please help me, I'm terrible at math

Answer:

x=6

y=2

Step-by-step explanation:

-x+3y=0 (1)

x+3y=12 (2)

(1)+(2)<=> 6y=12

Answer:

32

Step-by-step explanation:

work backwards, 19-11=8 then x 4 makes 32.

Answer:

32

Step-by-step explanation:

Let the number be 'x'

[tex]\dfrac{x}{4}+11=19[/tex]

Subtract 11 from both sides

[tex]\dfrac{x}{4}=19 - 11\\\\\dfrac{x}{4}=8\\[/tex]

Multiply both sides by 4

x = 8*4

x = 32

Answer:

62 Pounds

Step-by-step explanation:

Sam weighs 57 pounds

he loses 4 pounds So he has 53 pounds now

then gains 9 pounds

53 + 9 = 62

Therefore Sam weighs 62 pounds

Answer:

66 people

Step-by-step explanation:

There are 264 in 4 subway cars, we can use proportions to solve this question so 264 people/4 cars = 4 cars/4 cars which equals 66 people = 1 car

The distribution is not a standard normal distribution.

We know that the variable (X) usually obeys and follows a standard normal distribution provided that the summation of (X) is zero and the variance of the random variable V(X) = 1.

Mathematically:

E(X) = 0 and V(X) = 1

Given that;

As such, the distribution is not a standard normal distribution.

Therefore, we can conclude that the distribution is not a standard normal distribution.

Learn more about standard normal distribution here:

https://brainly.com/question/11876263?referrer=searchResults

Step-by-step explanation:

these are all isoceles triangles (2 sides are equal). that also means that the 2 angles at the end of the equal sides are equal.

so, the angle at F and H are both 65°.

the angle at J = 2×65 = 130°.

the angle at G = 2×(180 - 65 - 65) = 2×50 = 100°.

remember, the sum of all angles in a triangle is always 180°.

so many ways now to get y.

let's use the triangle GH and crossing point of diagonals (there is a right angle).

y = 180 - G/2 - 90 = 180 - 50 - 90 = 40°

Answer:

4 days

Step-by-step explanation:

June starts on Monday

for 30days we have 4 weeks starting from Monday to Sunday and extra 2 days which are Monday and Tuesday

so we have 5 mondays and tuesdays

4 wed, thu, fri, sat, sun

Aliza played piano on june1 monday

So aliza played basketball on 5 tues + 4 thurs = 9 days

for calculating both basketball and paino

piano day should be on tuesday or thursday

from the below picture u can see pink dots are piano days

and yellow circles are both piano and basketball days

so on alternate weeks they are coinciding

so there are 4 days

Answer:

its 2120..............

Answer:

2,120

Step-by-step explanation:

multiply 20 by 106

1:106

Answer:  D: 0, 1, 2, 3

R: ($1600, $1900, $2200, $2500,...)

Fyi: If you want answers to something I don't think threating to reporting people trying to help you is a good idea.

The Domain is {0, 1, 2, 3, 4} and Range is { 1600, 1900, 2200, 2500, 2800}.

The range of values that we are permitted to enter into our function is known as the domain of a function. The x values for a function like f make up this set (x). A function's range is the collection of values it can take as input. After we enter an x value, the function outputs this sequence of values.

Given:

He is paid a salary of $1600 per month plus $300 for each car that he sells.

and,  His salary can be modeled by the equation f(x) = 300x + 1600

The Domain can be taken as

x= 0, 1, 2, 3, 4

and, the range is

f(0)= 1600

f(1)= 1900

f(2)= 2200

f(3)= 2500

f(4)= 2800

Learn more about Domain and range here:

https://brainly.com/question/28135761

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Answer:

3/2

Step-by-step explanation:

21/5×5/14

105/70

divide by 5

21/14

divide both by 7

3/2

The length of the wire AC is 61 meters.

Pythagoras theorem is used to show the relationship between the sides of a right angled triangle.

We can find the length of wire AC using Pythagoras theorem:

AC² = 60² + (66 - 55)²

AC² = 60² + 11²

AC² = 3721

AC = 61 meter

The length of the wire AC is 61 meters.

Find out more on Pythagoras theorem at: https://brainly.com/question/343682

Answer:

John can cover 2 miles in 1 minute

Step-by-step explanation:

There are 180 minutes in 3 hours. So 360 ÷ 180 = 2

Enjoy your day! ( ･U･)♡

Answer:

2400 eggs

Step-by-step explanation:

1. To find out how many eggs the poultry farmer had originally, we have to reverse the steps of him selling and eating this eggs.

2. (Solving)

Therefore, he had 2400 eggs originally.

Answer:

a4 = 128

a5 = -512

Step-by-step explanation:

a1= -2

q= (-1)^(n+1) × 4

a4 = a1q³ = (-2) (-4)³ = -2 × -64 = +128

a5 = a1q⁴ = (-2) (-4)⁴ = -2 × 256 = -512

Answer:

its a triangle you neeed to seee and to solve this

Step-by-step explanation:

y = x + 3

y=-x+ 5

A. (4, -1)

B. (-1,4)

C. (1,4)

D. (4,1)

It's an equilateral traingle

[tex]\\ \sf\longmapsto 4x-20=60[/tex]

[tex]\\ \sf\longmapsto 4x=80[/tex]

[tex]\\ \sf\longmapsto x=20[/tex]

Answer:

Step-by-step explanation:

-3-5=-8

-11-(-3)=-11+3=-8

-19-(-11)=-19+11=-8

it is an A.P. and c.d.=-8

so nth term is

an=a1+(n-1)d

an=5-(n-1)(-8)

an=5+8n-8

an=8n-3

Observing the given matrix we can say that:

1) The value is 4.

