Mathematics High School


If the perimeter of ABC = 9.7cm,
E is the midpoint of AC, and DE||BC, find the length of DE.

If The Perimeter Of ABC = 9.7cm, E Is The Midpoint Of AC, And DE||BC, Find The Length Of DE.

Answers

Answer 1

Answer:

3.2333 (repeated)

3.23 (rounded

Step-by-step explanation:

ADE is 1/3 of ABC so we just divide the perimeter by 3

9.7cm / 3 = 3.2333

This rounds to: 3.23

Related Questions

2.5(a + 4) + 0.5a = 12.4

Answers

Answer:

a=0.8

Step-by-step explanation:

First I distributed 2.5 into (a+4) and got (2.5a+10)+0.5a=12.4. I then combined like terms which are 2.5a and 0.5a and got 3a+10=12.4. I subtracted 10 from both sides to get rid of it and got 3a=2.4. Later, I divided 3 from both sides to get a which comes out to be 0.8.

Hope this helps you :)

????????????????????

Answers

add 12 to both sides.

Bob runs a total of 12 miles each week. He wants to increase the number of miles he runs each week by 1.5 miles until he is running a total of 26 miles each week. Provide an equation that can be used to determine the number of weeks Bob will need to reach his goal

Answers

Answer:

The equation is 12 + 1.5w = 26

Step-by-step explanation:

Each week running = 12 miles

He wants to increase the number of miles he runs each week by 1.5 miles until he is running a total of 26 miles each week.

12 + 1.5w = 26

Where,

w = number of weeks to reach his goal

12 + 1.5w = 26

1.5w = 26 - 12

1.5w = 14

Divide both sides by 1.5

w = 14 / 1.5

= 9.33 weeks

Guys I need help with this

Answers

The Y- intercept is 5! And I believe the slope is 10!

Answer:

y-intercept: 1

slope: 2/1

Step-by-step explanation:

1) In a survey, Eric, the team manager, asked all 120 soccer players in the league which drink they preferred during
and after the game.
Drink During Game After Game
Sports Beverage 70
10
Juice
10
80
Water
40
30
Directions: For each statement below, tell if it accurately represents the information from the survey AND
explain how you made each decision. (SHOW YOUR THINKING)
a. During the game, players prefer juice to water by a ratio of 4 to 1.
b. 25% of the players prefer water after the game.
c. More than half of the players prefer a sports drink during the game.

Answers

Your answer would be B
If this helped can I please get brainliest

(5x + 1)2 = 7
what are the solutions

Answers

Answer:

0.329 OR -0.729

Step-by-step explanation:

Answer:

x=1/2

Step-by-step explanation:

distribute first (5x+1)2

=10x+2

combine like terms

=10x+2=7 → transpose 2 then change the sign

=10x=7-2

=10x=5

divide bother sides with 10 to let x remain

=10x/10=5/10

=x=1/2

The median of a data set 8, 21, 17, and 13 is 15. If 17 is changed
to 18, what will be the new median? ASAP correct answers only pls help

Answers

15 will be the new median.

13x5=64 blank ÷ blank= 13​

Answers

Answer:

65 divided by 5 equals 13.

Step-by-step explanation:

Answer:

65 divided by 5= 13

Step-by-step explanation:

How much interest. does a $407 investment earns at 6% over a period of 6
years?

Answers

$146.52

You times the 407 by 6%, then you multiply the product by 6, which would leave you with the added amount.

The cost, in dollars, of cellular phone service with Econo-phone is given by C = 0.18x + 14.55, where x is the number of minutes used in one month.
a.
0.18 signifies the cost per minute, and 14.55 signifies the monthly service charge.
c.
14.55 signifies the cost per minute, and 0.18 signifies the monthly service charge.
b.
0.18 signifies the hourly phone rent, and 14.55 signifies the cost of the hardware.
d.
14.55 signifies the total phone bill, and 0.18 signifies the number of minutes used.

Answers

Answer:the answer is A

Step-by-step explanation:i just took the test

Answer: (A.)

Step-by-step explanation: Hope This Helps!

help me on problem 4 !!!!I WILL GIVE BRAINLIEST!!!!!

Answers

Answer:

b=12.20

Step-by-step explanation:

its asking for a triangle. there are two legs (the straight sides) and a hypotenuse*.( the slanted one) the formula for finding a missing side is a2+b2=c2. (squared) then you plug in your numbers. and c2 is always the slanted side while a and b are the legs. Sorry this was late tho.

can anyone help me with Combining like terms with negative coefficients
I'm not good at math

Answers

Yes if you give me brainiest

The shortest side of a right triangle is 14 inches long. The difference between the lengths of the other two sides is 2 inches. Find the missing sides. Use exact values.

Answers

Answer:

The missing sides are 50 inches and 48 inches long.

Step-by-step explanation:

Let the lengths of the other two sides be x inches and y inches

And let x represent the length of the longest side.

