Given that 2 x − 2 y = 23 Find x when y = 9 Give your answer as an improper fraction in its simplest form

Answer:

20c= 30(c-9)

Step-by-step explanation:

The first step in solving a word problem is always to organize the information you have, and put it into equations to solve.

Let c be the cost per student originally.

The cost of the bus has not changed, so the cost/student * the number of students has not changed:

Answer:

The first one.

Step-by-step explanation:

solving for x:

5/2 = 7.5/x

cross multiply

2 ×7.5 =5x

x= 2×7.5/5

x= 3

solving for y:

values of the small triangle over the bigger triangle-

5/6 =7/y

cross multiply and solve for y

y= 8.4

therefore (x= 3; y= 8.4)

YOU ARE VERY WELCOME!

Răspuns:

64 cm

Explicație pas cu pas:

Perimetrul fiecărei margini a unui cub:

4 * lungime laterală

Lungime laterală = 16cm

Prin urmare, perimetrul va fi:

4 * 16cm

= 64cm

Answer:

the area is C. 39

Step-by-step explanation: If you split them into there own shapes and add them at the end.

2 x 6 = 12

3 x 5 = 15

3 x 4 = 12

12 + 12 = 24

24 + 15 = 39

hope this makes sense

Given:

A figure of a triangular prism.

Height of triangular base = [tex]9\dfrac{2}{3}[/tex] yd

Base of triangular base = 4 yd

Height of prism = 4 yd.

To find:

The volume of the triangular prism.

Solution:

Volume of a triangular prism is:

[tex]V=Bh[/tex]              ...(i)

Where, B is the area of triangular base and h is the height of the prism.

Area of triangular base is:

[tex]B=\dfrac{1}{2}\times base\times height[/tex]

[tex]B=\dfrac{1}{2}\times 4\times 9\dfrac{2}{3}[/tex]

[tex]B=2\times \dfrac{29}{3}[/tex]

[tex]B=\dfrac{58}{3}[/tex]

Putting [tex]B=\dfrac{58}{3}[/tex] and h=4 in (i), we get

[tex]V=\dfrac{58}{3}\times 4[/tex]

[tex]V=\dfrac{232}{3}[/tex]

[tex]V=77.33...[/tex]

[tex]V\approx 77.3[/tex]

The volume of the triangular prism is 77.3 cubic yards. Therefore, the correct option is 2.

Answer:

that answe is b

Step-by-step explanation:

b because i took this test

Answer:

Much like when you divide by a negative number, the sign of the inequality must flip! ... When you multiply both sides by a negative value you make the side that is greater have a "bigger" negative number, which actually means it is now less than the other side!

Step-by-step explanation:

Answer:

It switches sides

Step-by-step explanation:

Example 2<4, 2<4(-2)=2<-8

Answer:

a: 5

b: (0, -2)

c: 3

d: (0, 11)

Step-by-step explanation:

Hope this helps!

Hope this helps

Substitute the values of angles P and Q in an equation that equals 90 degrees

62° + 4x = 90°

Then isolate the variable by first subtracting 62 from both sides

62 + 4x = 90           →    4x = 28

-62           -62

Then divide both sides by 4

4x = 28               →  x = 7

/4    /4  

Answer:

x=5.12

Step-by-step explanation:

35.16= 4.44+6x

30.72=6x

5.12=x

x=5.12

Hope this helps :)

Answer:

Critical-thinking skills and knowledge of enviromental regulations, 71 A or -15/2

Step-by-step explanation:

Answer:

61 degrees

Step-by-step explanation:

1a.) -5.36

Franco is requesting a group of negative numbers, so in this case, -5.36 is negative and would fall under that category.

1b.) 4.6272727

Mai is requesting the group to have repeating decimals, in this case, 4.62727 would work.

Answer:

63

Step-by-step explanation:

all you need to do is 9*7

Answer:

7x-2+5x-10+4x=180°

16x-12=180

16x=192

x=192/16

x=12

Answer: The measure of one angle is 130°. Which statement is true regarding the 130° angle and angle 3? They are same-side interior angles, so angle 3 measures 50°. They are alternate interior angles, so angle 3 also measures 130°.

Step-by-step explanation:

answer:

the answer is b

Answer:

X is less than or equal to -3

Hope that answers your question

Answer:

A

Step-by-step explanation:

because she said half of X so 1/2x and then +3 to that half  

Answer:

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

Answer:80:10

Step-by-step explanation:

1=20 4=80

Answer:

[tex]\frac{58}{35}[/tex] is the answer.

Step-by-step explanation:

1) Use this rule: [tex]\frac{a}{b} * c = \frac{ac}{b}[/tex]

[tex]\frac{4}{5} + \frac{3*2}{7}[/tex]

2) Simplify 3 * 2 to 6.

[tex]\frac{4}{5} + \frac{6}{7}[/tex]

3) Simplify.

[tex]\frac{58}{35}[/tex]

Therefor, the answer is 58/35 and if you need it on decimal form it would be, 1.657143.

Answer:

9) ASA

10) SAS

11) SAS

12) SAS

13) not similar

14) AA

15) not similar

Step-by-step explanation:

Answer:

105

Step-by-step explanation:

cuz it is corresponding angle

Answer:

3

Step-by-step explanation:

2 times 1 is 2 and then multiply 1/2 by 2 and you'll get 1 then add those two numbers together and you will get 3.  Note: The best way to do these types of things in multiplication is to split the numbers up among the decimal places so if you did 15 times 4 then an easy way to do it would be to split the 15 with 10 and 5 so then multiply the 10 by 4 and you get 40 now do the same to the 5 and you get 20 so now add those two numbers together and you get 60(This has nothing to do with the answer i just want to help make it easier for future problems such as this).

Answer:

3

Step-by-step explanation:

[Given]

2 * [tex]1\frac{1}{2}[/tex]

[Make improper fractions and solve by multiplying across]

[tex]\frac{2}{1}*\frac{3}{2} =\frac{6}{2}=3[/tex]

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

Answer:

a symbol, usually a letter, used to represent a number in mathematical expressions or sentences

Step-by-step explanation:

Hope it helps

Answer:

4) choice 2, "a symbol, usually ......."

5) choice 1, "one variable equals ...."

Step-by-step explanation:

a term is either a single number or variable, or the product of several numbers or variables.

Answer:

the answer is x<4

and the line is an open circle line going to the left from positive 4 onward

280 tickets per 4 hours

So: 280/40

=70 tickets

70 tickets per hour

So: 70 x 7

=490 tickets

Answer:

490

Divide 280 by 4 to get average of 70 tickets an hour.

Multiple 70 X 7= 490