Tell whether the ratios form a proportion.
1 to 0.4 and 9 to 3.6

Answers

Answer 1

Answer:

no?  cause one is negative and the other is positive and I'm guessing they both have to be the same

Step-by-step explanation:

3  =  x

x         3

These are fractions btw

Cross multiply:

3 * 3 = x * x

Simplifying

3 * 3 = x * x

Multiply 3 * 3

9 = x * x

Multiply x * x

9 = x2

Solving

9 = x2

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-1x2' to each side of the equation.

9 + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0

9 + -1x2 = 0

Add '-9' to each side of the equation.

9 + -9 + -1x2 = 0 + -9

Combine like terms: 9 + -9 = 0

0 + -1x2 = 0 + -9

-1x2 = 0 + -9

Combine like terms: 0 + -9 = -9

-1x2 = -9

Divide each side by '-1'.

x2 = 9

Simplifying

x2 = 9

Take the square root of each side:

x = {-3, 3}

Answer 2
The answer is 3=x I think

Related Questions

Can anyone please help me with this? You need to find the equation to solve for x, the value of x, and the value of each angle measure for all 5 questions. I will give brainliest

Answers

Answer:

1. a) 3x + 21 = 6x - 60

  b) x = 27

  c) angle measure = 102º

2. a) 12x - 18 = 8x + 10

   b) x = 7

   c) angle measure = 66º

3. a) 7x + 9 + 5x + 3 = 180 (simplified: 12x + 12 = 180)

   b) x = 14

   c) 107º; 73º

4. a) 3x + 10 + 3x -28 = 180 (simplified: 6x -18 = 180)

   b) x = 33

   c) 109º; 71º

5. a) 12x + 15 = 15x

   b) x = 5

   c) 75º

Step-by-step explanation:

1. a) they're the same angle so set them equal to each other: 3x + 21 = 6x - 60

  b) solve from the equation above

      3x + 21 = 6x - 60        subtract 3x from both sides

       21 = 3x - 60                add 60 to both sides

       81 = 3x                        divide both sides by 3

       x = 27

  c) plug back into each equation (they should be the same, but do both just to check)

      3(27) + 21 = 81 +21 = 102º

      6(27) - 60 = 162 - 60 = 102º

2. a) again, they're the same angle measure so set them equal to each other: 12x - 18 = 8x + 10

   b) solve the equation for x

      12x - 18 = 8x + 10            subtract 8x from both sides

       4x - 18 = 10                     add 18 from both sides

       4x = 28                           divide both sides by 4

       x = 7

  c) plug back into each equation (they should be the same, but do both just to check)

      12(7) - 18 = 84 - 18 = 66º

      8(7) + 10 = 56 + 10 = 66º

3.  a) the sum of the two angles is 180º so 7x + 9 + 5x + 3 = 180

         if you want the equation simplified: 12x +12 = 180

     b) solve for x, i will be using the simplified equation

         12x + 12 = 180            subtract 12 from both sides

         12x = 168                    divide both sides by 12

         x = 14            

     c) plug into each equation to get the two angle measures

         7(14) + 9 = 98 + 9 = 107º

         5(14) + 3 = 70 + 3 = 73º

4. a) the sum of the two angles is 180º so 3x + 10 + 3x -28 = 180

       if you want it simplified: 6x -18 = 180

   b) solve for x, i will be using the simplified equation

       6x - 18 = 180                    add 18 to both sides

       6x = 198                           divide both sides by 6

       x = 33

   c) plug into each equation to get the two angle measures

      3(33) + 10 = 99 + 10 = 109º

      3(33) - 28 = 99 - 28 = 71º

5. a) they're the same angle measure so set them equal to each other: 12x + 15 = 15x

   b) solve for x with the equation above

        12x + 15 = 15x                   subtract 12x from both sides

        15 = 3x                              divide both sides by 3

        x = 5

  c) plug back into each equation (they should be the same, but do both just to check)

      12(5) + 15 = 60 + 15 = 75º

      15(5) = 75º    

     

I need questions 12-30 evens on pg 375 and 356!!!!
Explain answers pls

http://assets.pearsonschoolapps.com/asset_mgr/current/201249/ny_ph_hsm2012_te_ch6.pdf

Answers

Answer:

I know you have a problem

Susan has raised $234 by selling 18 equally priced wreaths for the band fund-raiser. Which of the following equations can be used to find the price, y, of each wreath?

y − 18 = 234
y + 18 = 234
y ÷ 18 = 234
18y = 234

Answers

Answer:

Last one

Step-by-step explanation:

It shows that each wreath, y, is worth 18 dollars and that the total price is 234

Answer:

uhh i think y divided by 18 = 234 . . i might be wrong

Step-by-step explanation:

PLEASE HELP ME WITH MY MATH ;-; if you help I will give you 5 stars, a thanks, and a brainliest

Answers

Answer:

138 is an exterior angle

58 and x is interior

add

x is 80

Step-by-step explanation:

please please please help!!!! all i need is it know what points to plot the two lines on, thank you :))

Answers

Answer:

Hannah's line should start at 220 and Brandon's at 340 and should go down each hour by 30 and 50 respectively.

