18 stamps on 3 sheets = ? stamps per sheet

Answer:

SteLet a = short leg of the right triangle, b = the longer leg, and c = the hypotenuse.

The longer leg of a right triangle is 4inches longer than the shorter leg: b = a + 4

The hypotenuse is 8inches longer than the shorter leg:  c = a + 8

Use the Pythagorean Theorem:

a2 + b2 = c2

a2 + (a+4)2 = (a+8)2

a2 + a2 + 8a + 16 = a2 + 16a + 64

a2 - 8a - 48 = 0

Factors to:

(a-12)(a+4) = 0

a = 12, -4

Since we can't have a side of -4, a = 12

Shorter Leg = 12 inches

Longer Leg = 12 + 4 = 16 inches

Hypotenuse = 12 + 8 = 20 inches

Answer:

In step one, -8 - 2 should result in -10, not -6.

Answer:

D = 36.7 feet

Step-by-step explanation:

Diagonal of a Rectangle

Given a rectangle of width W and length L, its diagonal can be calculated as the hypotenuse of a triangle of legs W and L as follows:

[tex]D=\sqrt{W^2+L^2}[/tex]

The dimensions of the living room are 32 feet by 18 feet, thus the diagonal is:

[tex]D=\sqrt{32^2+18^2}[/tex]

[tex]D=\sqrt{1024+324}=\sqrt{1348}[/tex]

D = 36.7 feet

Answer:

yessirr

Step-by-step explanation:

Answer:

yes

2,3,5,7,11,13,17,19,23 and so on

Answer: D, an enlargement

Step-by-step explanation:

i got the same question

Answer:30%

Step-by-step explanation:

original amount-new amount/original amount

30-21/30

9/30

write as a percent

30% off

Answer:

A., E.

Step-by-step explanation:

0.70 and 0.71 are greater than 0.68 but less than 0.72.

(hope this helps!)

Answer:

1. I believe some solutions could be x= -7, x= -8, x= -9 etc.

Step-by-step explanation:

2. If the inequality was -3x is greater than or equal to 18 then x and also be equal to x=6.

Answer:

9

Step-by-step explanation:

Answer:

144.2 cm

Step-by-step explanation:

Length of the iron rod is 7.4cm

Radius is 3.1m

Therefore the surface area can be calculated as follows

= 2πrl

= 2×3.142×3.1×7.4

= 144.2 I'm

Hence the surface area is 144.2cm

Answer:

1) 3.21 by itself if rational, I don't know if the dots mean anything, but if they do, then it is irrational.

2) Pi is an irrational number as it repeats forever.

Answer:

Height of boy = 140 cm

Height of sister = 70 cm

Height of father = 170 cm

Step-by-step explanation:

Given that:

Combined height = 3.8 meters = 3.8*100 = 380 cm

Let,

b be the height of boy

s be the height of sister

f be the height of father

According to given statement;

b + s + f = 380     Eqn 1

b = 2s                  Eqn 2

b = f - 30             Eqn 3

Putting b=2s in Eqn 3

2s = f - 30

[tex]s=\frac{f-30}{2}[/tex]    

Putting these values in Eqn 1

[tex]f-30+\frac{f-30}{2}+f=380\\\frac{2f-60+f-30+2f}{2} = 380 \\\\5f - 90 = 760 \\5f = 760+90 \\5f = 850[/tex]

Dividing both sides by 5

[tex]\frac{5f}{5}=\frac{850}{5}\\f=170[/tex]

Putting f=170 in Eqn 3

b = 170 - 30

b = 140

Putting f=170 in Eqn 2

140 = 2s

s = 70

Hence,

Height of boy = 140 cm

Height of sister = 70 cm

Height of father = 170 cm

Answer:

y*y*y*y*y

y^5

Step-by-step explanation:

When you multiply exponents with the same base you're supposed to add them so your answer to the first is y^5 but your teacher is being weird and wants you to write it with no exponents so you can just write it 5 times

so number one is y*y*y*y*y

I answered number two in my explanation above

you add the exponents

y^2+y^3=y^5

if you have any questions let me know

Answer I don't know the answer but I just want to say I hope you do well!

Step-by-step explanation:

Answer:

After the last lap it will take him 11 min to complete the lap and over all his time was 1 hour 14 min.

