Given that y varies directly with x in the table below, what is the value of y if the value of x is 7?
х
2
4
6
10
60
y
12.
24
36
V
37
42
0 0 0 0
48
54

Answer:

2. 14 and 42

i hope it's right :)

Step-by-step explanation:

Let the number be x

So, the larger number = 3x

So the # is 14

Other #

42

The ages of John and Sam are 47.34 and 17.66 years respectively.

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

Given, John’s age is 12 more than 2 times Sam’s age. The sum of their ages is 65.

Let, The age of Sam be 'x'.

Therefore, 2x + 12 + x = 65.

3x = 53.

x = 17.66.

So, Sam is 17.66 years old and john is (65 - 17.66) = 47.34 years old.

learn more about numerical expressions here :

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Answer:

-1.225

Step-by-step explanation:

You basically multiply both numbers together.

The product of the given expression is -1.225

Multiplication is the mathematical operation that is used to determine the product of two or more numbers. If an event can occur in m different ways and if following it, a second event can occur in n different ways, then the two events in succession can occur in m × n different ways.

We are given that expression

−0.05 x 24 1 /2

We have;

−0.05 x 45/2

= -1.225

Hence, The product of the given expression is -1.225

Learn more about multiplications;

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Step-by-step explanation:

12• the graph pass by in × intercept - 3 / 2 or - 1 • 5

in y intercept 1 because

y - 1 = 2 / 3× means y = 2/3 × + 1 and y intercept we can get by assuming if × is = 0 and × value by assuming if y is equal to 0

so; × = { -3/ 2 , 0 } or { - 1 • 5 , 0 }

y= { 0 ,1 }

13 • by the same formula become the graph pass in × intercept -4/ 3 or 1• 3`

y intercept 4

Answer:

43, 360, 105

Step-by-step explanation:

For the first one, simply divide 172 by 4 and you will have your answer

172/4 = 43

For the second one add 85 and 275 for the answer

275 + 85 = 360

For the last one subtract 47 from 152 for the answer

152 - 47 = 105

Answer:

1. 43

2. 360

3. 105

Step-by-step explanation:

1.

We don't know what the 4 hearts are, so we can write an algebraic expression and solve for it

\(4x=172\)

Divide by 4

\(x=43\)

2. We don't know what the arrows are, so we can write an algebraic expression and solve for it.

\(x-85=275\)

Add 85 on both sides

\(x=360\)

3. We don't know what the box is, so we can write an algebraic expression and solve for it.

x + 47 = 152

Subtract 47 on both sides

\(x=105\)

Answer:

Step-by-step explanation:

To find the number of bananas, we need to determine the proportion of bananas in the total number of fruits based on the given ratio.

Let's assume that the ratio of oranges, apples, and bananas can be represented by 8x, 5x, and 2x, respectively, where x is a common multiplier.

The sum of the parts in the ratio is 8x + 5x + 2x = 15x.

We know that the total number of fruits is 120. Therefore, we can set up the following equation:

15x = 120

To solve for x, we divide both sides of the equation by 15:

x = 120 / 15

x = 8

Now that we know the value of x, we can find the number of bananas by multiplying it by the corresponding part of the ratio:

Number of bananas = 2x = 2 * 8 = 16

So, there are 16 bananas in total.

We can add all the parts to the ratio and get 15. Out of 15 parts, 2 are bananas. Now we can calculate how many fruits are in one part. One fifteenth of 120 is 8, so there are 8 fruits in one part. 2 parts are bananas, so multiplying 8 with 2 gives us our answer, 16.

Answer:

the first one should be 23 but I don't know about the other one sorry

Answer:

physician's not physicians'

Answer:

physician's

Step-by-step explanation:

" physicians' " doesn't make sense where it is in the sentence.

It's just physician's.

Answer:

since the 2 trapezium's are congruent SD should be equal to KO which is 2

so the answer is a)2 units

Hope it helps :)

Answer:

a. 2 units.

Step-by-step explanation:

The answer is two units because the trapezium ABSD is equal to PLOK,  meaing that SD and KO should also be equal. Meaning that SD equals 2 units.

Answer:

histogram would seeming be the best one please let me know if I got it wrong though

Answer:

Histogram

Step-by-step explanation:

A histogram is a bar graph that shows the frequency DATA values in the INTERVALS.

429 cm²

A(blue) =

= 2×6cm×10cm + 2×6cm×8cm + 8cm×10cm + (8cm×10cm - 5cm×4cm)

= 120cm² + 96cm² + 80cm² + 60cm²

= 356 cm²

A(green) =

= 4cm×5cm + 2×5cm×5cm/2 + 4cm×7cm

= 20cm² + 25cm² + 28cm²

= 73 cm²

A(total) =

= A(blue) + A(green)

= 356 cm² + 73 cm²

= 429 cm²

-16x= -80

x has to be a positive number in order to be multiplied by a negative number and still get a negative answer. Therefore D is the only correct option.

