Which ratios form a proportion? Select all that apply.

A.
1620=2835


B.
3515=5624


C.
515=3010


D.
1421=728


E.
1218=4060

Answer:

d) x= -15

Step-by-step explanation:

-4x-12=48

1. Add 12 to both sides

-4x-12+12=48+12

2. -4x=60

3. Divide -4 from both sides

Final Answer: x= -15

Answer:

-2

Step-by-step explanation:

1 - 3z ≤ 7

First you subtract 1 from both side, then you should get an answer of 6. After that divided by -3 on both side and you should ended up with a answer of z ≤ -2.

Hope this help!

Answer:

the answer would be 3sqrt85

Step-by-step explanation:

Answer:85

Step-by-step explanation:

x^3 will =to85

Answer:

2, 3, 5, 7 and 11

Step-by-step explanation:

hope this helps :3

Answer:

2, 3, 5, 7, 11

Step-by-step explanation:

They can't be divided by any number except 1

Answer:

Slope=M=y2-y1/X2-X1=

-1 -2 /4-0=

-3/4  =

-0.75

Step-by-step explanation:

Hope this helped!!!!

Answer:

y=(-3/4)+2

Step-by-step explanation:

Hello there! In order to solve this problem we will have to find the slope of the line and then use the point slope formula

Firstly, lets solve for the slope by finding the change in y over the change in x:

slope (m)= [tex]\frac{y2-y1}{x2-x1}[/tex]

We will plug in the values of the points given and find that:

slope (m)= [tex]\frac{-1-2}{4-0}[/tex]

this equals (-3/4)

from here we will use the point slope formula to find for the equation that the line passes through. You can use either point for this step, I will be using A(0,2).

Point-slope equation:

[tex]y-y1=m(x-x1)[/tex]

Plugging in values:

[tex]y-2=(\frac{-3}{4})(x-0)[/tex]

after isolating y we find that the equation is:

[tex]y=\frac{-3}{4} x+2[/tex]

Hope this helps!

-HM

Answer:

What do you think it is, I have an idea but I don't want you to get it wrong!

The tip would be $34.20

Answer:

this should be right

Step-by-step explanation:

angle a is 60 degrees

Answer:

Step-by-step explanation:

Answer:

[tex]\frac{7}{8}[/tex]

Step-by-step explanation:

The slope of a perpendicular line is opposite and reciprocal to the original slope. Flip the fraction and change the sign, and you're all set!

Given:

3.8 - 2.923

To find:

The subtraction.

Solution:

We have,

3.8 - 2.923

It can be written as

3.800 - 2.923

After subtraction, we get

3 . 8 0 0

-2 . 9 2 3

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

0 . 8 7 7

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

So, 3.800 - 2.923 = 0.877.

Therefore, the value of 3.800 - 2.923 is 0.877.

The answer to your question is 8 hope it helps

Answer:8

Step-by-step explanation: 1/4 ÷34

9514 1404 393

Answer:

  9

Step-by-step explanation:

The value of the sum is ...

  (10A +B) +(10B +A) = 102 +10A

  11A +11B = 102 +10A

  A +11B = 102 . . . . . . . subtract 10A

Dividing by 11, we have ...

  A/11 +B = 9 3/11

This tells us A=3, B=9.

__

Check

39 + 93 = 132

Answer:

To make this division work, you multiply the numerator by the reciprocal of the ... Therefore, ((x - 4) / (1 / 2)) / (1 / (x + 4)) = ((x - 4) * 2) * (x + 4) / 1. ... below. (Note that the variables are used to represent individual digits; no ... In the ten's column, we can see that a one must carry in order to get a digit in the hundred's place.

Step-by-step explanation:

Answer:

Step-by-step explanation:

[tex]4y+5-4.2-5y^{2}+z[/tex]

constant terms: 5 and -4.2 equals 0.8

No matching variable terms.

[tex]-5y^{2} + 4y+z+0.8[/tex]

4 total terms

Answer:

first one is 11,150

second one is 8,995

Third one is 21,213

The fourth one is 10.29

The last one is 4158

Step-by-step explanation:

Answer:

If Mary earns 7$ an hour, we need to multiplicate 7$ by the number of hours worked for the entire week so we can get the salary per week.

Step-by-step explanation:

it's correct

Answer:

x=86

Step-by-step explanation:

we know that all the angles in a triangle add up to 180 degrees.

if you add 74+20, you get 94. then, subtract 94 from 180 to get 86! sorry if this is wrong i tried my best T^T

Answer:

they are 30 ft away from the balloon

Step-by-step explanation:

every foot they move back equals one degree higher in the angle ten feet would equal 10 degrees.

Rewrite the formula for the base b₂ will be given as b₂ = 2A / h + b₁.

It is a polygon that has four sides. The sum of the internal angle is 360 degrees. In a trapezium, one pair of opposite sides are parallel.

The area of a trapezoid is calculated using the formula below, where A is the area of the trapezoid, b₁ and b₂ are the bases of the trapezoid, and H is the height of the trapezoid.

Then the area of the trapezoid will be

A = [(b₁ + b₂) / 2] · h

Rewrite the formula to find the base b₂ will be given as,

       A = [(b₁ + b₂) / 2] · h

2A / h = b₁ + b₂

      b₂ = 2A / h + b₁

More about the trapezium link is given below.

https://brainly.com/question/22607187

#SPJ2

Answer:

A

Step-by-step explanation:

The answer is would be B.

Answer:

B. $18.00

Step-by-step explanation:

3 books the same cost.

$18.00*3= $54

$ 54+$1.99= 55.99

Hope this helps

Answer:

6 < k > 13

Step-by-step explanation:

Answer:

Angle 8 = 83

Angle 5 = 180 -83 = 97

Step-by-step explanation:

Check: Just an example to check using Co- interior angles

Angle 2 + Angle 5 =  180 degrees

                83 +97  = 180 degrees

       180 degrees = 180 degrees

Therefore Angle 5 = 97 degrees and Angle 8 = 83 degrees

Answer:

Step-by-step explanation:

Answer:

Cost per game

Step-by-step explanation:

Given

[tex]y = 3x + 1.25[/tex]

Required

What does the slope represent?

First, we need to determine the slope

A general equation is of the form

[tex]y = mx + b[/tex]

Where

[tex]Slope = m[/tex]

By comparing:

[tex]y = mx + b[/tex] to [tex]y = 3x + 1.25[/tex]

[tex]m = 3[/tex]

Hence, the slope is 3

From the question we understands that a certain amount is paid per games.

This amount is represented by the rate or slope.

So:

The slope is the cost per game

Answer: 6.10

Step-by-step explanation: