javier buys 3 postcards during each day of vacation. how many days will javier have to spend on vacation before he will have bought a total of 18 postcards?

Answer:

B. 2(-2,-3)

Step-by-step explanation:

First we would plug it in.

7(-2)-5(-3)=1

Combine like terms

-14+15=1

Add

1=1

Therefore, your answer be would B

Answer:

=12x+42

Step-by-step explanation:

−3(4x+2)+6(4x+8)

Answer: 12x+42

Step-by-step explanation: −3(4x+2)+6(4x+8)

(−3)(4x)+(−3)(2)+(6)(4x)+(6)(8)

−12x+−6+24x+48

(−12x+24x)+(−6+48)

12x+42

Answer:

[tex]Volume = 1436.3cm^3[/tex]

Step-by-step explanation:

Given

[tex]Radius = 7cm[/tex]

Required

Determine the volume

This is calculated as:

[tex]Volume = \frac{4}{3}\pi r^3[/tex]

Substitute 7 for r

[tex]Volume = \frac{4}{3}\pi * 343[/tex]

Substitute 22/7 for [tex]\pi[/tex]

[tex]Volume = \frac{4}{3} * \frac{22}{7} * 343\\[/tex]

[tex]Volume = \frac{4}{3} * \frac{22}{1} * 49[/tex]

[tex]Volume = \frac{4312}{3}[/tex]

[tex]Volume = 1436.3333[/tex]

[tex]Volume = 1436.3cm^3[/tex] --- approximated

Answer:

-8

Step-by-step explanation:

-4(2)=-8

I like your profile picture

Step-by-step explanation:

given is an amazing anime

Answer:

492 Pages

Step-by-step explanation:

215+62=277

277+215=492

Answer:

10

Step-by-step explanation:

I used a calculator

Answer:

(x,y) becomes (-y,x) so (3,2) would become (-2,3)

Answer:

THe taxi ride was 18 miles

Step-by-step explanation:

I know this because 14x2=28 and they said the total was $29 and there was a $1  pickup fee

Answer:

14 miles

Step-by-step explanation:

29(the total sum) minus 1(the base fee) 28 divided by 2 equals 14 miles

Answer:

Step-by-step explanation:

b

Answer:

I can't see what the student did to solve the equation so I'll just solve the equation step by step here.

Step-by-step explanation:

2(x-7)=x-9

2x-14=x-9 Use distributive property to solve the parenthesis

x-14=-9 Subtract the x on both sides

x=5

Answer:

See step by step

Step-by-step explanation:

He didnt use the distributive property.

How to solve it is

[tex]2(x - 7) = x - 9[/tex]

[tex]2x - 14 = x - 9[/tex]

[tex]x - 14 = - 9[/tex]

[tex]x = 5[/tex]

Step-by-step explanation:

Question 1:

In the expression 4y - 6x² + 5 + 9x, there are

4 terms. (4y/6x²/5/9x) A term consists of a coefficient and a variable, or otherwise a constant term like 5.

Question 2:

4(6x - 5) - 7x

= (24x - 20) - 7x

= 17x - 20.

Therefore the correct answers are

the 1st and 2nd options.

Question 3:

3x - 8y + 11x - 4 + 5y

= (3x + 11x) + (5y - 8y) - 4

= 14x - 3y - 4.

The 4th option is correct.

Question 1

There are 4 terms.

They are 4y, 6x^2, 5, and 9x.

Terms are separated by operation signs (+, -, ×, ÷).

Even if a constant is multiplied by a variable, if there isn't a multiplication sign, it's one single term.

Question 2

Use the distributive property. Multiply the term outside the variable by the terms inside.

4×6x = 24x

4×(-5)=-20 (there's a negative sign incase you don't see it)

24x-20-7x

Since 24x and 7x are like terms, you can subtract them.

24x-7x=17x

17x-20

You can see the first and second choices are correct.

