Find the circumference of a circle with
diameter, d = 7.65m.
Give your answer rounded to 2 DP.

Answer:

year 7 have 135 students

year 9 have 45 students

Step-by-step explanation:

200=total students

360=value of the whole chart

1/2×360

=180

year 8 have 180students

360-180=180

the students remain are 180

1/4×180

=45

year 9 have 45 students

180-45

=135

year7 have 135 students

Amount of water produced in 6 days is 15.6×10⁶.

We will simply perform multiplication to find the amount of water produced in 6 days.

Amount of water produced in 6 days = amount of water produced in one day × 6

Amount of water produced in 6 days = 2.6×10⁶×6

Performing multiplication to find the amount of water produced in 6 days

Amount of water produced in 6 days = 15.6×10⁶

The answer is in scientific notation as 15.6 is coefficient, 10 is base and 6 is exponent. Therefore, amount of water produced by plant in 6 days is 15.6×10⁶.

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Answer: 7 -(-3)=7+3=10

Step-by-step explanation:

If you multiply a negative sign be a negative number in parenthesis, then it becomes positive. So, -(-3) = 3

Can also be seen as -1*-3 = 3

Based on the beginning balance to Jackie's account and the deposits as well as the checks written, the balance at the end of the month was $644.86

At the end of the month, the simple formula to determine Jackie's balance is:
= Beginning balance + Cash inflows - Cash outflows

This means that to calculate the balance on Jackie's account at the end of October gives:

= Beginning balance + Deposits + Interest earned - Checks written - maintenance fee

= 432.23 + 752.34 + 3.42 - 532.13 - 11

= $644.86

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The distributive property should be used to rewrite each expression without parenthesis as follows:

The distributive property of multiplication states that when the sum of two (2) or more addends are multiplied by a specific number, the same output (result) would be produced as when each addend is multiplied respectively by the number, and the products are added together.

Mathematically, the distributive property of multiplication is given by this expression:

a(b + c) = ab + ac.

In conclusion, the distributive property of multiplication can be used to evaluate and rewrite a mathematical expression as shown above.

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Answer: 9.77 m

Step-by-step explanation:

xyz

The percentage of customers who chose whole wheat bread with turkey are 19 %.

Given that:-

Percentage of customers who preferred white bread = 55 %

Percentage of customers who preferred turkey with white bread = 46 % of those who like white bread.

Percentage of customers who preferred ham with whole wheat bread = 55 %

We have to find the percentage of customers who chose whole wheat bread with turkey.

Let the total number of customers at the local sandwich shop be 100x.

Percentage of customers who preferred whole wheat bread = (100-55) % = 45 %

45 % of 100x = 45x.

Percentage of customers who preferred turkey with whole wheat bread = (100-58) % of 45x = 42 % of 45x.

42 % of 45x = 18.9x ≈ 19x.

19x is 19 % of 100x.

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Answer: The answer is A, 19%

Step-by-step explanation: I had the same question.

Answer:

6000

Step-by-step explanation:

6000

divide by 12

72000 ÷ 12 = 6000

part 2

often to get the yearly salary if you have an hour salary

quickest math to get that is to multiply by 20

so if someone makes 20 an hour its probably

40000 per year

Answer:

$6,000

Step-by-step explanation:

Because his yearly salary is $72,000 (72k).

You need to divide $72,000 by 12, because there is 12 months in a year.

Hope this helps! If you need further explanation, I’ll be happy to help!

<3

Given: x = -2; y = -3; z = 5

It is clear that a numerical term can only be evaluated from an expression filled with numbers (no variables). In the expression provided, we have two variables, where y is being subtracted from x.

The expression can't be simplified because there is no like terms in the expression. However, since there are specific numerical values for each variable, we can substitute the numerical values for the variables in the expression and simplify the expression.

As planned, let's substitute the variables into the expression

Here, we know that x = -2 and y = -3.

If -2 is being subtracted by a negative integer, the negative integer will become positive, and the "minus sign" will be converted to a "plus sign".