Step-by-step explanation:

Lap 1: 7:30

Lap 2: 8:00

Lap 3: 8:30

Lap 4: 9:00

Lap 5: 9:30

Lap 6: 10:00

Lap 7: 10:30

Lap 8: 11:00

= 74:00 = 1 hour 14 min

PLZ THANK AND 5 STAR AND GIVE BRAINLIEST :)

Answer:

(2,-1.5)

Step-by-step explanation:

6x-4y=18

-x-6y=7

Switch the second equation from standard form to y=mx+b form

-x-6y=7→  -x=7+6y → multiply both sides by -1→ x=-7-6y

Substitute all of the things that equal x into the other equation into x

6x-4y=18→ 6(-7-6y)-4y=18

Simplify

-42-36y-4y=18

Bring - 42 to the other side and add like terms

-42-36y-4y=18→ -40y= 60

Solve for y

y=-1.5

Choose an equation and plug y in it.

-x-6(-1.5)=7

-x+9=7

-x=-2

Multiply both sides by -1

x=2

Answer:

The answer to this question would be 1/4 *5=1.25

Step-by-step explanation:

PLZZ mark me brainliest

Answer:

Step-by-step explanation:

so all the angles of a triangle add up to 180 degrees

180-42-62= 76

so we know angle TUS is 76 degrees

the other triangle has an angle of 78 degrees which isn't 42, 62, or 76.

The triangles are not similar because similar shapes have congruent angles

Both triangles only have one pair of congruent angles (m∠TSU ≅ m∠RSQ), therefore, the triangles are not similar.

From the image given:

m∠TSU = m∠RSQ = 62°

m∠TUS = 180 - 42 - 62 = 76°

m∠QRS = 180 - 78 - 62 = 40°  

Thus, both triangles only have one pair of congruent angles (m∠TSU ≅ m∠RSQ), therefore, the triangles are not similar.

Learn more about similar triangles on:

https://brainly.com/question/1995263

Answer:

y = x - 1

Step-by-step explanation:

Find the slope:

(-4 - (-2))/(-3 - (-1))

-2/-2 = 1

y = x + b

Plug in one of the points:

(-1,-2)

-2 = -1 + b

b = -1

y = x - 1

Answer:

a + c = 95........eq1

15a + 7c = 1,025....eq2

Step-by-step explanation:

Given:

Total number of ticket sold = 95

Total amount collected = $1,025

Price of each adult ticket = $15

Price of each child ticket = $7

Computation:

Number of adult tickets sold = a

Number of child tickets sold = c

So,

Number of adult tickets sold + Number of child tickets sold = Total number of ticket sold

a + c = 95........eq1

and

15a + 7c = 1,025....eq2

Answer: 6

Step-by-step explanation: 22 / 6 = 3.6666666666666666666666666667

Based on the information given, the equation will be 3x + 10y = 22.

Let the number of times she walks be x.

Let the number of times she rides be y.

Since she runs 3miles, therefore, from the information given, the equation will be 3x + 10y = 22.

Learn more about equations on:

https://brainly.com/question/13763238

Answer:

A. 12 + (-9)

Step-by-step explanation:

adding 8 to 4 is 12 and 9 remains as it is.

Answer:

D

Step-by-step explanation:

they have like terms

Answer:

216 Minutes

Step-by-step explanation:

2x=18

x=9

Every mile is 9 minutes, so we can multiply 9 by 26:

234 minutes

But he has already ran for 18 minutes, so we can subtract:

234-18=216

Answer:

216mins  

Step-by-step explanation:

first divide 2/18 by 2 to see the rate and you get 1/9 so he runs 1 mile every 9 mins. You multiply 9 by 26 to get your answer and you get 234 subtract 18 and it will take him 216 more mins

answer:

x^2 - 2 x + 4

explanation: you want to factor the expression using a^3 + b^3= (a+b) (a^2 - ab+b^2)

then

(x,2) x (x^2 - 2x+4)

_________________

           x+2

then reduce so,

(x+2) x (x^2- 2x +4)

_________________

            x+2

then cross out  repeating which is x+2

then you get your answer!

Answer:

Let the number of hours he worked at his weekday job be x and the number of hours he worked at his weekend job be y, then

From (1): 25 + y = 40

y = 40 - 25 = 15.

Therefore, Beneio worked for 25 hours at his weekday job and 15 hours at his weekend job.

Step-by-step explanation:

9514 1404 393

Answer:

  B.  2x^2 -5x +2y

Step-by-step explanation:

Substitute the given expressions and collect terms.

  g(x) -f(x)

  = (2x^2 -3x +6y) -(2x +4y)

  = 2x^2 -3x +6y -2x -4y

  = 2x^2 -5x +2y . . . . . . . . . . matches choice B

Answer:

(11,2)

Step-by-step explanation:

Answer:

y=-1.4x+17.4

Step-by-step explanation: