Which ratio is equal to 27 : 81?

Answer:

okay so the first one can be any of teh five

teh second one is onyl 4 of them bc u've already used one

so we do : 4*5 which is 20

Answer:

11cm

Step-by-step explanation:

5+6=11

hopefully this helps :)

Answer:

the answer would be 35cm

Step-by-step explanation:

7+6+8+5+15=35

Answer:

220 i think but im not sure

Step-by-step explanation:

Answer:

the third one -1/2

Step-by-step explanation:

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Answer:

1

Step-by-step explanation:

m=y2-y1/x2-x1

(-2)-2=(-4)

3-7=(-4)

-4/-4=1

hope this helps :3

if it did pls mark brainliest

Answer:

i feel like you need 76 from the 87

Step-by-step explanation:

Answer:

7/10

Step-by-step explanation:

hope this helpss!!!!!

Bev writes three numbers on a piece of paper.

Which set of numbers could Bey have written?

14, 18, 16

19, 12, 15

12, 17, 14

10, 15, 19

12, 17, 14

14, 18, 16  = 14(even), 18(even), 16(even) = cannot be the correct answer

19, 12, 15  = 19(odd), 12(even), 15(odd) = cannot be the correct answer

12, 17, 14  = 12(even), 17(odd), 14(even) = is the correct answer

10, 15, 19  = 10(even), 15(odd), 19(odd) = cannot be the correct answer

Answer:

(-6, 0)

(-5, 1)

(-1, -2)

General Formulas and Concepts:

Step-by-step explanation:

Step 1: Define

x + 3y > -8

(-6, 0) ?

(-5, 1) ?

(-16, 2) ?

(-1, -2) ?

(0, -3) ?

Step 2: Check 1

Step 3: Check 2

Step 4: Check 3

Step 5: Check 4

Step 6: Check 5

Answer:

2 tasks because you look and it says there are  8 people and 4 for each task

Step-by-step explanation:

hope this helps

Answer: Small box = $5

Large box = $14

Step-by-step explanation:

Let the cost of a small box be a

Let the cost of a large box be b

The scenario in the question can be modelled into an equation as:

3a + b = 29 ....... equation i

3a + 4b = 71 ....... equation ii

Subtract equation ii from equation I

-3b = -42

b = 42/3

b = 14

Cost of large box = $14

We put the value of b into equation I

3a + b = $29

3a + $14 = $29

3a = $29 - $14

3a = $15

a = $15/3

a = $5

Cost of small box = $5

Answer:

484 : 1

Step-by-step explanation:

We can write white blood cells to:

22^5 = 22 × 22 × 22 × 22 × 22

We can write red blood cells to:

22³ = 22 × 22 × 22

Thus, white : red equals

22 (5 times) : 22 (3 times)

22² : 22^0 = 484 : 1

I hope this helps you :)

The required ratio of white blood cells to red blood cells is 1:484.

The ratio can be defined as the proportion of the fraction of one quantity towards others. e.g.- water in milk.

Here,
A cubic millimeter of blood contains 22³, white blood cells, and 22⁵ red blood cells.

The ratio of white to red blood cell is given as,
Ratio = 22³/22⁵
Ratio = 1 / 484

Thus, the required ratio of white blood cells to red blood cells is 1:484.

Learn more about ratios here:

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Answer: x = 40

have: ∠A + ∠B + ∠C + ∠D = 180°

⇔ x + 6 + x + 4 + x +10 + x = 180°

⇔ 4x + 20 = 180

⇔ x = (180 - 20)/4

⇔ x = 160/4 = 40

Step-by-step explanation:

Answer:

a) See attachment

b) P has coordinates of (5,7)

Step-by-step explanation:

Answer:

The slope is -3

Step-by-step explanation:

Find 2 points (-2,3) (-1,0) are 2.

Next subtract y 1 by y 2  in this example, 3-0 which equals 3

After that, subtract x 1 and x 2. In this example, -2-(-1) which equals -1.

Now dive y over x.  3/-1 or -3.

So the slope is -3.

Answer:

1

Step-by-step explanation:

THAT FUNNY

Answer:

1

Step-by-step explanation:

Answer:

10 i believe

Step-by-step explanation:

Answer:

10 miles / 1 hour

0.1 hours / 1 mile

-7 - -4 = -3

Hope this helps

Answer:

288 hours

Step-by-step explanation:

So you have 24 per month. so month can be represented by x.