Question 3

Combine the like terms.

The like terms are

3x and 11x

-8y and 5y

-4

Add them all.

3x+11x=14x

-8y+5y=-3y

-4

So the expression simplified is...

14x-3y-4

It's the third choice.

Answer: g = 13 / Thats the output

Step-by-step explanation:

g = 25 - 3r

Its telling you the r is 4 since its the input.

g = 25 - 3 ( 4 )   see!! just plug in the number

Now Solve

g = 25 - 12

g = 13

Answer:

g = 13

Step-by-step explanation:

since r = 4, you make the equation :

g=25-3(4)

first you multiply 3 and 4 and you get 12

g=25-12

and 25 - 12 is 13 which equals :

g = 13

Answer:

sin B= 0.5678,

B=sin-¹(0.5678,)

B=34.59°

Answer:

A familial dispute amongst monarchs as to who inherited territory in the balkans.

Step-by-step explanation:

I learned from my mistake and it gave me that this was the answer.

Goodluck

Answer:

A.) A familial dispute amongst monarchs as to who inherited territory in the Balkans

Explanation:

I took the test.

Answer:

n = -256

Step-by-step explanation:

multiply -32 and 8 to find out what n is, in this case n = -256. If you'd like, you can check the answer by dividing -256 by 8.

Answer:

$7.96

Step-by-step explanation:

20 - 10.24 = 9.96 - 2 = $7.96

Answer:

12

10(3w)=6*5

30w=30

w=1

(not sure if youre meant to just have the equation or find w)

13

48°F

14

€1.25

Step-by-step explanation:

12

The floor area is found by multiplying its length by its width: 6*5=30

The amount of area covered by one tile is found by multiplying its length by its width: 3*w=3w.

Ten tiles are used to cover the floor, so the floor area should be equal to ten times the tile area:

10(3w)=6*5

30w=30

w=1

(not sure if youre meant to just have the equation or find w)

13

35°F is 13°F lower than the high temp. So, add 13°F to find the high temp.

35+13=48°F

14

Sixteen bagels cost €20. To find the price of one, we divide the price by the amount bought: 20/16=1.25

Answer:

each person gets 2 1/4 of a cupcake

Step-by-step explanation:

the correct division expression is 9/4=the amount of cupcakes each person gets

Answer:70

Step-by-step explanation:910/13=70 so he gives away 70 loafs of bread.

Answer: d i think im pretty sure

Step-by-step explanation:

Answer

i think its like 20 percent

Step-by-step explanation:

Answer:

x= - 7

Step-by-step explanation:

-4x= 28

x=28/-4

Answer:

it is roughly 15.3 laps (i rounded 1.6666666666667 to 1.7) i'll explain

Step-by-step explanation:

ratio of laps to minutes: 9:12,

20/12 = 1.6666666666667 rounded to 1.7

9 x 1.7 = 15.3

sorry that i had to round and that it is a little off, hoped i helped you tho

Step-by-step explanation:

Cost of 5 books = $ 36.25

Cost of 1 book = $36.25 / 5 = $ 7.25

The unit price is $ 7.25

Hope it will help :)

Answer:

Step-by-step explanation:

Answer:

0.5041 = 50.41% probability of getting 2 of the same colour

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

What is the probability of getting 2 of the same colour?

Both blue or both red

Since they are replaced, we have, in each trial:

6 blue from a set of 6 + 5 = 11

5 red from a set of 6 + 5 = 11

Probability of both blue:

Each with 6/11 probability. So

[tex]P = (\frac{6}{11})^2 = \frac{36}{121}[/tex]

Probability of both red:

Each with 5/11 probability. So

[tex]P = (\frac{5}{11})^2 = \frac{25}{121}[/tex]

Total:

[tex]p = \frac{36}{121} + \frac{25}{121} = \frac{61}{121} = 0.5041[/tex]

0.5041 = 50.41% probability of getting 2 of the same colour