Answer:

220 330

Step-by-step explanation:

My sister is a self centered brat and she is always trying to get attention. and she is a really good liar so she tricks my mom and dad into thinking that everything is me or my brother's fault. It took me a long time to realize how mean she is to me, but I don't know what to do about her please help me. 15 points

Answers

Answer:

Set up camras get ur proof

Step-by-step explanation:

Personally I think she you need to uno get rid of her

HELPPPPPPPPPPPPPASAPPPPPPPPPP

Answers

Answer:

slope is -4/1 so

Step-by-step explanation:

Answer:

Y=-4x+4

Step-by-step explanation:

I was really good at it two years ago this should be correct, if not sry.

I will award branliest

Translate from binary to decimal:

a) 11₂
b) 111₂

Answers

the answer is

1) 3

2) 7

since each place value is different from base 10
Here’s the answer:
a) 3
b) 7

Please answer! I will mark Brainlist!

Answers

Answer:

1. -3

2. -0 i think

3. 4

Step-by-step explanation:

sorry if this is wrong good luck!!<3

Find the equation for the area, A, of the rectangle with a length of n-5 and a width of n-1.
A A=n(n-1)+5(n-1)
B n^2-5n+5
C n^2-6n+5
D n^2+5

Answers

Answer:

C. [tex]n^{2}[/tex]-6n+5

Step-by-step explanation:

Area of a rectangle =l x w

A=(n-5)(n-1)

Use distributive property

[tex]n^{2}[/tex]-n-5n+5

Combine like terms

[tex]n^{2}[/tex]-6n+5

the answer to this would be C

I'LL GIVE BRAINLIEST:

Answers

Answer:

120 square cm

Step-by-step explanation:

Just times 40 by 3 and that would look like 1:3 (because 40 is the one value)

40:120

1:3

Answer:

c

Step-by-step explanation:

40*3 = 120

Use >,<, or = to complete the problem. 0.75 _ 3/4

Answers

Answer:

= because 3 quarters are equal to 75 cents

Answer:

0.75 = 3/4

Step-by-step explanation:

you can view this as 4 quarters makes 1 dollar, every quarter is equal to 25c

1/4 quarters = 25

2/4 quarters = 50

3/4 quarters = 75

4/4 quarters = 100

0.75 = 3/4

Hello! Who can answer this?

Answers

Answer:

if it is a fraction, it is 5/4. If it is a decimal, it is 1.25

Step-by-step explanation:

15/12 = 5/4 = 1.25

Answer:

1.25

Step-by-step explanation:

How many minutes will it take to make and pack an order for 36 parts? Show your work.

Answers

I need to see the rest of the problem in order to solve it.
srry i just need points

Explain the difference between finding the volume of this right rectangular prism with whole unit cubes and with 1/2 -unit cubes.
Pls do not give me a bad answer

Answers

Finding volume by multiplying

Finding volume with unit cubes

you take base one and mulitiply it by the number its beside. then multiply by the height

The difference between finding the volume of this right rectangular prism with whole unit cubes

When using small cubes to measure volume can cubes of different sizes be used?

A unit cube with side lengths of 1 centimeter has a volume of 1 cubic centimeter. A unit cube with side lengths of 1 inch has a volume of 1 cubic inch.

What is the volume of the rectangular prism?

To find the volume of a rectangular prism, multiply its 3 dimensions: length x width x height. The volume is expressed in unit cubes .

To learn more about  unit cubes, refer

https://brainly.com/question/22747437

#SPJ2

use a unit multiplier to convert 0.95 liters to milliliters.