24x= y

Y is the amount of hours.

One year is 12 months. so plug 12 into x

24(12) =y

y= 288

Answer:

x = - 6.22 or - 56/9

Step-by-step explanation:

Step 1:

34 + 12x = 3x - 22             Equation

Step 2:

12x = 3x - 56            Subtract 34 on both sides

Step 3:

9x = - 56          Subtract 3x on both sides

Step 4:

x = - 56 ÷ 9           Divide

Answer:

x = - 6.22

Hope This Helps :)

Answer:

see explanation

Step-by-step explanation:

Since the triangles are congruent then corresponding sides are congruent, then

CA = NE , that is

4x + 3 = 11 ( subtract 3 from both sides )

4x = 8 ( divide both sides by 4 )

x = 2

----------------------------------------

AR = EW, that is

4y - 12 = 10 ( add 12 to both sides )

4y = 22 ( divide both sides by 4 )

y = 5.5

-------------------------------------------

NW = x + y = 2 + 5.5 = 7.5

CR = NW = 7.5

Answer:

103 students live 1 mile away from the school.

Step-by-step explanation:

First dicide what the problem is really asking you then you end up getting divisoin them divide 515/3.

Answer:

Step-by-step explanation:

For club 1 - 2 book

For club 2 - 4 books

Club 1 has a $40 fee + 2 books = $60 in total

Club 2 has a $0 fee + 4 book = $60 in total

I'm pretty sure I'm right

Answer:

There would have to be 2 books purchased from the first club. Then, there would have to be 4 books purchased from the second club.

Step-by-step explanation:

1st club.  (cost of club) 40$ + (cost of 2 books) 20$ = 60$.

2nd club. (cost of books) 15$ x  (how many books) 4 = 60$

Answer:

Step-by-step explanation:

4x - 9 = 35                   Add 9 to both sides

4x - 9 +9 = 35 + 9        Combine like terms

4x = 44                         Divide both sides by 4

4x/4 = 44/4                  Complete the division

x = 11

Answer:

9

Step-by-step explanation:

a normal dice is 6 sides

half of 18 is 9

50% for odd and even

Answer:

9 times

Step-by-step explanation:

Because you have an equal chance of rolling an odd or even number on the die. So half of 18 is 9.

Have a great day, would love it if you would mark me brainliest!

Answer x= 18 y=-39

Step-by-step explanation:

Answer:

x = ± [tex]\sqrt{\frac{a^2b^2-a^2y^2}{b^2} }[/tex]

Step-by-step explanation:

Given

[tex]\frac{x^2}{a^2}[/tex] + [tex]\frac{y^2}{b^2}[/tex] = 1

Multiply through by a²b² to clear the fractions

b²x² + a²y² = a²b² ( subtract a²y² from both sides )

b²x² = a²b² - a²y² ( divide both sides by b² )

x² = [tex]\frac{a^2b^2-a^2y^2}{b^2}[/tex] ( take the square root of both sides )

x = ± [tex]\sqrt{\frac{a^2b^2-a^2y^2}{b^2} }[/tex]

In formula x²/a²+y²/b²=1

Value of  x as subject, x = ± [a√(b² - y²)]/b

Equations are mathematical statements containing two algebraic expressions on both sides of an 'equal to (=)' sign. It shows the relationship of equality between the expression written on the left side with the expression written on the right side.

Given equation,

x²/a² + y²/b² = 1

moving y²/b² to right side

x²/a² = 1 - y²/b²

multiplying a² on both sides

a². x²/a² = a². 1 - a². y²/b²

Simplifying

x² = a² - a²y²/b²

x = ± √(a² - a²y²/b²)

x = ± a√(1 - y²/b²)

x = ± [a√(b² - y²)]/b

Hence, value of x = ±[a√(b² - y²)]/b in formula x²/a² + y²/b² = 1

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Answer:

30

Step-by-step explanation:

Radius is half of the diameter.

Answer:

6π

Step-by-step explanation:

Answer:

24

Step-by-step explanation:

no explanation, I'm very sorry!