Please help me with 3-5!

Answer:

x = 40

Step-by-step explanation:

(3x + 5) + (x + 15) = 180

3x + 5 + x + 15 = 180

4x + 20 = 180

      -20    -20

4x = 160

÷4      ÷4

x = 40

I hope this helps!

Answer:

y = -5x - 3

Step-by-step explanation:

To answer this the slope must be clculated first

slope equation:

[tex]\frac{y2-y1}{x2-x1}[/tex]

these variables symbolize ordered pairs, and the best part is that you can use any two ordered pairs for this example we can use (-5, 10) and (-3,0)

we'll call the first ordered pair 1 so x1 = -5 and y1 = 10.

the next odered pair is 2 so x2 = -3 and y2 = 0.

With this information layed out we can solve:

[tex]\frac{0-10}{-3-(-5)}[/tex]

0 - 10 = -10

-3 - (-5) = 2 --- remember negatives cancel each other out to make a positive

[tex]\frac{-10}{2}[/tex] = -5

the slope of the line is -5. Now the next thing to note is that one of the ordered pair (-3,0) is a y intercept. It's time to introduce the equatione of a line:

y = mx+b

There are other equations that can be used for a line but with the info given this equation best suits the data.

m = slope

y and x = are the ordered pair you can input into the equation to slove

b = the y intercept

So the equation would be:

y = -5x - 3

Answer:

-2, -1, 0, 1, 2

Step-by-step explanation:

-4/2=-2

-2/2=-1

0/2=0

2/2=1

4/2=2

Answer:

2,379 & look below for remaining numbers

Step-by-step explanation:

The divisor 4 goes to the left of the whole box, because you are dividing all the numbers by 4.

So for the last box, 4 x 9 = 36

For the top of the 3rd box, it's 4 x ? = 280, so you do 280 divided by 4 = 70

For the 2nd box, 4 x 300 = 1200

For the 1st box, I did the problem of 9516 divided by 4 in long division form.  4 goes into 9 only 2 times & the 2 is in the thousands place.  So on top of the 1st box goes 2,000 & in the box goes 4 x 2,000 = 8,000.

Add 8,000 + 1,200 + 70 + 36 = 9,516

9,516 divided by 4 = 2,379

2,000 + 300 + 70 +  9 = 2,379

Answer:

4. 30 ft

5. 4 m

6. 32 mm

Step-by-step explanation:

diameter= radius x 2

Answer:

Draw an open circle on 2 and continue the arrow left.

Step-by-step explanation:

Answer:

x < 2

Step-by-step explanation:

your welcome and pls give me the brainliest

Let's simplify these ratios:-

1. 3:9

Divide both sides by 3:-

1:3

 2. 9:27

Divide both sides by 9:-

1:3

  3. 2:4

Divide both sides by 2:-

1:2 (Option C)

 4. 30:90

Divide both sides by 30:-

1:3

Hope everything is clear; if you need any explanation/clarification, kindly let me know, and I will comment and/or edit my answer :)

Answer:

11x11= 1

1/2x11x10x4

=220

121+220=341

Answer:

I would say 80 pounds worth of tennis and ping pong equipment  

Step-by-step explanation:

8lbs+72lbs=80lbs

Answer:

B, C, and E

The reason B, C, and E are the answer's is because the equation of a linear equation is y= mx+b. B, C, and E are written this way. We can eliminate A and D because They are quadratic equations, because the X is squared.

Hope This Helps! :) Please mark brainliest!

first I start with 1 and multiply 2 =2 and add 1 =3

so on

start with 40 divided by 2 =20+4=24

The sum total of the sequence would be 45, using the two steps given.

This refers to the use of mathematics to solve equations and letters represent numbers.

Although your sequence is incomplete because it only gave two steps, I would work with only those steps.

Hence, if the first number is 1,

Multiply by 2, 1 x 2= 2

DIvide by 2, 2/2= 1

Add 4, starting from 40.

1+44= 45.

Read more about algebra here:

https://brainly.com/question/432678

#SPJ2

Answer:

a - 30.5

b - 31

c - 31

d - 2

Step-by-step explanation:

Mean is average:

31,29,31,30,31,30,31,31,30,31,30,31

366/12

30.5

Median is the middle of the data points.

Line data points up in order from least to greatest.

29,30,30,30,30,31,31,31,31,31,31,31

12/2=6

Since there is an even amount data points the median is the mean of the two middle data points:

Middle data points: 31,31

31

Mode is the most common data point.

It would be 31.

Range is highest point subtracted by lowest point.

31-29=2

Answer:

Yes, I think that is the right answer.

Step-by-step explanation:

Answer:

it should be -7

Step-by-step explanation:

-13-2=-15

-15 add 8 = -7

hope this helps.

Answer:

It increased by 33.696

Step-by-step explanation:

I took the test, :D-|--=:

Answer:

b

Step-by-step explanation:

first, figure out the radius. the radius is the 1/2 of the diameter, so 5. in the equation, the formula is pi x radius^2. so 5^2 is 25. then 25x3.14 is b, and we have our answer.

Answer:

b

Step-by-step explanation:

10 divided by 2=5 radius

to get area = Radius^2 x pi

5x5x3.14= 78.5 square units

Hope this helped!

