evaluate 2r +1 if r=3

Answers

Answer 1

Answer:

7

Step-by-step explanation:

So, substitute in your 4 for r, 2(3) + 1. Multiply 2 and 3 to get 6 and then add a to get 7. I hope this helps :)


Related Questions

3)
Three angles are in the ratio 2:3:5
The smallest angle is 50
Work out the sizes of the other two angles

Answers

Answer:

The other two angles are 75° and 125°.

Step-by-step explanation:

Let three angles are 2x, 3x and 5x.

The smallest angle is 50.

It means,

2x = 50

x = 25

So,

3x = 3(25) = 75°

5x = 5(25) = 125°

So, the other two angles are 75° and 125°.

Similar triangles are congruent.
sometimes
always
never

Answers

the answer is always i’m pretty sure

Help please. A store has a sale. Customers can buy one item at full price and take 50% off the cost of a second item with a lesser price. Nikia buys one item with a price of $80 and another item with a price of $120. With the sale, what percent discount does Nikia receive on her total purchase?

Answers

Answer:

Your answer

70% discount on total price

Mark it as Brainlist. Follow me for more answer.

Step-by-step explanation:

Provide an exact evaluation of the expression:

Answers

-1/2 is the answer hope it's correct

if it is in degrees then it should be -1/2 if I’m not wrong. if it is radians the answer will be different

Y=2x

Y=7x-20

I’ll give you brainlessly

Answers

Answer:

(4,8)

Step-by-step explanation:

y = 2x

y = 7x-20

Step 1: plug in 2x for y

Step 2: subtract 7x on both sides

Step 3: divide by -5 on both sides

Step 4: plug in 4 into y = 2x

2x = 7x -20

-7x      -7x

-5x  = -20

-5         -5

x = 4

y = 2(4)

y = 8

HELP PLEASE ASAP!!!!!!!!

Brainliest goes to correct answer and 30 points given!!!!!

Answers

Answer:

lol lots of luck

Step-by-step explanation:

HELP I NEED HELP ASAP

Answers

B cause the rectangle is square

distribute 3(-4x-3)

Answers

Answer:

-12x-9

Step-by-step explanation:

3 times -4x is -12x

3 times -3 is -9

In an equation the answer is:

-12x-9

distribute the number outside the parenthesis to the ones inside.

3 • -4x

and

3 • -3

so -12x •-9

hope this helps

The total cost of making a daily taco special for a restaurant is represented by the function C (t) = 2.5t + 1 , where t is the number of tacos made. How does the total cost change for every taco special the food truck makes?
A. The total cost increases by $1.
B. The total cost increases by $2.50.
C. The total cost decreases by $1.
D. The total cost decreases by $2.50.

Answers

Answer:

C. The total cost increases by $2.50

Step-by-step explanation:

This is because 1 dollar is constent--- you will always have 1 dollar.

However 2.5 is the change, you have to times a number to get the answer.

EX:

(t) = 2.5t + 1

(4) = 2.5( 4) + 1 ----- plug in 4 for t

= 10 +1

= 11

The is the multiplyer or change is the 2.5t

and when you graph it it will almost always be the slope of the line.

Andre is running in an 80-meter hurdle race. There are 8 equally-spaced hurdles on the race track. The first hurdle is 12 meters from the start line and the last hurdle is 15.5 meters from the finish line.

Estimate how far the hurdles are from one another. Explain your reasoning.
Calculate how far the hurdles are from one another. Show your reasoning

Answers

Answer:600 and 3

Step-by-step explanation: I Just know the answer sorry

Answer:

it isnt 600 and 3 it is 32 meters.

Step-by-step explanation: Lol these idiots

Help please!
Diana bought a total of 22 items including boxes of pizza and sodas for an upcoming event. Each box of pizza cost $8 and each soda cost $1.50. If Diana spent a total of $137, which of the following is a true statement?
A. Diana bought 16 boxes of pizza.
B. Diana bought more sodas than boxes of pizza.
C. Diana bought 6 boxes of pizza.
D. Diana bought an equal number of sodas and pizzas

Answers

Answer:

B. I think

Step-by-step explanation:

1.50 times 86 equals 129 witch would mean Diana bought 86 sodas

8 is equal to 1 pizza so Dianna could have bought 1 pizza

86>1

8+129 is 137 so I think the answer is B.

Find the shaded area. 12 cm 18 cm 8cm 8cm

Answers

You start with finding area of both then subtracting area of white box.
12x18=216
8x8=64
216 - 64 = 152
So the area of the shaded area = 152 cm^2

Step-by-step explanation:

152 cm square is ur answer

WILL GIVE BRAINLIEST!! Why does 0.9999999... equal 1

Answers

Answer:

9, among other ways denotes the repeating decimal consisting of infinitely many 9s after the decimal point (and one 0 before it). This repeating decimal represents the smallest number no less than every decimal number in the sequence (0.9, 0.99, 0.999, ...). This number is equal to 1.

Step-by-step explanation:

Because if you round up it becomes 1

Write a rule for the linear function in the table.


f(x) = 4 – x

f(x) = x + 4

f(x) = x – 4

f(x) = 4x

Answers

Answer: BRAINLY

f(x)=x-4 is the answer i believe

Answer :

The function is  

Step-by-step explanation:

Given values in table :

x        f(x)

3         -1

4          0

5          1

6          2

Here we see there is a difference of 4 in the values of x and f(x)

i.e. 3-(-1)=4

or 4-0=4

Similarly 5-1=4

6-2=4

So x-F(x)=4

Adding F(x) -4 both sides

x-F(x) +F(x) -4=4+F(x) -4

We have F(x)= x-4

Step-by-step explanation:

i cant find the answer

Please, help me!!

My answer is
g: 43
h: 137
m: 49
K: 31

But I'm not sure.

Answers

Answer:

G is correct

H is correct

M is correct

K is 131

Step-by-step explanation:

Angles in a straight line add up to 180 degrees

Answer:

g: 43

h: 137

m: 49

K: 131

Step-by-step explanation:

i got it right

Look at the picture....

Answers

Answer:

now what

Step-by-step explanation:

Answer:

The graph of g is a vertical stretch of the graph of f.

Step-by-step explanation:

what is the answer to this equation : x+5=3x−1

Answers

Answer:    x = 3

Step-by-step explanation:

x+5 = 3x-1

+1           +1

x+6 = 3x

-x       -x

6 = 2x

/2     /2

3 = x

Answer:

x-3x=-1-5

-2x=-6

-2x/-2=-6/-2

x=3

Isabel’s class has collected 90 cans in a food drive. They plan to sort the cans into n bags, with an equal number of cans in each bag. Write an expression to show how many cans there will be in each bag.

Answers

Answer:

90/n

Step-by-step explanation:

There are 90 cans, and each bag MUST have an equal amount of cans, so if we had, let's say 2 bags, then there would be 45 bags. We got this by doing 90/2. 2 being n, the expression would be 90/n.

in the diagram the measure of angle one is 3X the measure of angle two is 12 X what is the measure of angle 4

Answers

Answer:

144°

Step-by-step explanation:

m<1 =3x

m< 2= 12x

1&2 are supplementary angles, so

3x+12x= 180

15x=180

x= 12°

measure of angle 4 equals the measure of angle 2

because they're head opposite angles

m<4= 144°

Choose the linear inequality that describes the graph. The gray area represents the shaded region.


4x – 6y ≥ 10

4x + 6y ≤ 10

4x + 6y ≥ –10

4x + 6y ≥ 10
please help !

Answers

Answer:

4x+6y<=10

Step-by-step explanation:

The linear inequality that describes the graph is 4x+ 6y ≤ 10.

What is Inequality?

Mathematical expressions with inequalities are those in which the two sides are not equal. Contrary to equations, we compare two values in inequality. Less than (or less than or equal to), greater than (or greater than or equal to), or not equal to signs are used in place of the equal sign.

As, The bold straight line passes through the points (1,1) and (-2, 3).

so, equation of line will be

(y- 1) = (3-1)/ (-2-1) (x-1)

y-1 = 2 / (-3) (x-1)

-3y + 3 = 2x - 2

-3y -2x = -5

If we multiply by 2 both side we get

-6y - 4x = -10

4x+ 6y= 10

So, the required inequality for gray area is 4x+ 6y ≤ 10.

Learn more about Inequality here:

https://brainly.com/question/14379175

#SPJ7

Write a ratio in simplest form that compares the number of basketball cards to the total number of cards.

Answers

I am expecting that 52 total cards

AGAIQJSJWJ PLEASE HELPP
y = 5x - 6&y= -4x + 3
Use the Equal Values Method to solve for x and y

Answers

Answer: x = 1 and y = -1

Step-by-step explanation:

Since both equations are equal to y, that means the equations are both equal to each other

5x - 6 = -4x + 3

Solve for x how you would traditionally do it with any other one-variable equation

9x = 9

x = 1

Plug the now known x value into either equation and you will get your y value.

5(1) - 6 = -1

-4(1) + 3 = -1


Which of the follow is true about it

Answers

I think it’s the second option
Answer: [tex]\boxed{\boxed{\sf{It~should~be~to~the~left~of~9~on~a~number~line.}}}[/tex]Solution Steps:

______________________________

1.) Solve [tex]\bold{\sqrt{73}}[/tex]:[tex]\sqrt{73}[/tex] ≈ [tex]8.544003745[/tex]

So your answer is [tex]\bold{On~the~left~of~9}[/tex].

______________________________

What is the name of this solid figure?

Answers

Answer:

the picture isn't whole, but what I see is a cylinder.

Step-by-step explanation:

Expresa como intervalo de solución de la desigualdad 5≤x-2≤7 *



[7,9]

[7,5)

[-7,9]

(7,9)​

Answers

Answer:

ahahahavvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv

Step-by-step explanagggggggggggggggggggggggggggggggggggggggtion:

vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvfgj

kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk

kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk

kkkkkkhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh


help anyone plsssss

Answers

Answer:

a

Step-by-step explanation:

15x+45

5*3=15

5*9=45

5(3x+45)

Directions:

Using the digits 1 to 6, at most one time each, fill in the
boxes so that top two equations are equal and the
bottom equation has the greatest value.
You can move the numbers around on the graph to
help.
First Attempt:
column 1
column 2

Answers

-6+3=-3
-2-1=-3
-4-(-5)=1

which table of values can be defined by the function y =6x - 2?

Answers


i need help with this question too! :(

Answer:

the answer is A

Step-by-step explanation:

5x - 4y = -10
y = 2x - 5
2 =
y =

Answers

Answer:

x=10

y=15

Step-by-step explanation:

Since we know y in terms of x, we can use substitution and say instead of-

5x-4y=-10

5x-4(2x-5)=-10

5x-8x+20=-10

-3x=-30

x=10

Substitute x into the equation-

y=2x-5

y=2(10)-5

y=20-5=15.

I NEED HELP PLEASEE ASAP

Answers

Answer:

7. open & shade right

4.  ∞>x>=11

5. 10.5<x<∞

9. closed & shade right

Step-by-step explanation:

Answer:

Step-by-step explanation:

K < 8= open circle on 8 shade left

d < 4 = open circle on 4 going to the left

9. closed circle on 13.5 going  to the right

Im not sure about the others but h oped this helped!

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