We can conclude that 1 is the solution to the expression.

Simplification the expression in scientific notation 3.6 x 10^(-5)

What is Simplification ?

To implify is to make something simple. In mathematics, simply or simplification means reducing the expression/fraction/problem in a simpler version. Calculations and problem-solving techniques simplify the issue.

We have to multiply the expression

(9x10^-3) (4x10^-3)

We can rewrite this multiplication as

(9 x 4) x (10^-3 x 10^-3)

Now, use the exponent rule,

a^n x a^m = a^(n+m)

(9 x 4) x (10^(-3-3))

(9 x 4) x (10^(-6))

36 x 10^(-6)

Finally, write in scientific notation

3.6 x 10^(-5)

Hence, the scientific notation of the expression is 3.6 x 10^(-5)

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For equation f/3-1=1 the value of f is 6

In this question, we have been given an equation f/3-1=1

We need to solve given equation for f.

⇒ f / 3 - 1 = 1                        ................(Given equation)

⇒ f/3 = 1 + 1                            .................(add 1 to each side)

⇒ f/3 = 2                            

⇒ f = 2 × 3                           ....................(Multiply each side by 3)

⇒ f = 6

Therefore, For equation f/3-1=1 the value of f is 6

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Antidisestablishmentarianism

Answer: 74.5

6 drinks would cost 34.5 dollars
5.75 x 6 = 34.5
8 bags of popcorn would cost 40 dollars
5 x 8 = 40

Now add both numbers
40 + 34.5 = 74.5

74.5 is our answer

hope this helps :)


                                               
                                             

Answer:

Popcorn:40 Drinks:34.5

Step-by-step explanation:

All you gotta do is 5 times 8 for the popcorn and that would equal 40. For the drinks 5.75 times 6 abd you'll get 34.5 Sorry if I'm wrong

Ratio of number of boys to total number of children is 3:4 and number of girls is 8

The comparison of two values using the same unit is called a ratio. Divide the first amount by the second to get it. The quotient a/b is referred to as the ratio between a and b if a and b are two values of the same kind and with the same units, such that b is not equal to 0.

Let the number of boys be 3x and girls be x.(As they are in ratio of 3:1)

a) Total number of children = 3x + x = 4x

Ratio of number of boys to total number of children = [tex]\frac{3x}{4x}[/tex]

= 3:4

b) As, number of boys are 24

3x = 24

x = 8

, number of girls = x = 8

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Answer: YES

Step-by-step explanation:

As a result, angle M's supplement is 167 degrees, while angle M's complement is 77 degrees.

Angles that add up to 180 degrees are referred to as supplementary angles. For instance, angle 130° and angle 50° are complementary angles since the sum of these two angles is 180°. The sum of complimentary angles is 90 degrees. If the two additional angles are combined, they create a straight line and an angle.

Complementary angles are those whose combined angle is 90 degrees or less. To put it another way, two angles are said to be complimentary if they combine to make a right angle. In this case, we say that the two angles work well together.

So as per the given information:

we know that

a).  180-angle M=supplement of angle M

180-13=167 degree

b).  90-angle M=compliment of angle M

    =77 degree

Therefore, the supplement of the angle M is 167 degree and the complement of angle m is 77 degree.

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Answer:

Local Minimum: (-2.5, -2), (0, -2)

Local Maximum: (1, 2)

For the graph of the function, the new coordinates after the function translation is (D)  (-7,4), (-3,-5), and (6,2).

So, given function is f(x, y) with coordinates: (7,-4), (3, 5), and (-6, -2)

Therefore, for the graph of the function, the new coordinates after the function translation are (D)  (-7,4), (-3,-5), and (6,2).

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y=−0.2x+2.2 is the equation of line  from the given graph .

In order to put the equation in y-intercept (y=mx+b) form and determine the equation of a graphed line, you must first determine the slope and y-intercept. The slope is the ratio of the change in y to the change in x.

(-4 , 3 ) and ( 6 ,1 )

these are two points we will use to find the equation of the line

Slope is -0.2

Intercept is 2.2

y=−0.2x+2.2 is the equation of line

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Swimmer is 47 dm away from the sailboat.

The mentioned problem will use cosine trigonometric functions to find the distance between swimmer and sailboat. Assuming the distance between lifeguard and swimmer be x and the distance between lifeguard and sailboat be y.

Taking the triangle between swimmer and lifeguard -

cos theta = base/hypotenuse

cos 32 = x/36.5

x = 0.8×36.5

x = 29.2 dm

Taking the triangle between lifeguard and sailboat -

cos 13 = y/84.7

y = 0.9×84.7

y = 76.23 dm

Therefore, the distance between sailboat and swimmer is y - x

Distance = 76.23 - 29.2

Performing subtraction

Distance = 47.03 dm

Round to nearest tenth

Distance = 47 dm

Thus, the sailboat and swimmer are 47 dm apart.

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Answer:

Step-by-step explanation:

12/x = x/16

x^2 = 192

x = ± √192 = ± 8√3

A fter solving system of equations, we can conclude that, you should buy 60 Polo Shirts, 20 T- Shirts, 120 Rugby Shirts.

Let, x be the number of T-shirts, y be the number of polo shirts and z be the number of rugby shirts

A clothing store and budget $6000 to restock 200 shirts.

So, we get an equation,

x + y + z = 200                      ...................(1)

If you want to have twice as many rugby shirts as polo shirts.

So, we get an equation,

z = 2y                                   ......................(2)

You can buy T-shirts for $12 each, polo shirts for $24 each, and rugby shirts for $36 each.

So, we get an equation,

12x + 24y + 36z = 6000

We rewrite above expression as,

x + 2y + 3z = 500                         ..............(3)

Now we substitute z = 2y, into equations (1) and (3)

x + y + 2y = 200

x + 3y = 200                               ..................(4)

and equation (3) becomes,

x + 2y + 3(2y) = 500

x + 8y = 500                               ...............(5)

After solving equations (4) and (5) we get,

y = 60 and x = 20

Now substitute above value of y in equation z = 2y

z = 2(60)

z = 120

Therefore, after solving system of equations, we can conclude that, you should buy 60 Polo Shirts, 20 T- Shirts, 120 Rugby Shirts.

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Answer:

y=-5x+6

Step-by-step explanation:

the two lines are parallel so they have the same slope and if you put the like in y=mx+b it would be y=-5x+1 so the slope is -5

Then you need to put it into point slope for to figure it out y-y1=m(x-x1)

y-1=-5(x-1) (simplify)

y-1=-5x+5 (add 1 to both sides)

y=-5x+6

Answer: 16 drops

Step-by-step explanation: For every 2 drops is 5 ounces. We can set up an equation such as: 2/5*8/8=16/40. If you divide 40/5 you get 8, and now multiply by 2, you get 16.

Ai) 5575 Swedish kronor      500*11.15

Aii) 312.50 swiss frans      250*1.25

B) £345     407.10/1.18

Hope this helps, have a great day!!

The fraction of the reading assignment done by Tuesday night is 1/2.

Given:

Let the total reading assignment be x.

Fraction of the reading assignment finished by Tori on Monday afternoon = (1/6)x

Fraction of the reading assignment finished by Tori on Tuesday afternoon = (1/3)x

The fraction of the reading assignment done by Tuesday night is,

Total - Fraction of the reading assignment completed by Tori

= [tex]x -(\frac{x}{6} + \frac{x}{3} )[/tex]

= [tex]x -(\frac{x+ 2x}{6} )[/tex]

= [tex]x - \frac{3x}{6}[/tex]

= [tex]x -\frac{x}{2}[/tex]

= [tex]\frac{2x-x}{2}[/tex]

= [tex]\frac{x}{2}[/tex]

So, 1/2 of the reading assignment(x) was done by Tuesday night.

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Answer:

A is Perpendicular

B is Neither

C is Parallel