Answer:

sorry but what do i answer

Answer:

d

Step-by-step explanation:

Answer:

50⁰

Step-by-step explanation:

we know that sum of angles in a triangle is equal to 180⁰

on adding the angles we get

x⁰+x⁰+20⁰+x⁰+70⁰=180⁰

3x⁰+90⁰=180⁰

3x⁰=90⁰

x⁰=30⁰

Now angle R=x+20=30+20=50⁰

Answer is 50⁰

I HOPE IT HELPED YOU

Answer:

50 degrees

Step-by-step explanation:

[tex]\qquad\qquad\huge\underline{{\sf Answer}}♨[/tex]

Let's solve ~

[tex]\qquad \sf  \dashrightarrow \: - \frac{4}{3} x < - 8[/tex]

[tex]\qquad \sf  \dashrightarrow \: - x < - 8 \times \frac{3}{4} [/tex]

[tex]\qquad \sf  \dashrightarrow \: - x < - 2 \times 3[/tex]

[tex]\qquad \sf  \dashrightarrow \: - x < - 6[/tex]

Multiply both sides by -1, hence inequality changes

[tex]\qquad \sf  \dashrightarrow \:x > 6[/tex]

Answer:

6

Step-by-step explanation:

455.8125      or      [tex]\sf 455\frac{13}{16}[/tex]

follow the BODMAS rule:

Let's start!

(1+20-9/32)*((2+5)2+16/2)

remove brackets

(1+20-9/32)*(7*2+16/2)

division

(1+20-0.28125)*(7*2+8)

multiplication

(1+20-0.28125)*(14+8)

addition

(21-0.28125)*(22)

subtraction

(20.71875)*(22)

simplify

[tex]\sf 455.8125 \ \ \ or \ \ 455\dfrac{13}{16}[/tex]

Answer:

7293/16 or 455 13/16

Step-by-step explanation:

To solve this problem, we need to remember the BPEMDAS.

Where:

Solving the expression using PEMDAS:

[tex]\huge{\text{(}1+20-\dfrac{9}{32}\huge{\text{)} \times \huge{\text{(}[2+5]2+\dfrac{16}{2} \huge{\text{)}[/tex]

[tex]\rightarrow \huge{\text{(}1+20-\dfrac{9}{32}\huge{\text{)} \times \huge{\text{(}[7]2+\dfrac{16}{2} \huge{\text{)}[/tex]                                          [Brackets]

[tex]\rightarrow \huge{\text{(}1+20-\dfrac{9}{32}\huge{\text{)} \times \huge{\text{(} 7\times 2+\dfrac{16}{2} \huge{\text{)}[/tex]

[tex]\rightarrow \huge{\text{(}1+20-\dfrac{9}{32}\huge{\text{)} \times \huge{\text{(} 14+\dfrac{16}{2} \huge{\text{)}[/tex]                             [Parenthesis multiplication]

[tex]\rightarrow \huge{\text{(}1+20-\dfrac{9}{32}\huge{\text{)} \times \huge{\text{(} 14+8\huge{\text{)}[/tex]

[tex]\rightarrow \huge{\text{(}\dfrac{160}{160} +\dfrac{3200}{160} -\dfrac{45}{160}\huge{\text{)} \times \huge{\text{(} 22\huge{\text{)}[/tex]                                    [Parenthesis Add]

[tex]\rightarrow \huge{\text{(}\dfrac{3315}{160}\huge{\text{)} \times \huge{\text{(} 22\huge{\text{)}[/tex]                                                [Parenthesis Add/Subtract]

[tex]\rightarrow \dfrac{3315}{80} \times 11 = \dfrac{663}{16} \times 11[/tex]                

[tex]\rightarrow \dfrac{7293}{16}[/tex]                                                                            [Multiplication]    

To avoid confusion, let's convert the fraction into mixed fraction. Refer to image attached.

Step-by-step explanation:

let E be weight of expensive nuts, C be cheaper nuts

E*8+C*5=10*6 value equation

E+C=10 mass equation

Solve it by any method, I will do determinants

Det: 8-5=3

E= (60-50)/3=10/3 =3.33 lb

C= 80-60 /3=20/3 =6.66 lb

Answer:

mix nuts 20/3

nuts 10/3=

Step-by-step explanation:

x+y=10

5x+8y=60

Answer:

Graph A

Step-by-step explanation:

It’s the real numbers closer 0 then they are at 4.

Answer:

10

Step-by-step explanation:

The current probability of picking a red ball is [tex]\frac{x}{15}[/tex]. When 5 more balls are added, the probability is 3/4. We can write a ratio for this problem:

[tex]\frac{x+5}{15+5} = \frac{3}{4}[/tex]

When using cross multiplication to solve this, you get 3 * 20 = 4(x+5).

60 = 4x + 20

40 = 4x

x = 10 red balls

Answer:

angle 2=120°

angle 1=60

Step-by-step explanation:

70+50=120

or

180-(70+50)=60

angles on a straight line add up to 180°

180-60=120

Answer:

OMGGGG SO CUTEEE!!!

Step-by-step explanation:

Answer:The most wholesome thing I have ever seen in my life.

Step-by-step explanation:

Also 77 + 33 = 100!!