Mathematics High School

A board with 86cm in length must be cut so that one piece is 20cm longer than the other piece .find the length of each piece​

Answers

Answer 1

Answer:

33cm ; 53 cm

Step-by-step explanation:

Let the length of one piece = x cm

Length of the other piece = (x + 20) cm

x + ( x+ 20) = 86 cm

x + x + 20  = 86

     2x + 20 = 86

              2x = 86- 20

             2x = 66

               x = 66/2

                x = 33 cm

Length of the longer piece = x + 20 = 33 +20 = 53 cm

Related Questions

help please im so bad at these

Answers

Answer:

i'm not sure if this is right, but this is what i got from a calculator. steps are shown in the pictures.

Step-by-step explanation:

URGENT I copy and pasted and clicked the link that is going around and I was redirected however I did not download the file can someone give me answers on what will happen to my computer?

Answers

Answer: A virus or trojan will appear because my cousin actually click on the link and downloaded it and it damaged her device so don't download it those are bots who tell you to click the file or something so don't download it or your computer will be damaged

Step-by-step explanation:

2 numbers a and b vary directly if ab =k, k is a constant is it correct​

Answers

Answer:

No, because 2 variables vary directly only if: a = k x b OR b = k x a, being "k" the constant

Step-by-step explanation:

See above

What is the value of this expression? 44−{(6+8)÷2}×3

14

23

69

111

Answers

Answer:

23

Step-by-step explanation:

First, open the brackets.

44 - (14/2) x 3

44 - 7 x 3

44 - 21

23

how long would it take the snail to crawl 65 inches
a 60
b 6.5
c 6
d 65

Answers

Answer:

6 minutes is the most reasonable time to crawl 65 inches.

The answer is 6 minutes

I need help pleaseeeeeeeeee

Answers

Answer:

D

Step-by-step explanation:

Answer: ba

Step-by-step explanation:

Ruby visiting San FranciscoFrom her hotel walks 1 block west and 2 blocks south to a coffee shop. Then she walks 6 blocks east and 5 blocks south to a museum.Where is the museum relation to her hotel?

PLS ANSWER THIS ASAP

Answers

According to graph museum is 5 blocks East and 7 blocks East from Ruby’s hotel.

if the sum of the interior angles of a polygon is 2340, how many sides does the polygon have?

Answers

Answer:

15

Step-by-step explanation:

Where n represent no.of sides

(2n-4)90=2340

180n-360=2340

180n=2340+360

180n=2700

n=15

Belinda went biking on Saturday and rode for 6\frac{4}{5} miles on Sunday she rode for \frac{2}{3} of the distance she rode on Sunday

Answers

Complete question :

Belinda went biking on Saturday and rode for 6 4/5 miles. On Sunday she rode for 2/3 of the distance she rode on Saturday. Write and solve an equation that will help you figure out how far Belinda rode on Sunday

Answer:

4.5333 miles

Step-by-step explanation:

Number of miles biked on Saturday = 6 4/5 miles

Miles on Sunday = 2/3 of miles biked on Saturday

To obtain the distance biked on Sunday :

Fraction of miles biked on Sunday * miles biked on Saturday

Miles biked on Sunday = 2/3 * 6 4/5

Miles biked on Sunday = 2/3 * 34/5

Miles biked on Sunday = (2 * 34) / (3 * 5) = 68/15 = 4.5333 miles

Do the ratios 6:4 and 4:3 form a proportion

Answers

Answer:

no

Step-by-step explanation:

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████████████████████████

Answers

Oh what the heck UHHHHH

Answer:

wow that is so cool how do you do that

Step-by-step explanation:

Help meeeeeee no links plz you are very kind I really appreciate people like you.

Answers

Answer:

225 ft²

Steps:

(20×10)+5² = 200+25 = 225 ft²

Answer: 225ft^2

Step-by-step explanation:

what is 18k+3

asking for a friend

k as in the letter not 18,000

Answers

factor 3 out of 18k+3.

3(6k+1)

Would be great if someone could solve this for me I’m not too sure how to do it .

Answers

I think the answer is

Need help with this!!​

Answers

Answer:

is it d?

Step-by-step explanation:

pls help me out!!! ((#4))

Answers

Pythagorean Therom
a^2 + b^2 = c^2
5^2 +b^2 = 7^2
25=b^2 = 49

49-25=b^2

49-25=14

b^2=24

b=sqrt24

sqrt24=4.89898

a local taxi company charges a base fare of $3.20. the taxi company charges $0.40 for every minute the taxi is in service

Answers

Answer: The equation would be x = 3.20 + 40m where m represents the minutes of service and x is the total cost.

Step-by-step explanation:

Given in the figure below, find the values of X and Z.