From the question,

The difference between the lengths of the other two sides is 2 inches. That is,

x - y = 2 ...... (1)

The three sides of the right triangle are x, y, and 14 inches long.

From the Pythagorean theorem, " In a right triangle, the square of the longest side equals sum of squares of the other two sides"

Here, the longest side is x

Hence, we can write that

x² = y² + 14²

∴ x² = y² + 196 ...... (2)

Now, we have two equations, we can then solve simultaneously.

From equation (1)

x - y = 2

∴ x = y + 2 ...... (3)

Put this into equation (2)

x² = y² + 196

(y+2)² = y² + 196

y² + 4y + 4 = y² + 196

4y + 4 = 196

4y = 196 - 4

4y = 192

y = 192/4

y = 48

To determine x, we will substitute the value of y into equation (3)

x = y + 2

∴ x = 48 + 2

x = 50

Hence, x = 50 and y = 48

Since the lengths of the other two sides are x inches and y inches,

Hence, the missing sides are 50 inches and 48 inches.

Match the mathematical expression with its translation

Answers

Order from top to bottom

bicycle rental company charges a $5 flat fee plus $1.20 per hour. Select the expression that represents renting a bicycle for h hours. A. 5h + 120h B. (5 + 1.20)h C. 5 + 1.20h D. 5h + 1.20

Answers

Answer:

a

Step-by-step explanation:

Complete each statement with a number that makes the statement true.
Column A
Column
1.
17 degrees
8. 8 degrees C
2
<-3 degrees
b. 16 degrees C
3.
>-4 degrees
64 degrees
4
-10 degrees C>
d. 5 degrees C

Answers

Answer:

Step-by-step explanation:

1). (d). 5°C < 7°C

2). (a). - 8°C < - 3°C  

3). (c). 4°C > - 4°C

4). (b). - 10°C > - 16°C

ASAP Can somebody plz answer all of them correct except for #1 thanks!
(Only if u done this before)
WILL MARK BRAINLIEST

Answers

Answer:

For number 2 that is going to be 1 4/5

number 3 is going to be 5 4/7

Number 4 is going to be 8 1/3

Number 5 is going to be 3 1/6

Number 6 is going to be 6 3/11

Step-by-step explanation:

I hoped this helps

Patrick spent a total of $29.82 for 14 paintbrushes, $31.84 for 16 drywall anchor screws, $27.15 for 12 light bulbs, and $36.54 for 18 pieces of sandpaper at his local hardware store. Which purchase had the highest per item cost?
A.
paintbrushes
B.
light bulbs
C.
sandpaper
D.
drywall anchor screws

Answers

Answer: Light bulbs.

Step-by-step explanation:

Paint Brushes: 29.82 ÷ 14 = $2.13 per brush.

Drywall Screws : 31.84 ÷ 16 = $1.99 per anchor screw.

Light Bulbs: 27.15 ÷ 12 = $2.26 per light bulb.

Sandpaper: 36.54 ÷ 18 = $2.06 per piece of sandpaper.

Need answer ASAP will give brainliest check out the picture

Answers

Answer:

i think... x=6

Step-by-step explanation:

3x+9=x+21

3x−x=12

2x=12

x=6

A snow making machine priced at $1800 is on sale for 25% off. The sales tax rate is 6.25%. What is the sale price including tax? If necessary round your answers to the nearest cent.

Answers

Answer:

1434.375

Step-by-step explanation:

If you multiply 1,800 by 25% you get 1,350

you take 1,350 and add 6.25% because the 6.25% is the tax.

Then you will get 1434.37 or 1434.40

Michelle has 3
3 cups of cereal. A serving of cereal is cup. How many servings of cereal does Michelle have?

Answers

Answer: 4/5

Step-by-step explanation:

Whats a negative number that has an absolute value greater than 10

Answers

Answer:

-11

Step-by-step explanation:

Absolute value means the distance from 0 so in this case, anything that is 10+ from 0 will work

Answer:

-11

Step-by-step explanation:

The absolute value of -11 is 11, and that is greater than 10.

I hope you enjoyed the answer, and if it was helpful, please mark this as brainliest! Thank you! :)

Please help, I will give brainliest to correct answer!!
n/4 = 6
What is the value of n?

Answers

Answer:

N=24

Step-by-step explanation:

N/4=6 (times 4 to the other side)

N=24

Answer:

n = 24

Step-by-step explanation:

1) Isolate n!

n/4 = 6

×4 ×4

n = 24

Graphic organizers
a.
Must be artistic
c.
Are timelines only
b.
Show relationships among information
d.
Show cause and effect only


Please select the best answer from the choices provided
HELP ME IM ON A QUIZ AND TIME IS ALMOST UP PLS

Answers

Answer:

Show relationships among information

Answer:

B

Step-by-step explanation:

-4x-y=24 missing value

Answers

Answer:

For solving x         x= -24+y/4  For solving Y                y=−24−4x

Step-by-step explanation:

This is solving for x

Add y to both sides.