Answers

Answer:

950 milliliters

Step-by-step explanation:

0.1 liter = 100 milliliters

the one moved up 3 place values

so that means 0.95 x 1000 = 950

Answer:

950 milliliters

Step-by-step explanation:

0.1 liters = 100 milliliters

0.95 x 1000 = 950 milliliters

Help with this ill give brainliest

Answers

Answer:

1. 678.6

2. 1131

3. 490.1

4. 1809.6

Step-by-step explanation:

A=2πrh+2πr2

Answer:

1.  SA = 216π cm² ≈ 678.24cm²

2. SA = 360π ft²≈ 1130.40ft²

3. SA = 156π yd² ≈ 489.84yd²

4. SA = 576π m² ≈ 1808.64 m²

Step-by-step explanation:

SA of a cylinder = 2πrh + 2πr²

1.  r = diameter ÷ 2

  r = 12/2 = 6

   SA = 2π(6)(12) + 2π(6)²

   SA = 144π + 72π

   SA = 216π ≈ 678.24

2. r = 19/2 = 9

   SA = 2π(9)(11) + 2π(9)²

   SA = 198π + 162π

   SA = 360π ≈ 1130.40

3.  SA = 2π(6)(7) + 2π(6)²

    SA = 84π + 72π

    SA = 156π ≈ 489.84

4. r = 24/2 = 12

    SA = 2π(12)(12) + 2π(12)²

    SA = 288π + 288π

    SA = 576π ≈ 1808.64

Solve due soon. I will give brainliest

Answers

Answer:

m<1=145°

m<2=35°

m<3=35°

Step-by-step explanation:

m<1=145°

m<2=35°

m<3=35°

Step-by-step explanation:

hope it will help and support you ☺

What does it mean when I put a line underneath my inequality symbol like ≤ or ≥?

Group of answer choices

equal to

not equal to

less than

greater than

Answers

it means equal to
if you need more explanation let me know!
les than or equal to and greater than or equal to. the line underneath is equal to and the signs are either great or less

Determine the slope and y-intercept from the following equation y=3/2x+3
A slope:5 y-intercept(0,3)
B slope: 3/2 y-intercept (0,3)
C slope: 1/5 y-intercept: (0,5)
D slope: 4 y-intercept: (0,3/2)

Answers

B bc m/slope is 3/2 and b/y intercept is (0,3)
The answer is B. because y=mx+b 'm' is the slope and 'b' is the y-intercept

Simplify & Explain

4a(6) + 3a

Answers

You multiply 4a x 6 which give you 24a. Then add 3a to 24 a which gives you 27a.
The answer would be 27a,
4a(6)+3a
= 24a+3a
=27a

Marcella is switching to a new storage locker.

Which locker has the larger volume? By how many cubic feet?

Answers

Answer:

54 cubic feet

Step-by-step explanation:

Answer:

Newer locker by 1 cubic foot

Step-by-step explanation:

3 · 3 · 6 = 54 ft³

2.5 · 5.5 · 4 = 55 ft³

55 ft³ - 54 ft³ = 1 ft³

Emma’s kitten, snowball, weighed 1250 grams at his last visit to the veterinarian's office. If snowball weighs 1500 grams now, what is the percent increase in the kitten’s weight?

Answers

1500-1250=250 that’s the answer the kitty increased by 250grams

WILL GIVE BRAINLIEST BUT PLEASE GIVE AN EXPLAINATION
Identify the constant of variation if y =12 when x = 6, given that y varies directly with x. Then write the equation of variation.

Answers

12/6 = 2
constant variation is 2
y = 2x
U literally divide the numbers then it said given with an “x”

So the answer would be y=2x

Because then the opposing variable will recede into the part of the questioned variable

It is like the slope-intercept form!

117+e=186
e= ?

does anyone know what e is?

Answers

Answer:

69

Step-by-step explanation:

answer is 69

This is because of you subtract 186-117 it equals 69. To check you add 177+69 this would equal 186

–8 p + 4 u + 6, when p = 9 and u = 3
Ok at this point I'm double checking all of my answers lol

Answers

Answer:

-54

Step-by-step explanation:

-72+12+6

The answer is -54 it’s work out can I get a Brainly please

Evaluate the equation. f- 11 = 14 2/7 A. f=25 B. f= 25 2/7 C. f=26 D. f= 26 2/7 I WILL GIVE 100 POINTS

Answers

Answer:

if i had to chose i think it be (B)

Step-by-step explanation:

Answer:

it's D

Step-by-step explanation:

Help please, I answered the fist one but that’s incorrect

Answers

Answer:

the second choice

Step-by-step explanation:

one negative number can cause the answer to be negative

Remember (with multiplication or division):

two positives make a positive

two negatives make a positive

two different signs makes a negative

it’s the second one! hope this helps!

HELP ME DO MY MATH PLEASE

Answers

Answer:

Step-by-step explanation:

1. 9/12 and 5/12

2. 80

When rolling two number cubes
simultaneously, what is the probability of rolling
a 1 on one cube and a 6 on the other? Write
your answer as a fraction in lowest terms.

(Don’t answer if you don’t know, thanks.)

A. 1/12
B. 1/36
C. 1/3
D. 1/2

Answers

B. 1/36 for all the possible chances
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