Answer:

B. -5

Step-by-step explanation:

-16x = -80

Divide both sides by -16, so that the x stands alone

(-16x) / (-16) = (-80) / (-16)

The two -16's cancel each other out on the left side

x = 80 / -16

So now all we have is 80 divided by -16, which we can simplify to

x = -5

Answer:

8

Step-by-step explanation:

If n=13 and you're subtracting 5, you subtract 5 from 13 which is 8.

13 - 5 = 8

Answer:

8

Step-by-step explanation:

Step 1: Given

n = 13

Step 2: Equation

n - 5

Step 3: Substitute / Evaluate

13 - 5

Answer:

8

Hope This Helps :)

Answer:

x - y

Step-by-step explanation:

if x is greater than y subtraction will be the result with a positive number.

Answer:

X is 32

Step-by-step explanation:

44 - 12 = 32

5th Grade Math

Ginny needs to save 32 dollars to buy a new pair of shoes.

Answer:

32

Step-by-step explanation:

44 - 12 = 32

To solve this equation, we can first simplify the left-hand side:

2^(3n+1) / (2^n - 1) = 3n + 16

We can then multiply both sides by 2^n - 1 to eliminate the denominator:

2^(3n+1) = (3n + 16)(2^n - 1)

Expanding the right-hand side:

2^(3n+1) = 6n*2^n + 16*2^n - 3n - 16

Simplifying:

2^(3n+1) = (6n - 3n)*2^n + (16 - 16)

2^(3n+1) = 3n*2^n

Dividing both sides by 2^n:

2^(n+1) = 3n

Taking the logarithm of both sides (with any base), we get:

n log(2) + log(2) = log(3n)

n = (log(3n) - log(2)) / log(2)

We can use a calculator to evaluate this expression, or simplify it further using logarithm rules:

n = log2(3n/2)

We can now use iterative methods or a graphing calculator to find a numerical solution for n. The solution is approximately 7.524.

Answer:

5

-5

1

-1

2

Step-by-step explanation:

Answer:D. 9 units 2. (-6,-

Step-by-step explanation:What is the distance between the points (4,-7) and (-5,-7)? A. 1 unit B. 3 units C. 7 units D. 9 units. 2. Fill in the blanks. Write the coordinates of two points that are the given distance from these points and horizontal/vertical: 2. 5 units from (-1,-2) ( ,-2 and ( ,-2) 3. 8 units from (2,4) (2, ) and (2, ) 4. 3 units from (-7,-5) (-7, ) and (-7, ) 5. 6 units from (4,-1) (4, ) and (4, ) 6. 10 units from (-1,9) ( ,9) and ( ,9) 7. 7 units from (-3,2) ( ,2) and ( ,2)

Answer:

1. D

Step-by-step explanation:

You can add the X coordinates together and you will get the length (sorry I can't answer the others ones I don't have enough time rn)

Answer:

12x12 12x6 H = 46cm

Step-by-step explanation:

took quiz

Answer:

46 cm

Step-by-step explanation:

I learned this formula in math last year

This is a system of three equations with two unknowns, x and y. To solve it, we can use the method of elimination. First, we can eliminate y by subtracting the first equation from the second equation:

x^2-2y=3 - (x-2y=3) => x^2-x=0

Then we can factor the resulting equation and find the values of x:

x^2-x=0 => x(x-1)=0 => x=0 or x=1

Next, we can substitute these values of x into any of the original equations and find the corresponding values of y. For example, using the first equation:

x-2y=3 => 0-2y=3 => y=-3/2 when x=0 x-2y=3 => 1-2y=3 => y=-1 when x=1

Finally, we can substitute these values of x and y into the expression x2y-2xy2 and evaluate it:

x2y-2xy2 => 02(-3/2)-2(0)(-3/2)2 => 0 when x=0 and y=-3/2 x2y-2xy2 => 12(-1)-2(1)(-1)2 => -3 when x=1 and y=-1

Therefore, the value of x2y-2xy2 can be either 0 or -3 depending on the values of x and y.

Explanation:

The data from the stem-and-leaf plot is:

10,

24,25,26,

30,30,32,33,

40,45,46

Add up those values

10+24+25+26+30+30+32+33+40+45+46 = 341

Then divide over n = 11 which is the sample size.

341/11 = 31 is the arithmetic mean.

Answer:

341/11 = 31 is the arithmetic mean.

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Answer:

400

Step-by-step explanation:

Answer:

Salary option #2($2400+3.3%)

Step-by-step explanation:

Salary option #1=1500+(5.5% of 7500)

=$1912.50

Salary option #2=2400+(3% of 7500)

=$2625

Answer:

Using the mean sales value $2400 basic + 3% commision is the better deal

Step-by-step explanation:

As the sales figures are not fixed to a single value lets use the mean (average) value:

In statistics the notation use for this is as follows:

Let the sales value be  

x

Then the mean sales value is:  

7500

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