Alex has 75 buttons. He gives 15 buttons to emma what percent of the button did Alex give to emma? just need help i don't understand what i need to do;-;

Answer:

Step-by-step explanation:

x + 28 + 39 = 180

x + 67 = 180

x = 113

y + 113= 180

y = 67

z + 67 + 64 = 180

z + 131 = 180

z = 49

Answer:

D

Step-by-step explanation:

edg

Answer:

D

Step-by-step explanation:

Answer:

22/44, divide both sides by 22, then you would got 1/2

1/2. This is because 22 is half of 44, so we can simplify it into 1/2.

Answer:

£800

Step-by-step explanation:

Use the percentage formula: NV = m x OV

NV is New Value;

m is Multiplier;

and OV is Old Value.

£640 in the New value, so now we have to convert 20% to a multiplier and find out the Old value.

Make OV the subject of the formula: OV = NV / m

So 20% decrease would mean: 100 - 20 = 80 * 100 = 0.80

Divide 640 (NV) by 0.80 (m) and it will give you:

£800

And it would make sense that the OV is higher, and it matches the statement -> as the NV is the decrease.

Answer: D

Step-by-step explanation:

The larger the denominator gets, the smaller the parts are split, therefore 8/9 is the closest to 1

Answer:

3.35 inches

Step-by-step explanation:

Actual height of statue = 67 feets

Scale used : 1 inch = 20 feets

Let Length of drawing = x

1 inch = 20 feets

x inch = 67 feets

Cross multiply to obtain the length of the drawing in inches

20 * x = 67 * 1

20x = 67

x = 67 / 20

x = 3.35 inches

Hence, length of her drawing is 3. 35 inches

245

Step-by-step explanation:

b

Answer:56

Step-by-step explanation:

Answer:

14x+9y

Step-by-step explanation:

Combine Like terms. 16x-2x=14x

dont forget the 9y

so 14x+9y

Answer:

n= -5

Step-by-step explanation:

Answer:

Step-by-step explanation:

-n is -5

pls mark brainliest

Answer:

[tex] \frac{1}{2} \times 10 \times 8 \\ \\ = 40[/tex]

this is the explanation.

Answer:

24/43

Step-by-step explanation:

2 feet = 24 inches

The answer is 24/43 or 24:43. I can't be simplified.

Answer:

2.36 * 10^13 miles

Step-by-step explanation:

Given that :

Proxima centauri is at a distance of 4.24 light years away from the sun.

Distance in miles of Proxima centauri from the sun ;

1 light year = 5.9 * 10^12 miles

Number of light years from the sun * 5.9 * 10^12

= 4 * (5.9 * 10^12)

= 23.6 * 10^12 miles

= 2.36 * 10^13 miles

The solution is, b. x² = 12(y + 3) equation represents a parabola that has a focus of (0, 0) and a directrix of y = −6

The parabola is a plane curve which is mirror symmetrical and is approximately U-shaped. It fits several superficial different mathematical descriptions.

here, we have,

If the focus is (0,0) and the  directrix  is y=-6, the equation will be found as follows:

Let (x,y) be any point on the parabola. Find the distance between (x,y) and the directrix, then find the distance between (x,y) and the focus. Equate these two distance equations and the simplified equation in x and y is equation of the parabola.

The distance between (x,y) and (0,0) is √(x²+y²)

The distance between (x,y) and the directrix, y=-6 is ly+6l

Equate the two distance expressions and square on both sides

√(x²+y²)=ly+6l

x²+y²=(y+6)²

simplifying and bringing terms together we get:

x²-12y-36=0

make x² the subject:

x²=12y+36

x²=12(y+3)

Hence, Answer :b. x² = 12(y + 3)

learn more on parabola:

https://brainly.com/question/1615961

#SPJ3

complete question:

Which equation represents a parabola that has a focus of (0, 0) and a directrix of y = −6 ?

a. x² = 12y

b. x² = 12(y + 3)

c. x² = −3y

d. x² = −3(y + 3)

Answer:

C

Step-by-step explanation:

Answer:

1st question's answer is the 3rd option

2nd question's answer is the 2nd option

Step-by-step explanation:

Answer:

Scalene

Step-by-step explanation:

Answer:

38°

Step-by-step explanation:

hope this helps :)

Answer:

No, because there is a lot of variability in the earth science book data.

Step-by-step explanation:

I just took the test and the explanation is that the earth book has more pages and more variability so that is why her answer is wrong.

Answer:

No, because there is a lot of variability in the earth science book data.

Step-by-step explanation:

Answer:

Step-by-step explanation:

Probability = favorable outcome / total number of outcomes

5 numbers left and 3 of them are even.

So combined probability is:

Answer:

-4 degrees C

Step-by-step explanation:

-9 + 5 = -4

Answer:

- 45

hope it's helpful ❤❤❤❤

THANK YOU.

Answer:

a ratio is a comparison of two quantities, and it has to do with fractions because a ratio is just a single fraction

Step-by-step explanation:

Answer:

<

Step-by-step explanation:

Hope this helps!

Answer:

Im pretty sure you divide 13 by x

Step-by-step explanation:

Answer:

470 cm³

Step-by-step explanation:

Decompose the prism into two rectangular prism.

Prism 1 will have the following dimensions and volume:

Length = 10 cm

Height = 8 cm

Width = 9 - 5 = 4 cm

Volume = L × W × H

Volume = 10 × 8 × 4 = 320 cm³

Prism 2:

Length = 10 cm

Height = 3 cm

Width = 5 cm

Volume = 10 × 3 × 5 = 150 cm³

✔️Volume of the entire prism = 320 + 150 = 470 cm³

Answer:

Step-by-step explanation:

[tex]r(x) = 2x ^ 2 - 5x +1\\\\ r(x+2) = 2(x+2)^ 2 - 5(x+2) +1\\\\ r(x+2) = 2(x^2+4x+4) - 5x-10+1\\\\ r(x+2) = 2x^2+8x+8 - 5x-9\\\\ r(x+2) = 2x^2+3x-1[/tex]

Answer:

Yea I can help you

was there supposed to be a picture included.

Step-by-step explanation: