Which ratio is equal to 15:20?
a: 5:10
b: 18:25
c:21:28
d: 24:30

Answer:

what

Step-by-step explanation:

Answer: funny question

Step-by-step explanation:

4,237 white game consoles and 952

Step-by-step explanation:

First we solve it.

I'll use substitution.

In the first equation y equals -2x+2 so we can apply that to the second equation

2y + 4x = 4

2(-2x+2) + 4x = 4

distribute

-4x+4+4x=4

simplify

4=4

To figure out how many solutions it has:

•If both side of the equal sign are exactly the same: Infinitely many

ex: 6x=6x

•If both sides of the equal sign do not match when completely simplified: No solutions

ex: 3x=-5x

•If it creates an equation: 1 solution

ex: x=3+2y

Since both sides of the equal sign are 4, we have infinitely many solutions.

Hope this helps! If you have any questions on how I got my answer feel free to ask. Stay safe!

Answer:

The measure of the acute angle is 18.4°

Step-by-step explanation:

The angle between a line of equation y = m x + b and the positive part of the x-axis is Ф = [tex]tan^{-1}[/tex](m), which means tan Ф = m, where m is the slope of the line

Let us use this rule to solve the question

∵ A line of equation y = [tex]\frac{1}{3}[/tex] x + 4 makes with a horizontal line an acute ∠

→ Compare the equation of the line by the form of the equation above

∴ m = [tex]\frac{1}{3}[/tex]

→ Assume that the acute angle is Ф

∴ The acute angle between the line and the horizontal line is Ф

→ By using the rule above

∵ tan Ф = m

∴ tan Ф = [tex]\frac{1}{3}[/tex]

→ Use [tex]tan^{-1}[/tex] to find Ф

∵ Ф =  [tex]tan^{-1}[/tex] ( [tex]\frac{1}{3}[/tex] )

∴ Ф = 18.43494882

→ Round it to the nearest tenth

∴ Ф = 18.4°

∴ The measure of the acute angle is 18.4°

Answer:

monkeys 15:3 zebras

45/15 = 3

3 X 3 = 9

there are 9 zebras

Answer:

yes it is a right triangle

Step-by-step explanation:

Answer:

of course not

Step-by-step explanation:

use Pythagoream thereom

12^2 + 14^2 does not equal 25^2

Answer:

677

Step-by-step explanation:

785-27= 758

27*3= 81

758- 81= 677

I hope this helps!!!!

Answer:

A, B, and D

Step-by-step explanation:

Substitute all the coordinates into the equation. (x, y)

3(-2) - (-7) = 1

-6 - (-7) = 1

1 = 1

3(-1) - (-4) =1

-3 - (-4) = 1

1 = 1

3(0) - (1) = 1

0 - (1) = 1

-1 does not equal 1

3(3) - (8) = 1

9 - (8) = 1

1 = 1

The ordered pairs which are solutions to the equation 3x − y = 1 are:

By testing;

For A. (−2, −7); we have;

For B. (−1, -4); we have;

For C. (0, 1); we have;

For D. (3, 8)

Read more on equation solutions:

https://brainly.com/question/2284807

Answer:

i think b

Step-by-step explanation:

Answer:

the third one

Step-by-step explanation:

all you have to do is multiply the exponents

Answer:

#1: ????

#2: [tex]\frac{3}{4}[/tex] x [tex]15[/tex]

#3: [tex]\frac{7}{8}[/tex] ÷ [tex]\frac{3}{4}[/tex]

Step-by-step explanation:

For #2:

[tex]\frac{3}{4}[/tex] x [tex]15[/tex].

It's that because there are 3/4 cups of honey for one cake. To use for 15 cakes, you would have to multiply it by 15.

For #3:

[tex]\frac{7}{8}[/tex] ÷ [tex]\frac{3}{4}[/tex].

It's that because the baker has 7/8 cups of honey. It takes 3/4 cups of honey for one cake. So you have to divide it by 3/4 cups in order to find out how many cakes.

Hope this helped! <3

Answer:

1) he will drive 180 miles in 4 hours

2) 45 mph

3) 2 hours

4) 270 miles

Step-by-step explanation:

Number 1:

The point is on (4,180) and since the x is hours and the y is miles. In 4 hours he can drive 180 miles.

Number 2:

For the unit rate we will use the same point (4,180) and put it the y over the x and simplify. [tex]\frac{y}{x}=\frac{180}{4}=\frac{45}{1}=45[/tex] so in 1 hour he can drive 45 miles.

Number 3:

Now for this we should set up an equation [tex]y=45x[/tex]. So they told us if he drove for 90 miles that means we will substitute the y and place the 90 because as I said in number 1 y is miles.

[tex]y=45x\\90=45x\\x=2[/tex]

So it'll take him 2 hours to drive 90 miles.

Number 4:

Now they are telling us how many miles can he drive if he drives for 6 hours. We can use the same equation for this and instead we will be substituting for x since x is hours.

[tex]y=45x\\y=45(6)\\y=270[/tex]

So if he would to drive for 6 hours he can drive 270 miles.

Answer:

The ratio for writing utensils to school supplies is 8:12

Answer:

4:12?

If writing utensils = pencils

and school supplies = erasers + crayons,

I believe that is the answer.

If not, sorry.

Answer:

Its the 2nd one

Step-by-step explanation: Hope this helps!

Answer:

Step-by-step explanation:

The first and second statements are correct but the third statement incorrect.

Therefore the correct choice is C. I and II only

Answer: $4.80

Step-by-step explanation: 24 * 0.20 = 4.80

Answer:

p=7

Step-by-step explanation:

2(p + 1) = 16

2p + 2 = 16

     -2      -2

2p = 14

/2     /2

p=7

Answer:

p = 7

Step-by-step explanation:

Took a test!

Answer:

1/2x+7

Step-by-step explanation:

Answer: 11

Step-by-step explanation:

First use a step by step process called BODMAS which stands for brackets of(x) division multiplication additon and subtraction

Hey there!

This answer to your question is it is false.

This is because you could have a rectangle with a length of 6 and a width of 4, and the area would be the same as a rectangle with a length of 8 and a width of 3. They would both be 24.

Hope it helps and have an amazing day! Stay safe!

6

6 multiplied by 12 =72

72 multiplied by 2 =144

-72/-12 equals 6.

Hope it helps!

Answer:

[tex]745x8fe15421[/tex]

Answer:

53x-28x

Step-by-step explanation:

Area equals length tomes width, so multiply them. You would multiply them by using the distributive property, lastly add like terms.

Answer:

Step-by-step explanation:

Answer:

m = 300

Step-by-step explanation:

[tex]m/5 = 60[/tex]

multiply both sides of the equation by 5

[tex]m = 60 * 5 = 300[/tex]

Answer:

n = 300

Step-by-step explanation:

60 * 5 = 300

m = 300

Step-by-step explanation:

B.x2-8 it this because u work brakets first

=======================================================

Explanation:

The vertical side of the blue triangle is PR = 2

The corresponding vertical side of the green triangle is P'R' = 4

The scale factor is the ratio of those two corresponding sides. So we divide the two side lengths.

scale factor = (P'R')/(PR) = (4)/(2) = 2

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

We could also say:

scale factor = (R'Q')/(RQ) = (6)/(3) = 2

Or you could find the lengths of PQ and P'Q' through the distance formula, or Pythagorean theorem, and apply the same idea as shown above.

Answer:

c=8

Step-by-step explanation:

The value of c that makes z = -5/4 an extraneous solution is c = 24/5.

A linear equation is defined as an equation in which the highest power of the variable is always one.

The equation is given as:

√{4z + 9} = cz + 8

An extraneous solution is a solution that is not a valid solution to the original equation, but it is obtained during the process of solving the equation. In this case, the extraneous solution is z = -5/4.

To determine the value of c that makes z = -5/4 an extraneous solution, we can substitute -5/4 for z in the original equation. This gives us the following:

√{4 × -5/4 + 9} = -5/4 × c + 8

√{-5 + 9} = -5/4 × c + 8

√4 = -5/4 × c + 8

2 = -5/4 × c + 8

5/4 × c =  8 - 2

5/4 × c = 6

c = 6 × 4/5

c = 24/5

Therefore, the value of c that makes z = -5/4 an extraneous solution is c = 24/5.

Learn more about the equations here:

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Responda:

22:30

Explicação passo a passo:

Dado que :

Hora definida pela mãe = 20h00

Número de horas além do tempo definido = 2 horas e 30 minutos

Hora em que ela voltou para casa:

(tempo definido pela mãe + número de horas além do tempo definido)

(20h + 2 horas e 30 minutos) = 22h30