how to solve proportions ​

Answers

Answer 1

Answer:

Ratios and Proportions - Proportions - In Depth. A proportion is simply a statement that two ratios are equal. It can be written in two ways: as two equal fractions a/b = c/d; or using a colon, a:b = c:d. The following proportion is read as "twenty is to twenty-five as four is to five."

Related Questions

which is bigger 5.8 or 5.5

Answers

Answer:

5.8 is bigger

Step-by-step explanation:

Answer:

5.8

Step-by-step explanation:

Since they both start with 5, you look at the next number. Which ever number is bigger is the greater number.

What is the equation of the line that passes through the point (6,-5)

Answers

Answer:

y= -3/2x + 4

Step-by-step explanation:

hope this helps :)

I need help understand

Answers

Answer: -18

2 1/4 = 9/4

9/4×-8/1

9×-8=-72

4×1=4

-72/4=-18

-18

I hope this helps:

0.5a - 1.96
a=17, b=3
0.5a - 1.9b =
(Type an integer or a decimal.)

Answers

Answer:

2.8

Step-by-step explanation:

0.5a - 1.9b

~Substitute

0.5(17) - 1.9(3)

~Simplify

8.5 - 5.7

~Subtract

2.8

Best of Luck!

Look at the point P on the number line.
Which number lines have a point that is equal to point
P? Check all that apply.
р

Answers

Answer:

the answer is A and C

Step-by-step explanation:

yw

I need help asap this is kind of confusing ​

Answers

Your answer would be—> 15

If you are still struggling with this stuff I recommend the app or website called Math-way!!

Answer:

your answer should be 15

Step-by-step explanation:

[tex]8^{2} - (5+2)^{2} \\8^{2} - (7)^{2}\\(8 * 8) - (7 * 7)\\64 - 49\\15[/tex]

I am a two-digit number. I have a three in the ones place. I am less than 16.

What number am I?

Answers

Answer:

13

Step-by-step explanation:

It is a two digit number that is less than 16. That means it's either 10,11,12,13,14 or 15. 13 is the only number with a three in the ones place.

I'LL GIVE BRAINLIEST TO WHOEVER ANSWERS THE QUESTION CORRECTLY!!!!
Is the following statement true or false?
The triangle proportionality theorem only applies to right triangles.

A.) False
B.) True

Answers

I think it is false

I'm not sure if this is correct

PLEASE ANSWER QUICK!!!

Answers

Answer:

7.2 or 36/5

Step-by-step explanation:

please help i need this asap

Answers

It the punquation of ratio b

Answer:

Step 1

Step-by-step explanation:

He didn't distribute the 5 to the 3 inside the parentheses in the first term, or the 2 to the 2 in parentheses in the second term. If he had distributed right, the equation would be 10x-15+14x+4-23

Identify the slope and y-intercept. If the equation is in standard form, you may need to switch it to slope-intercept form. Sketch the graph of each line.
5x + 4y = 4

Answers

Answer:

Slope= -5/4

Y-intercept= 1

Step-by-step explanation:

First put into slope-intercept form, which would get y= -5/4x+1.

Then identify what's what, with the formula y=mx+b, where m is the slope and b is the y intercept. Using that you can see that -5/4 is the slope and 1 is the y.

Solve the system of equations: *

4x +2y = 24
x + y = 6

One solution: (0,6)
One solution: (6,0)
No solution
Infinite Solutions

Answers

Answer:

One solution: (6,0)

Step-by-step explanation:

4(6)+2(0)=24

6+0=6

Do y’all know the answer to this !?

Answers

Answer:

Step-by-step explanation:

set jk and kl equal to each other bc they are the same length (we know this bc of the midpoint)

3x - 1 = 2x + 8

x = 9

substitute 9 in an equation

2(9) = 8 = KL

18 + 8

26 = KL

since KL is the same length as JK we can just multiply 26 * 2

JL = 52

hope this helps <3

3x - 1 = 2x + 8
x = 9

3x - 1 + 2x + 8
5x + 7
5(9) + 7
45 + 7
52

3(9) - 1 + 2(9) + 8
27 - 1 + 18 + 8
26 + 26
52

JL = 52

what is 3a + 2b - 6c

Answers

Answer:

Step-by-step explanation:

a = 3

b = 2

c = 12

3a+2b-6c

3(3)+2(2)-6(12)

-59?

Evaluate x + 3y when x = 4 and y = 5
*Please show how you got your answer*

Answers

Answer:

19

Step-by-step explanation:

x + 3y

4 + 3 (5)

4 + 15

=19

For the following ordered pairs is the X value positive or negative?
(-2, 1)
(3, -4)
(-4, 6)
(1, -3)

Answers

(-2, 1) x is negative
(3, -4) x is positive
(-4, 6) x is negative
(1, -3) x is positive
hope this helps!

A train travel 20 miles in 15 minutes 40 miles in 30 minutes and 60 miles in 45 minutes which equation represents the speed of the train in miles per hour

Answers

every 20 miles it went 5 minutes slower

Answer:

y = 80x

Step-by-step explanation:

In 30 minutes the train went 40 ml so in an hr the train would be at 80 ml

A tree is 4. feet tall. It is expected to grow by 1 feet per year.
At this growth rate, how many years will it take for the tree to have a height greater than 40 feet? Enter the answer in the box.
years

Answers

Answer:

37 years

Step-by-step explanation:

Answer:

36 years

Step-by-step explanation:

it would take 36 years to reach the height of 40 feet. I know this because it is already 4 feet and needs to grow 36 feet and if it is growing at a rate of 1 foot per year then it would take 36 years

help please!!! will give brainliest!!

Answers

Answer:

try one or three

Step-by-step explanation:

5/6 or 5/9

Answer:

Step-by-step explanation:

It’s A

please I BEG YOU! Find the ordered pair (x,y) if x+y=(5-x)+(5-y), x-y=(x-1)+(y-1).

Answers

Answer:

x=4, y=1

I think its that

Step-by-step explanation:


[tex]y - 2x = 7[/tex]
how do i solve this?​

Answers

what is the question looking for? X or y?

Please answer all or what you can do <3

Answers

Answer:

+150

-15

-75

+35

-24.75

Hope this helps!!

Answer:

a. +$150

b. -15 yards

c.+35 degrees

e. -$24.75

I hope this helps:

if the gas station has 80 customers on Tuesday, how many customers can be predicted to get a Dr.pepper?

Answers

Answer:

12

Step-by-step explanation:

the captain the chief mate the chief engineer walk around the deck of the ship it takes 4 minutes to the captain to circle the deck of the ship chief mate takes 5 minutes chief engineer takes 6 minutes how many minutes will they meet again at starting point

Answers

Answer:

60 minutes

Step-by-step explanation:

Step 1

We Find and list multiples of each number of minutes that each person walked around the deck until the first common multiple is found. This is the lowest common multiple.

Multiples of 4:

4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64, 68

Multiples of 5:

5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70

Multiples of 6:

6, 12, 18, 24, 30, 36, 42, 48, 54, 60, 66, 72

Therefore,

LCM(4, 5, 6) = 60

They would meet again at starting point after 60 minutes

Let f(x)=e^x and g(x)=x+6. What is the domain and range of (GoF) (x)?

Answers

Answer:

Domain: Al real values

Range: All real numbers

Step-by-step explanation:

Let f(x)=e^x and g(x)=x+6. What is the domain and range of (GoF) (x)?

Given the functions'

f(x)=e^x and g(x)=x+6.

gof(x) = g(f(x))

g(f(x)) = g(e^x)

Substitute x with e^x in g(x) as shown:

g(f(x)) = e^x + 6

The domain s the input value of x for which the function exists. Accordinf to the expression, x exists on all real values. Since x exists on all real values, hence the output f(x) also exists on all real values

y = (x – 4)² - 4
Standard form

Answers

Answer:

y=x to the second power -8x+12

Step-by-step explanation:

Answer:

x²-4²-4

the ans

Step-by-step explanation:

this is ans

12-(m-3)=4
solve the equations

Answers

Answer: m = 11

Step-by-step explanation:

12 - (m - 3) = 4

Distributive property

12 - m + 3 = 4

Combine like terms

-m + 15 = 4

Subtract both sides by 15

-m = -11

Divide both sides by -1

m = 11

Joe is 3 years less than twice as old as Sara. The sum of the ages of Joe and Sara is 42. If x represents Sara's age,

Answers

Answer:

Sara or x=15, Joe=27

Step-by-step explanation:

Using J to represent Joe and S to represent Sara

J=2S-3

J+S=42 or J=42-S

Substitute for J:

42-S=2S-3

3S=45

S=15

J=2(15)-3 = 27

help pls due in 5 minutes

Answers

Answer:

the answer to this is 7 7/10

Answer:

4th option

Step-by-step explanation:

[tex]5\frac{1}{2}*1 \frac{2}{5}=\frac{11}{2} *\frac{7}{5} =\frac{77}{10}=7\frac{7}{10}[/tex]

Anyone know SLOPE? because I need help.

Answers

Answer:

4

Step-by-step explanation:

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