Mathematics High School

amy is 6 years old than her sister, Kelly. The sum of their ages is 48. How old is Kelly? Write an equation.​

Answers

Answer 1

Answer:  21

Step-by-step explanation:

27 plus 21 equals 48

Related Questions

The ratio of the measures of the sides of a
triangle is 2:8:9. If the perimeter of the triangle
is 76 inches, find the length of each side.

Answers

Answer:

The length of the sides are 8 , 32 , 36

Step-by-step explanation:

Ratio of sides = 2  : 8 : 9

The sides are 2x , 8x , 9x

Perimeter of triangle = 76 inches

2x+ 8x + 9x  = 76

              19x = 76

                 x = 76/19

x = 4

2x = 2*4 = 8

8x = 8 * 4 = 32

9x = 9 * 4 = 36

Answer:

TIMES THEM BOTH AND DIVIDE BY 2

Step-by-step explanation:

Please help me with this homework

Answers

Both questions are true
Question 5 is true
Question 6 is false
Question 6 5^0=1 so (5^0)^3 is 1^3

what is the area of the figure below?

Answers

D) 53 inches squared

what is 4140000 in standard form

Answers

Answer:

four million one hundred forty thousand

Step-by-step explanation:

just read it correctly and then write it down

Answer:

its 414 (03)

you take the first 3 numbers and put it and then you count how many zeros there are and you put 0 and how many there are withch is 4

the value of an autograph of a famous actor increased from $40 to $64 what is the percent of increase please hurry!
​

Answers

Answer:

62.5%

Step-by-step explanation:

64-40= 24 - this means the increase was more than half the original price.

40/64 = 0.625 * 100= 62.5%

can also be rounded up to 63%

Complete the table using the equation y = 7x + 9.
X
-1
0
1
2
3
Y

Answers

Answer:

y=2

Step-by-step explanation:

this is because if you do 7x-7 it gets you to 0x and then you do 9-7 which gets you to 2 and then leaves you with y=2

Answer:

y=2.........................

how many degrees would you rotate to get from vertex to vertex in a hexagon?

Answers

Answer:[10] Using the formula (n - 2)180/n for the vertex angle of a regular n-gon, we find that the vertex angle for a regular hexagon is 120 degrees and for a regular octagon it is 135 degrees.

Step-by-step explanation:

20 out of the 80 students on the football team walk home. What percent of the football players walk home?

Answers

Answer:

25%

Step-by-step explanation:

Total number of students on the football team = 80

Number that walk home= 20

Then percent of the football players walk home can be computed as

= 20/80 × 100%

= 0.25 ×100

= 25%

Hence, percent of the football players walk home is 25.

can u answer question plezz​

Answers

Answer:

20cm square

Step-by-step explanation:

twelve less than a p
number is two

Answers

Answer:

P = 14

Step-by-step explanation:

First of all we know that P - 12 = 2

So, basically all we have to do is add 12 plus 2.

12 + 2 = P

P = 14

So, P should equal 14.

Answer:

p=14

Step-by-step explanation:

p - 12 = 2

   +12   +12

p = 14

Hope this Helps!!!

3x-4=8 what does x represent

Answers

Answer:

The 'x' represents time. Like how many minutes it takes to make something or how many weeks it takes to save up $50

Someone Help fast please

Answers

Answer:

CD and EF are parallel

Step-by-step explanation:

Parallel lines are lines in a plane that are always the same distance apart. Parallel lines never intersect.

Those two lines will always be the same distance apart, and they will never intersect, so therefore they are parallel.

jeremiah is eating at a restaurant he decides too tip the waiter 18% of his meal. if his meal cost $15.00 how much did he pay in total

Answers

Answer:

$17.70

Step-by-step explanation:

$15.00×18%=$2.70

$15.00+$2.70=$17.70

I need both answers now please and don answer if u don’t know

Answers

Answer:3048.7804878

Step-by-step explanation:

I took the same test p.s. you may need to round.

what is the answer to this equation -7 c + 2 = 16?

