Please help me.

In a group of 45 students at a school, all students must study at least one science. Physics is compulsory, but students may also opt to study chemistry or biology or both. 9 students take all three sciences. 24 take both physics and biology (with or without chemistry). 12 students take only physics. How many are studying chemistry and physics but not biology?

Answer:

39

Step-by-step explanation:

5x-20=2x+10 (opposite sides of parallelogram are equal)

5x-2x=10+20

3x=30

x=30/3

x=10

Now putting the value of x in 4x-1, we get

(4×10)-1

= 40-1

= 39

Given :

Rent-A-Ride charges $55.00 per day with unlimited miles. The cost of renting a similar vehicle at We Got Wheels is $38.00 per day plus $0.20 per mile.

To Find :

For what number of miles is the cost at Rent-A-Ride less than the cost at We Got Wheels.

Solution :

Let, after x miles Rent-A-Ride charges is less than the cost at We Got Wheels.

Price at Got Wheels > Price at Rent-A-Ride

38 + 0.20x > 50

0.20x > 12

x > 60

Therefore, after 60 days cost at Rent-A-Ride less than the cost at We Got Wheels.

Hence, this is the required solution.

Answer:

11: 12/18 12: 4/16 13: A: 2/8 B: 6/8 C: 2/8

Step-by-step explanation:

Im pretty sure those are

The answer would be 35 and for supplement it would be 125

The given function, f(x) = x, and the function with an input of f(x - 3), which is a transformation of the function f(x), moving it three places to the right, gives the points on the graph of the function as the option;

(negative 1, negative 4), (0, negative 3), (3, 0)

The transformation of a function involves moving the curve or line that represents the function either left, right, down, or up, reflect the graph or compress or expand the curve of the graph of the function.

The given graph is for the function is f(x) = x, the required graph is the graph of the function, f(x - 3), which is evaluated as follows;

Given f(x) = x, we have, f(x - 3) = x - 3

The table of values for both functions is presented as follows:

x;             -4,  -3, -2,  -1,   0,  [tex]{}[/tex]1,   2,   3,   4,   5

f(x)       [tex]{}[/tex]    -4,  -3, -2,  -1,   0,  1,   2,   3,   4,   5

f(x - 3)[tex]{}[/tex]      -7,  -6, -5, -4,  -3, -2, -1,    0,    1,   2

From the above table of values, the points on the function, f(x - 3) are; (-1, -4), (0, -3), (3, 0)

The option which gives the points on the graph that shows the function f(x) with an output of f(x - 3) is therefore;

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Answer: b

Step-by-step explanation:

got it right on edge

Answer: a negative integer, rational number, and real number

Step-by-step explanation:

I don’t know exactly what you’re asking but here you go

Answer:

4:1 40:100 I'm not 100% sure but yea

Answer: x=12

Step-by-step explanation: because I’m smart and in middle school

Answer: False

Step-by-step explanation:

Hope this helps

Answer:

A'(1,1) , B'(5,3), C'(2,5)

Explanation:

when you reflect anything over the line y = x, that is the same thing as taking the inverse(you swap the x and y values)

Answer:

[tex]\Large \boxed{\sf \bf 2x^2-12x+10}[/tex]

Step-by-step explanation:

Hello,

As 1 and 5 are roots we can write, with a real number, the quadratic equation as

a(x-1)(x-5)

and as the leading coefficient is 2 then a = 2

It comes

[tex]2(x-1)(x-5)=2(x^2-6x+5)=2x^2-12x+10[/tex]

Thanks

The quadratic equation will be 2x²-12x+1=0.

Quadratic equation is a polynomial with a degree of 2 or the maximum power of the variable is 2 in quadratic equations. It has two solutions as its maximum power is 2.

Given that the roots of the quadratic equation are 1 and 5 and the leading coefficient is 2.

The equation will be written as,

Quadratic equation = 2( x - 1 ) ( x - 1 )

Quadratic equation = 2 ( x² + 4x - 5)

Quadratic equation  = 2x² + 8x - 10

Therefore, the quadratic equation will be 2x²-12x+1=0.

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Answer:

I am pretty sure it is 72, sorry if i'm wrong:)

Step-by-step explanation:

Answer:

y=2x-1/2

Step-by-step explanation:

that's the correct anwsers

Answer:

X=20

Y=85

Step-by-step explanation:

6x-25=4x+15

2x=40

x=20

6(20)-25

120-25

95

360-190

170

2y=170

y=85

Answer:

greater than

Step-by-step explanation:

Answer:

The fraction of the entire mail each person address = 1/8

Step-by-step explanation:

Given that:

number of people addressing envelopes = 6

If they gave out 3/4 of an entire mailing address.

Then, the amount of mailing not addressed is:

= 1 - 3/4

= [tex]\dfrac{4-3}{4}[/tex]

= 1/4

If 6 people shared 3/4 of an entire mailing to address evenly.

Then: each person gets:

[tex]=\dfrac{3}{4} \div 6[/tex]

[tex]=\dfrac{3}{4} \times \dfrac{1}{ 6}[/tex]

= 1/8

The fraction of the entire mail each person address = 1/8

Answer:

-2b+4

Step-by-step explanation:

we are multiplying by a negative 1 in the expression.

-1(2b-4)

-2b+4

*negative multiplied by a negative makes a positive

Hope this helps!

The right equation of the red line will be f(x)=y-4 if the equation of the black line is f(x)=y

The equation is like a relationship between variables.

A variable is anything which have a value.

If we see the points of red line and the lack line we can see the value of x in black line is 4 greater than red line so the equation will be

f(x)=y-4 for the red line for the given equation of the lack line which is f(x)=y

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Answer:

-2

Step-by-step explanation:

m=[tex]\frac{y2-y1}{x2-x1}[/tex]

Answer:

193430

Step-by-step explanation:

Hi! I believe your answer is 193,430 because, well, 1 + 193,429 = 193,430. I hope this helps you! Good luck and have a great day. ❤️✨

Answer:

pretty sure he has 5 quarters

Step-by-step explanation:

16 divided by 3 = 5

Answer:

169/24 or 7 1/24

Step-by-step explanation:

Answer:

10.5

Step-by-step explanation:

1. 40 x 0.35 (14)

2. 70x0.35 (24.5)

3. 24.5-14 (10.5)

Answer

its $24.50

Step-by-step explanation:

I multiplied $0.35 and 70 pencils  

Answer:

Step-by-step explanation:

The answer (y intercept) occurs when x = 0

The answer is -2

-5y = 10

y = 10/-5

y = - 2

Answer:

(0, -2)

Step-by-step explanation:

to find the y-intercept u need to put it into the slope intercept form.

first you move the X to the other side of the equation and get -5y = -2x + 10

then u divide -5 on each side and get y = 2/5 x -2

in y=mx+b and,b is the y intercept

so the y intercept is -2

Answer:

Each pen cost 0.18 cents

Step-by-step explanation:

3.24/18=0.18