Answers

Answer:

x = 6 , z = 79

Step-by-step explanation:

(8x + 53) and (6x + 43) are adjacent angles and sum to 180° , that is

8x + 53 + 6x + 43 = 180 , that is

14x + 96 = 180 ( subtract 96 from both sides )

14x = 84 (divide both sides by 14 )

x = 6

Then

6x + 43 = 6(6) + 43 = 36 + 43 = 79

z and 79 are vertical angles and congruent , then

z = 79

Answer:

x = 6

z = 79

Step-by-step explanation:

We know that angles on a straight line add up to 180.

With this in mind:

(6x+43)° + (8x+53)° = 180hence 14x+96=18014x=84x=6

For z:

since x = 6(8x+53)° + z° = 180101 + z = 180z = 79

Another approach using the property where opposite angles are equal:

(6x+43) = z79 = z

the diameter or a circle is 2 yards. What is the circles circumference
use 3.14 for π​

Answers

Answer:

diameter = 6.28 yards

Step-by-step explanation:

2 x 3.14 = 6.28

Write an equation in slope-intercept form for a line with a slope of -2 that goes through the point (-5,6). show steps?

Answers

Answer:

y=-2x-4

Step-by-step explanation:

y-y1=m(x-x1)

y-6=-2(x-(-5))

y-6=-2(x+5)

y=-2x-10+6

y=-2x-4

Find the area of the trapezoid !! Help pls!

Answers

Answer:

The area would be 80

3/4+(1/3divided by 1/6)-(-1/2)=
HURRY pls i need a answer ASAP

Answers

Answer:

Step-by-step explanation:

Answer:

3.25

Step-by-step explanation:

please help!! need answers ASAP

Answers

Answer:

10 minutes

Step-by-step explanation:

I'm not sure if im correct, so im sorry if im wrong.

An airplane leaves Edmonton International Airport and Flies south to Phoenix Arizona. The flight is 6h in duration and distance is 2800Km

A.) Write an equation that represents this flight.


PLEASE HELP FAST 20 POINTS!

Answers

2800/6=A hope it helps

A rectangular prism has a volume of 750 cubic millimeters. Its length is 15 millimeters, and its width is 10 millimeters. What is its height?

50 mm
5 mm
6 mm
60 mm

Answers

Answer:

5mm

Step-by-step explanation:

The answer is 5mm I think

Please help thank you.

Answers

Answer:

IM LOST!!!!

Step-by-step explanation: IM LOST!!!!

Choose Yes or No to tell if the fraction 58 will make each equation true. 815−□=37 Yes □−516=58 No 78−12=□ No 34−18=□ Yes

Answers

Answer:

815−58=37  False

58−516=58 False

78−12=58 False

34−18=58 False

Step-by-step explanation:

i just did them all on my algebra calculator and they all said false. brainliest please?

PLEASE HELP IM TIMED NO LINKS :((((((( HELPPPPP

Answers

1) 56 students

2) 92 students

3) 20 students

4) 16

5) 14

6) 164

Hope this helped!

Mark brainliest if you want<3

9) Is 0 a solution to 3x + 8 = 5x + 8? Explain or show your reasoning .​

Answers

Answer:

x=0, yes.

Step-by-step explanation:

3x+8=5x+8

5x-3x+8=8

2x+8=8

2x=8-8

2x=0

x=0/2

x=0

Answer: yes

Explanation: To decide whether 0 is a solution for

this equation, we can simply plug a 0 in for x.

If the statement holds true, then 0 is a solution.

Plugging in 0 for x, we have 3(0) + 8 = 5(0) + 8.

Now since anything times 0 is 0, we have 8 = 8.

Since 8 = 8 is a true statement, 0 is a solution.

Joel has a goal to practice his clarinet for 4 ½ hours per week. The list below shows the number of hours Joel has practiced so far this week.

Answers

Answer:

3/4 hours

Step-by-step explanation:

Joel has a goal to practice his clarinet for 4 1/2 per week. The list below shows the number of hours Joel has a practiced so far for the week. Monday 1 1/2 hours Wednesday 1 1/4 hours Thursday 1 hour. How many more hours does he need to practice this week to meet his goal?

Total practice hours per week = 4 1/2 hours = 9/2 hours

Hours of practice so far for the week:

Monday = 1 1/2 hours = 3/2 hours

Wednesday = 1 1/4 hours = 5/4 hours

Thursday = 1 hour

Total = Monday + Wednesday + Thursday

= 3/2 + 5/4 + 1

= (6+5+4)/4

= 15/4 hours

How many more hours does he need to practice this week to meet his goal

Hours needed to meet goal = Total practice hours per week - Hours of practice so far for the week

= 9/2 - 15/4

= (18-15)/4

= 3/4 hours

Hours needed to meet goal = 3/4 hours

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