2) The value is 2.

So analyzing the different paths that can connect city 1 to city 3: The value is 4. It represents the number of one-stop routes between City 1 and City 3 that pass through City 2.

For the second statement we will have the value is 2. It is the number of direct routes from  City 2 to City 5.

Learn more: brainly.com/question/16823190

Answer:

14

Step-by-step explanation:

Divide

84 ÷ 3

= 28

28 ÷ 2

= 14

Therefore, there has to be 14.

Answer:

1224 boxes altogether

Step-by-step explanation:

Form two products and add the products together, as follows:

(22 bins)(36 boxes) + (18 bins)(24 boxes) = 1224 boxes altogether

Answer:

the answer to your question : Which statements regarding the diagram are correct? Check all that apply.

✔ST ≅ ST by the reflexive property.

✔∠RWS ≅ ∠UWT because they are vertical angles.

✔△RWS ≅ △UWT by AAS.

△RST ≅ △UST by SAS.

✔∠WTU ≅ ∠WSR because CPCTC

is provided in the picture below have a good day :)

Answer:

A, B, C, E

Step-by-step explanation:

Answer:

2/3

Step-by-step explanation:

the top has 2 on top and bottem has 3 or i am just du mb

Answer:

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

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (0, 2) and (x₂, y₂ ) = (3, - 2) ← 2 points on the line

m = [tex]\frac{-2-2}{3-0}[/tex] = [tex]\frac{-4}{3}[/tex] = - [tex]\frac{4}{3}[/tex]

The line crosses the y- axis at (0, 2 ) ⇒ c = 2

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

1: Angles 2 & 6 + angles 3 & 7

     - Angles that are on the inside of the parallel lines and on opposite sides of the transversal  

2: Angle 1

     - Angles in the same position but the other line

3: Alternate exterior angles

     - Angles that are on the outside of the parallel lines and opposite sides of the transversal

4: Same side interior angles

     - They are on the same side of the transversal and inside the parallel lines

5: Angle 2

     - It is supplementary and on the inside of the parallel lines

6: Angle 4

     - It is supplementary and on the outside of the parallel lines

7: 146°

     - They are corresponding angles, so they are the same measurement  

8: 128°

     - They are supplementary angles, so 180 - 52 = 128

For 9 & 10:

     - They are supplementary, so adding them together will result in 180 degrees

     - (8x + 63) + (5x) = 180 -> 8x + 5x + 63 = 180 -> 13x = 117 -> x = 9

     - Now we will plug it in to find the individual measurements:

9: 135°

     - 8x + 63 -> 8(9) + 63 -> 72 + 63 = 135

10: 45°

     - 5x -> 5 (9) = 45

                         I hope this helps, have a nice day! :D

Answer:

53

Step-by-step explanation:

72 = x + 3x - 4

72 = 4x - 4

72 + 4 = 4x - 4 + 4

76 = 4x

76/4 = 4x/4

x = 19

3(19) - 4 = 53

Hope this helps!

Answer:

A 4

Step-by-step explanation:

2(3)=6-2=4

Answer:

D. 8

Step-by-step explanation:

f(3) = 2·3 - 2 = 4

2·f(3) = 2·4 = 8

Answer:

75 000 000

Step-by-step explanation:

7 500 000 times 10 = 75 000 000

Answer:

15 is a composite number. 15 = 1 x 15 or 3 x 5. Factors of 15: 1, 3, 5, 15. Prime factorization: 15 = 3 x 5

Step-by-step explanation:

Answer:

15= 3 x 5

Step-by-step explanation:

                            15

                        /      /

                      5   x    3

3 and 5 both multiply together to make 15

Answer:

A  8º

B  76º

C  74º

D  128º

Step-by-step explanation:

The sum of the angles is 360

(3x + 10) + (3x + 4) + (x + 50) + (5x + 8) = 360

Combine like terms

12x + 72 = 360

Subtract 72 from both sides

12x = 288

Divide both sides by 12

x = 24

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

A (3x+10) = 3*24 + 10 = 82

B (3x+4) = 3*24 + 4 = 76

C (x+50) =  24 + 50 = 74

D (5x+8) = 5*24 + 8 = 128

Answer: Slope (M) = 7.5

Y-intercept (B) = 0

Step-by-step explanation:

For the slope, the first step is to find your "pretty points" (spots on the slope that hit the corner perfectly, like (0, 0) or (2, 15).

Now, make a triangle with the two points. Count the amount of squares on both. This will give you 3 and 4, but when taking the units into consideration, 15 and 2. The last step is to divide 15 and 2 which gives you 7.5. I would recommend writing both 15/2 and 7.5 but it's up to you.

The Y-intercept is just the spot where the Y is 0, or where the line touches the Y-axis. This is at the origin, where both X and Y are 0, so your Y-intercept is 0.

I'm kinda bad at explaining things in words, so sorry if this makes no sense, but I hope this helps!