f(x)=-2x+3 f(3)-f(4)

Give me brainliest if right: 106.95

The total number of toy cars in Enola's collection is 500 if 155 of her toy cars are on the wall, and 69% of her toy cars are in the display case.  

It's the ratio of two integers stated as a fraction of a hundred parts. It is a metric for comparing two sets of data, and it is expressed as a percentage using the percent symbol.

It is given that:

She keeps some in a display case and the rest on the wall. 155 of her toy cars are on the wall, and 69% of her toy cars are in the display case.

Let x be the total number of toy cars in Enola's collection:

69% of x = x - 155

0.69x = x - 155

0.31x = 155

x = 500

Thus, the total number of toy cars in Enola's collection is 500 if 155 of her toy cars are on the wall, and 69% of her toy cars are in the display case.

Learn more about the percentage here:

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Answer:

D: no real solutions

Step-by-step explanation:

Answer:

p = 23

q = 18

Step-by-step explanation:

The four interior angles of a square are all 90° each

 4p - 2 = 90

⇒ 4p = 92

⇒ p = 92 ÷ 4

⇒ p = 23

 5q = 90

⇒ q = 90 ÷ 5

⇒ q = 18

Answer:

p=23; q=18.

Step-by-step explanation:

1) m∠(XWZ)=90, then 4p-2=90 and p=23°;

2) m∠(WZY)=90, then 5q=90 and q=18°.

Hello!! Your answer would be 55''. If the other side is the same length, the this side is 55'' too.

Hope this helps!

Answer:

135!!!

Step-by-step explanation:

Summing all the ingredients to get the total sample size, we applied the formula for obtaining the probability which is

Pr(3) = 0.5

Given Data

Sample Space

Total Sample size = 6

Probability of identifying 3 ingredient used is

Pr(3) = 3/6

Pr(3) = 1/2

Hence the Probability is 0.5

Learn more about probability here:

https://brainly.com/question/25870256

Answer:

1/20

Step-by-step explanation:

From Kahn

Answer:

2/a^7

Step-by-step explanation:

Answer:

68.58m

Step-by-step explanation:

hope it helps!!!

Answer:

I think it is 60°

Step-by-step explanation:

b/c angle of triangle is 180° and when we divide 180° by 3 it will be 60°

Answer:

87.125 is rational

Step-by-step explanation:

it is a rational number because it can be represented as a fraction

Answer:

A: the cost per pund of coffee

Step-by-step explanation:

You need x and y- values. So one would be the pound (x) and the other would be the cost (y)

Answer:

(√3 - x)(√3 + x)

Step-by-step explanation:

Use difference of two square formula:

a² - b² = (a - b)(a + b)

So a² = 3  ⇒  a = √3

and  b² = x²  ⇒  b = x

Therefore, 3 - x² = (√3 - x)(√3 + x)

Answer: 12

Step-by-step explanation:

to find this, divide 4 by 1/3:

4/(1/3) = 4x3 = 12

there are 12 1/3 cup servings in 4 cups

Answer:

Hey there!

Contains 4 cups of trail mix

He wants 1/3 go cup servings

=> 4 ÷ 1/3

=> 4×3/1

=> 12

Therefore, there are 12 of 1/3 in 4 cups

Answer:

40 degrees

Step-by-step explanation:

m<3 = m<4

2x=80

x=40 degrees

Answer:

(-1, -6)

Step-by-step explanation:

If you do rise over run you get the same slope as 8x+7y=-50

Answer:

all rational numbers

Step-by-step explanation:

24+3x=3x+2(3*4) shows that there can only be two possible answer, all integers or no solution. As you can see 2*3*4 is 24, making the answer all rational numbers.

Area of figure = area of trapezoid + area of rectangle

A(rectangle) = 18 x 5 = 90 cm2
A(trapezoid) = (10+18) x (13-5) : 2 = 112 cm2

A(figure) = 112 + 90 = 202 cm2

Answer:

6

Step-by-step explanation:

18 ÷ 3 = 6

3+3+3+3+3+3=18

Answer:

6 per row

Step-by-step explanation:

If Maddie has to spread out a total number of flowers (18) over a set number of sections (3) you would be able to solve this by dividing the total into the sections, which would look something like 18/3.

Answer:

It's the second answer, hope this helps!

Answer:

9

Step-by-step explanation:

hi I'm pretty sure this is really wrong but just kinda guessing

+2 is just a positive 2 so it's just known as 2

2+1+6 = 9

Answer: 9

Step-by-step explanation:because if its 2+1+6 then u get 2 and 6 add thats 8 then your 1 and its 9.

Answer:

c; 54

Step-by-step explanation:

to find the answer you can first add all the books together

this can be represented by

3 + 2 + 2.5 + 1.5

this answer is 9

then multiply it by 6

9 * 6 = 54

is is c

Answer:

10

Step-by-step explanation:

If he runs 50 minutes 50 divided by 5 is 10

Answer:

Your answer is: 18p-5/30

To subtract fractions, find the LCD and then combine.

Step-by-step explanation:

Hope this helped : )

Answer:

Answer:

9c^2 - 30cd + 25d^2

Step-by-step explanation:

(3c - 5d)^2

= (3c - 5d) (3c - 5d)

= [3c * 3c] + [3c * -5d] + [-5d * 3c] + [-5d * -5d]

= 9c^2 - 30cd + 25d^2

Solution:

Let's take the greatest two-digit number as an example.

Proving...

Since the difference between the greatest two-digit number and the product of its digits is a two-digit number, the difference between the other two-digit numbers '10, 11, 12.... 97, 98' and the product of its digits will always be a two-digit number, as the product of its digit is less than the two-digit number.

Hence proved. ✔✔

Step-by-step explanation:

Let the two-digit number is [tex]xy[/tex]

This can be written as:

The difference between the number and product of its digits is:

Rewrite this as below:

d = 10x - xy + y - 10 + 10 =

     x(10 - y) - (10 - y) + 10 =

     (x - 1)(10 - y) + 10

We see that:

The value of d is then:

Answer:

[tex]y=\dfrac{2xz}{(z-x)}[/tex]

Step-by-step explanation:

Given:

[tex]\dfrac{1}{x}=\dfrac{2}{y}+\dfrac{1}{z}[/tex]

[tex]\implies \dfrac{2}{y}=\dfrac{1}{x}-\dfrac{1}{z}[/tex]

[tex]\implies \dfrac{2}{y}=\dfrac{z-x}{xz}[/tex]

[tex]\implies 2xz=y(z-x)[/tex]

[tex]\implies y=\dfrac{2xz}{(z-x)}[/tex]

When x = 5 and z = 10:

[tex]\implies y=\dfrac{2(5)(10)}{(10-5)}[/tex]

[tex]\implies y=\dfrac{100}{5}[/tex]

[tex]\implies y=20[/tex]

Answer:

1 solution

No solution

Infinitely many solutions

1 solution

Step-by-step explanation:

2.3x - 7 = -7

2.3x = 0

x = 0

1 solution

3x = 5 + 3x

0 = 5

No solution

4(10 - x) = 40 - 4x

40 - 4x = 40 - 4x

Infinitely many solutions

-7 + x = -(x + 7)

-7 + x = -x - 7

2x = 0

x = 0

1 solution

Answer:

he is right

Step-by-step explanation:

Answer:

15x^3y+6x^2y^2+9xy^3

Step-by-step explanation:

3xy ( 5x^2 +2xy +3y^2)

Distribute the 3xy to all terms in the parentheses

3xy*5x^2+3xy*2xy+3xy*3y^2

15x^3y+6x^2y^2+9xy^3

Answer:

15[tex]x^{3}[/tex]y + 6[tex]x^{2}[/tex][tex]y^{2}[/tex] + 9x[tex]y^{3}[/tex]

Step-by-step explanation:

multiple everything in the brackets by 3xy

3xy x 5[tex]x^{2}[/tex] = 15[tex]x^{3}[/tex]y

3xy x 2xy = 6[tex]x^{2}[/tex][tex]y^{2}[/tex]

3xy x 3[tex]y^{2}[/tex] = 9x[tex]y^{3}[/tex]

15[tex]x^{3}[/tex]y + 6[tex]x^{2}[/tex][tex]y^{2}[/tex] + 9x[tex]y^{3}[/tex]

Step-by-step explanation:

All we have to do is apply the Pythagorean theorem which states that a²+b²=c²

where c is the hypotenuse of the triangle or the side facing the 90° angle.

Moreover a & b are the other two sides of the triangle.

[tex]11 {}^{2} = {9}^{2} + h {}^{2} [/tex]

where h is the height from the ground

[tex]121 = 81 + {h}^{2} [/tex]

[tex]h {}^{2} = 121 - 81[/tex]

[tex]h {}^{2} = 40[/tex]

[tex]h = \sqrt{40} = 6.324[/tex]

Rounding to the nearest tenth,

[tex]h = 6.3[/tex]

[tex]\begin{cases} x=-5\implies &x+5=0\\ x=3\implies &x-3=0 \end{cases}\qquad \implies \underline{a(x+5)(x-3)~~ = ~~\stackrel{0}{y}} \\\\\\ \stackrel{\textit{we also know that}}{P(0)=-30}\implies \begin{cases} x=0\\ y=-30 \end{cases}\implies a(0+5)(0-3)~~ = ~~-30 \\\\\\ a(5)(-3)=-30\implies -15a=-30\implies a=\cfrac{-30}{-15}\implies \boxed{a=2} \\\\[-0.35em] ~\dotfill\\\\ 2(x+5)(x-3)=y\implies 2(\stackrel{F~O~I~L}{x^2+2x-15})=y\implies \underline{2x^2+4x-30=y}[/tex]

Check the picture below.