−4x=24+y

Divide both sides by -4

and the answer is

x= -24+y/4

THis is solving Y

Add 4x to both sides

−y=24+4x

Multiply both sides by -1

and the answer is  

y=−24−4x

A doctor sees 6 patients in 11⁄2 hours. How many patients does the doctor see per hour?

Answers

Answer:

1.0909090909

Step-by-step explanation:

6÷5.5 is 1.0909090909

round to 1 ig

Answer:

4 patients per hour.

Step-by-step explanation:

1 1/2 hour = 90 minutes

90min/6p= 15min per patient

60min/15min= 4

Help 2.0 mathhhhhhhhhhh

Answers

Answer:

the answer is -13/15

Step-by-step explanation:

hope this helps

I need help with this

Answers

Answer:

First box:

1/8 of 5, 5 x 1/8, 5 divided by 8

Second Box:

8 divided by 5, 1/5 of 8,

Third Box:

5 x 8

Step-by-step explanation:

Kaya rented a limousine for prom. There was a one-time charge of $100, plus an hourly rate of $45. Her total cost for the night was $325. Type an equation to find how many hours Kaya rented the limo.

Answers

Answer:

325-100 = 225

225/45 = hours

You're welcome give brainliest thanks

4. A student buys a movie to watch on her phone, but she's worried about the
amount of storage space downloading it will take up. She starts the download and
notices it will download at a constant rate. After 3 minutes, she checks her phone
and sees that she has 2,345 MB of space available. She checks her phone after 7
minutes and notices that she now has 2,105 MB of space available.
(a) How many MB of available storage are being filled by the movie per minute?

Answers

Answer:

240

Step-by-step explanation:

by minusing the both values it'll be 240

The rate at which the storage space of the mobile gets filled by the movie is - 60 MB per minute.

Given that,
A student buys a movie to watch on her phone
it will download at a constant rate.
After 3 minutes, she checks her phone and sees that she has 2,345 MB of space available.
She checks her phone after 7 minutes and notices that she now has 2,105 MB of space available.

What is the rate of change?

The rate of change is defined as the change in value with the rest of the time is called rate of change.

Here,


Rate = (storage available after 3 minutes) - (storage available after 7 min)]
             ---------------------------------------------------------------------------------------------
                                              Time interval

Rate = (2,345 - 2105 ) / (3 - 7)
Rate = - 240 / - 4
Rate = - 60

Where negative sign shows that the amount of storage getting reduced.

Thus, the rate at which the storage space of the mobile gets filled by the movie is - 60 MB per minute.

Learn more about the rate of change here: https://brainly.com/question/13103052

#SPJ2

Other Questions
PLZ HELP :) The graph of linear functions f(x) and g(x) are shown on the graph. Which function is best represented by the graph of g(x)?A. g(x) = 3f(x)B. g(x) = f(x)+3C. g(x) = f(x-3)D. g(x) = f(x+3) If x = 14, which equation is true?A.3 ( 20 x ) = 44B.3 ( 12 x ) = 6C.2 ( x 3 ) = 22D.2 x 3 = 22 PLEASEEE HELP: You can find twenty-one preserved Victorian houses at the _____ Row National Historic District.Officers'Militias'Veterans' In one year, Linda's parents spend $2400 on cable and internet service. If they spend the same amount each month, what is the resulting monthly change in the family's income? * what is the conclusion of Rutherford atomic model? How do you name the median of this triangle? The inside window pane in your house feels very cold to touch on a winter night. How does the heat transfer?Question 9 options:A. Heat transfers from the window pane to your hand.B. Heat transfers from your hand to the window pane. What is difference between a backdoor, a bot, a keylogger, and psyware,a nd a rootkit? Can they all present in the same malware? brunomendez878788cano Evaluate the extent to which South Asian belief systems experienced change during the period 1450 to 1750 CE?? The length of a rectangle is three times the width. The perimeter of the rectangle is 72 cm. Find the dimensions of the rectangle. Earth's gravity can act in many different ways.How might Earth's gravity affect an object?OA. It may cause the object to remain motionless.OB.It may change the direction of the object's motion.OC. It may cause the speed of the object to increase.OD.all of these Definition: A group of steps or events that are in order is called a Roman civilization began in 509 BC and ended in 476 A.D Roman civilization last show working What is 2 8 10 +(3.5) in decimal form? Show your work Blood has a lower concentration of hydrogen ions than cellular cytoplasm. What does that tell us about the pH? What is the difference between the sum of the measures of the interior angles of a regular hexagon and the sum of the measures of the exterior angles of a regular pentagon Can someone plz explain I would appreciate it the cooldown should last from blank minutes and be done at a low intensityA. 3-5B. 2-3C. 1-2D. 5-10 i found my keys, so we can leave for the beach now. is this simple, compound, or complex