Answers

Answer:

c=-2

Step-by-step explanation:

Equation: -7c+2=16

-7c=16-2

-7c=14

c=14/-7

c=-2

Answer:

c = - 2

Step-by-step explanation:

Given

- 7c + 2 = 16 ( subtract 2 from both sides )

- 7c = 14 ( divide both sides by - 7 )

c = - 2

I need this hurry please
I’ll give brainliest if right, show work

Answers

Answer:

[tex]7x + y = 19 \\ 4x + y = 16 \\ so \: \\ 7x + y = 19 \\ - 4x - y = - 16 \\ 3x = 3 \\ x = 1[/tex]

[tex]7(1) + y = 19 \\ y = 12[/tex]

identify the polygon and classify it as regular or irregular



A. quadrilateral; regular

B.quadrilateral; irregular

C.pentagon; regular

D.pentagon;irregular

Answers

Answer:

B. quadrilateral; irregular

Step-by-step explanation:

Quadrilateral because it has 4 sides

Irregular because its angles and sides aren't all equal

1. Which of the following IS TRUE about an asymptote lines?

a. They are invisible lines that the graph cannot cross

b. They are always on the x axis and y axis

c. They only touch the function when x = 0

Answers

Answer:

The answer is B They are always on the x axis and y axis

simplify the ratio go 35:14

Answers

Answer:

5:2 is the lowest you could simplify it to

Step-by-step explanation:

To simplify the ratio [tex]35:14[/tex], we find the greatest common divisor of 35 and 14, and then we divide 35 and 14 by the greatest common divisor.

The greatest common divisor that you can use to simplify 35:14 is 7. This  means the answer to the ratio [tex]35:14[/tex] simplified is:

[tex]5:2[/tex]

Here is the math to illustrate better:

35÷7 = 5 and 14÷7 = 2

Thus, [tex]35:14[/tex] ratio simplified is [tex]5:2[/tex]

the 8th term of 3, 3/2, 3/4

Answers

Answer:

3/12

Step-by-step explanation:

0
1
2
3
4
5.
6
I don’t know what I’m doing

Answers

Answer:

me neither (TT)(TT)(TT)(TT)(TT)(TT)(TT)(TT)(TT)(TT)(TT)

9. At Ethan's tree Farm, the taller trees are braced by wires that extend 2 feet below the top of a tree, to a stake
in the ground. What is the tallest tree that can be braced with a 25-foot wire staked 15 feet from the base of the tree?

Answers

Answer:

22'

Step-by-step explanation:

25^2=15^2+x^2   where x=tree height less the 2' from the top

x=20'

Add the 2' from wire connection to top of tree.

22'

I NEED HELP. PEOPLE KEEP ANSWERING WITHOUT KNOWING THE ANSWER AND IT IS FOR MY GRADE.

Answers

Answer:

Im pretty sure its VA

Step-by-step explanation:

I hope this helps you out!

Most likely VA if not sorry!

Help me pls with this

Answers

Answer:

5 units

Step-by-step explanation:

radius is just half the diameter

Find the equation of the exponential function represented by the table below: 0 1 1 1 3 2 9 3 27​

Answers

Answer:

Step-by-step explanation:

comwe kid 56 67

A contractor bought 7.6 ft2 of sheet metal. She has used 3.5 ft2 so far and has ​$123 worth of sheet metal remaining. The equation 7.6x−3.5x=123 represents how much sheet metal is remaining and the cost of the remaining amount. How much does sheet metal cost per square​ foot?

Answers

Answer:

Sheet metal remaining = 4.1x

cost per square​ foot of sheet metal = $30

Step-by-step explanation:

Total sheet metal bought = 7.6 ft2

Total sheet metal used = 3.5 ft2

Given equation:

7.6x − 3.5x = 123

Where,

x = cost per square​ foot

7.6x − 3.5x

Sheet metal remaining = 4.1x

7.6x − 3.5x = 123

4.1x = 123

x = 123 / 4.1

x = $30

Cost per square​ foot = $30

This recipe makes 10 portions of porridge.
Complete the amount of each ingredient that is needed to make just 7 portions.

Recipe: Serves 10
350 g oats
1,400 ML MILK
70 g sugar

Answers

Answer:

245g of oats

980ml of milk

49g of sugar

Step-by-step explanation:

350÷10=35

1,400÷10=140

70÷10=7

35×7=245

140×7=980

7×7=49

What is the slope of the lime that passes through the points (-8, 3) and (-8, 2)?
Wiwite your answer im simplest form

Answers

Answer: The slope = Undefined
Explanation: These points make a vertical line. The slope for a vertical line does not exist. The proper name for this situation is “undefined slope”
The slope doesn’t exist

The slope of the tangent to a curve at any point (x, y) on the curve is x divided by y . Find the equation of the curve if the point (2, -3) is on the curve.

A) x2 + y2 = 13
B) x2 + y2 = 25
C) x2 - y2 = -5
D) x2 - y2 = 5

Answers

Answer:

I THINK MAYBE C hope this helps

Step-by-step explanation:

Graph the line y = -1/2x - 2​

Answers

Answer:

Step-by-step explanation:

Basically -1/2 is the slope meaning you go down 1 and go to the right by 2 and then the -2 is the y-intercept meaning when x=0 y=-2

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