kreis.

### Answer

The radius of the circle is 35 cm

Step-by-step explanation:

One revolution of a wagon wheel = the length of the circumference of the wheel

Radius says r cm

The perimeter = 2 X pi X r

At 5000 revolutions the wheel travels 2 x pi x r x 5000 cm

Is there a problem,

2 x pi x r x 5000 = 11 x 1000 x 100

o, pi X r = (11 x 1000 x 100)/(2 x 5000)

o, r = 110 /pi

o, r = (110 x 7)/22

= 35

Here's the answer.

Her weekly net income is $380. Your total budgeted monthly expenses are $1,550.00. Do you have a surplus or a deficit at the end of the month?

### Answer

Answer: shortage

Step-by-step explanation:

Net weekly income = $380

Net monthly income = $380 * 4 weeks = $1520.

Monthly Expenses = $1550

Balance = Monthly Income - Monthly Expenses = -$30.

The negative sign shows a shortfall of $30 per month

Chang estimates the volume of his bathtub. The actual volume of your bathtub is 37 gallons. Chang's estimate is 31 gallons. If necessary, determine the absolute error and the percentage error of Chang's estimate. Round your answers to the nearest tenth.

### Answer

The absolute error is 6. The percentage error is 16.22%.

Solution:

Given the,

The actual volume of your bathtub is 37 gallons.

The estimate is 31 litres.

Find the absolute flaw

absolute error = | Measured Value - Actual Value |

absolute fout = | 31 - 37 |

absolute fout = 6

Find the percentage error

By substituting we get,

A negative sign means a percentage decrease

Therefore, the percentage error is 16.22%

If the sum of a number and nine is tripled, the result is five less than the number. Find the number.

### Answer

The number in the expression 3(n + 9) = n - 5 is - 16.

What is a Numerical Expression?

A numerical expression is a mathematical statement written in terms of numbers and unknown variables. We can form numerical expressions from statements.

Given: The sum of a number and nine is tripled, the result is five less than the number.

Assuming the number is "n", the statement can be expressed numerically as

3(n + 9) = n - 5.

3n + 27 = n - 5.

3n - n = - 5 - 27.

2n = - 32.

n = - 16.

Read more about numerical expressions here:

brainly.com/vraag/29199574

#SPJ2

Answer:

- sixteen

Step-by-step explanation:

Let n be the number, then the sum of the number and nine is n + 9

So tripling means multiplying by 3

3(n + 9) = n - 5 (5 less than the number)

3n + 27 = n - 5 (subtract n from both sides)

2n + 27 = - 5 (subtract 27 from both sides)

2n = - 32 (divide both sides by 2)

n = - 16

Therefore, the number is - 16

The scatter plot models the relationship between the number of hours a student spends texting each week and the student's average grade. Using the line of best fit, calculate the grade point average of a student who texts for 12 hours. A)2.5

B) 2,75

c)3.0

D)3.25

### Answer

Answer:

The answer is a

Step-by-step explanation:

Because the student spends more time on the phone than studying, he fails the class and has a low grade point average.

answer to

Step-by-step explanation:

Combining similar terms 4x -4 + (-5x +8)

SHOW YOUR WORK

### Answer

Step-by-step explanation:

4x - 4 + ( -5x + 8)

4x - 4 - 5x + 8

4x -5x -4 +8

- x + 4

How many diagonals can you draw from a vertex?

### Answer

The answer is 3 diagonals

Find the equations of the vertical and horizontal asymptotes, if any, for f(x) = 2x/x+4 A. X=4,x = -2

--2. --4

C. X=-4, y = 2

dx--4, 7--2

Choose the best answer from the available options

### Answer

Option C: are the asymptotes of the equation.

Explanation:

The equation is

The vertical asymptote of the equation can be determined by setting the denominator of the equation equal to zero.

We also

Therefore, the vertical asymptote of the function is

Now we determine the horizontal asymptote.

The horizontal asymptote of the function can be found by dividing the leading coefficient of x in the numerator by the leading coefficient of x in the denominator.

We also

Therefore, is the horizontal asymptote of the function

Therefore, option C is the correct answer.

In a parallelogram, the angles are successive

### Answer

Answer:

because they are complementary angles

Y=x-7

Y=-4x-2

Please help solve by replacement

### Answer

Answer:

(sixteen)

Step-by-step explanation:

Considering the 2 equations

y = x - 7 → (1)

y = - 4x - 2 → (2)

Replace y = x - 7 with (2).

x - 7 = - 4x - 2 (add 4x on both sides)

5x - 7 = - 2 (add 7 to both sides)

5x = 5 (divide both sides by 5)

X = 1

Replace x = 1 in both equations with the correct value of y

X = 1 replaced by (1)

y = 1 - 7 = - 6

The solution is (1, - 6 )

Answer:

6= 7-1

-14= -4·3-2

Step-by-step explanation:

Alexa drove 104 miles in 2 hours. What was his average speed in miles per hour? Formulate your answer in its simplest form.

### Answer

Answer:

Alexa drove an average of 52 miles per hour (mph).

Step-by-step explanation:

First identify what you know:

1) Alexa drove 104 miles.

2) Alexa drove 104 miles in 2 hours.

So we need to calculate how many miles he traveled in one hour! To do this, we simply divide the number of kilometers traveled by the time traveled.

104 miles/2 hours = 52 miles per hour

On average, Alexa was traveling at 52 miles per hour, but this is ONLY the average. That doesn't mean you were going 52 mph the entire time. You may have driven faster for 20 minutes and then slowed down for 30 minutes. 52 mph is just the average speed.

I hope it helps! :) :)

Answer:

52 miles per hour

Step-by-step explanation:

Least common multiple of 15, 10, and 3

### Answer

Answer:

30 is the least common multiple of 15, 10, and 3.

Step-by-step explanation:

In fact, LCM is the smallest number divisible by given numbers, so 30 is the smallest number divisible by 15, 10, and 3.

the least common multiple is 30

A cave diver descends 110 feet in 10 minutes at a constant speed. Express the rate of change of the cave diver's position as a rational number in terms of a quotient of integers.

### Answer

Answer:

decreases 10 feet every 1 second or 10:1

Step-by-step explanation:

Solve the system 2x + 3y = -8

(2-4)

B)

(1,-2)

without solution

infinite solutions

### Answer

Answer:

R. (2,-4)

Step-by-step explanation:

First option: (2,-4)

2(2) + 3(-4) = -8

4 - 12 = -8

-8 = -8 {correct}

Second option: (1,-2)

2(1) + 3(-2) = -8

2 + -6 = -8

-4 = -8 {False}

Find the coordinates of the intersection of the two lines (the equations of the lines are given below). 2x - 7 years = 2

4x + 5j = 42

Hint: solution by elimination

### Answer

The coordinates of the intersection of the two lines are

Explanation:

The two equations are and

To find the intersection of the two lines, we will set up the equations using the method of elimination.

So if we multiply the equation by -2, we get:

Plugging into the equation, we get:

If we add both sides by 14, we get:

If we divide both sides by 2, we get:

Therefore, the coordinates of the intersection of the two straight lines

Kendrick and Pearl spend a total of $92 at an amusement park. Together they spend $28 on parking and lunch, the rest on two admission tickets. How much does each ticket cost? Kendrick and Pearl spend a total of $92 at an amusement park. Together they spend $28 on parking and lunch, the rest on two admission tickets. How much does each ticket cost? Kendrick and Pearl spend a total of $92 at an amusement park. Together they spend $28 on parking and lunch, the rest on two admission tickets. How much does each ticket cost?

### Answer

Answer:

8

Step-by-step explanation:

28+a^2=92 28+8^2=92

Suppose adults have normally distributed IQ scores with a mean of 98.8 and a standard deviation of 17.1. Find the first quartile, Q1, which represents the IQ score that separates the bottom 25% from the top 75%. (Tip: Draw a diagram.)

### Answer

Using the normal distribution, the IQ score separating the bottom 25% from the top 75% is 87.

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normal probability distribution

Normal distribution problems can be solved using the z-score formula, which in a set of mean and standard deviation is:

- Each z-score is assigned a p-value, which we determine using the z-table. This p-value represents the percentile of the X measure.

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

- The average of 98.8 means that
- The standard deviation of 17.1 means the following:
- The value of interest is the 25th percentile, which is X when Z has a p-value of 0.25, which is X when Z = -0.675.

De IQ-score is 87.

There is a similar problem at brainly.com/question/21628677

Answer:

The IQ score that separates the bottom 25% from the top 75%. amounts to 87.3

Step-by-step explanation:

Assuming adults have IQ scores that are normally distributed, with a mean of 98.8 and a standard deviation of 17.1.

To find the first quartile, we calculate X such that P(X