1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
AnnyKZ [126]
4 years ago
10

Refer to the picture below, sorry for constant questions, btw.

Mathematics
1 answer:
grin007 [14]4 years ago
4 0

Answer:

1 inch : 5 yards.

Step-by-step explanation:

Paco's first scale was 2 : 5 which is 1 : 2.5.

Now as the length of the pool on the drawing was reduced from 10 in to 5 ins,  that means the scale was doubled so the answer is:

1 : 2*2.5 = 1 : 5 .

You might be interested in
The sum of the digits of a two digit number is 6 when the numbers are reversed the number decreases by 18
jonny [76]
The number is 42.
4+2=6
42-24=18
4 0
4 years ago
A savings and loan association needs information concerning the checking account balances of its local customers. a random sampl
ch4aika [34]

In this case, since the standard deviation is known and the sample size is less than 30, we will use the t-distribution. The formula for calculating the confidence interval is:

Confidence Interval = X ± t * s / sqrt(n)

Where,

X = sample mean = $664.14

t = t score (taken from standard distribution tables)

s = standard deviation = $297.29

n = sample size = 14

 

At Degrees of Freedom = n – 1 = 13 and 98% Confidence interval, z = 2.65

Substituting the values in the equation:

Confidence Interval = 664.14 ± 2.65 * 297.29 / sqrt(14)

Confidence Interval = 664.14 ± 210.55

Confidence Interval = 453.59 to 874.69

<span>ANSWER: <span>$453.56 < CI < $874.72</span></span>
8 0
4 years ago
Jake needs 7.58 meters of wood to complete a school project. He buy 2.25 meter plank of wood and a 3.12 meter plank of wood. How
castortr0y [4]
The Answer is 2.21 Meters Of Wood, Because 2.25+3.12= 5.37 He needs 7.58 Meters In All, so Subtract.
7.58-5.37=2.21 Meters. that is the amount of wood he still needs. Hopefully its not to difficult for you.
8 0
3 years ago
a video is 20 min long. devin made the video faster 2 times. how many minutes and what fraction is the answer?
larisa86 [58]

Answer:

10 minutes. 1/2

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Kara is building a sandbox shaped like a kite for her nephew. The top two sides of the sandbox are 29 inches long. The bottom tw
Tresset [83]
The wording is unclear without a diagram. As such, there are two possible cases and two possible answers.

Case 1: Diagonal \overline{DB} i<span><span>s formed by connecting the vertices formed by the meeting points of a 25-inch side and a 29-inch side. </span>
</span>Call the intersection point of \overline{DB} and \overline{AC} E. \overline{AC} bisects \overline{DB}, so DE=BE=20\text{ inches}. Since the diagonals of a kite are perpendicular to each other, \triangle AED and \triangle CED are both right triangles. One has a hypotenuse of 29, and the other has a hypotenuse of 25, but both share a leg of 20. Using the Pythagorean Theorem, we can get that the length of the other leg in the triangle with a hypotenuse of 29 is 21. Similarly, for the triangle with a hypotenuse of 25, the other leg has a length of 15. Together, these legs make up \overline{AC}, meaning AC=21+15=36 \text{ inches}, our final answer.

Case 2: Diagonal \overline{DB} i<span>s formed by connecting the vertices formed by the meeting points of the sides with equal lengths. 
</span>Call the intersection point of \overline{DB} and \overline{AC} E. We will focus on two triangles, namely \triangle ADE and \triangle ABE. Since diagonals intersect perpendicularly, these triangles are right triangles. One of them has a hypotenuse of 29, and the other has a hypotenuse of 25. They both share a leg that is half of \overline{AC} because \overline{DB} bisects \overline{AC}. Let AE=y and the non-shared leg of the right triangle with a hypotenuse of 29 equal x. Since DB=40, the non-shared leg of the other right triangle (the one with a hypotenuse of 25) has a length of 40-x. Using the Pythagorean Theorem, we can get the equations x^2+y^2=29^2 and (40-x)^2+y^2=25^2. These can simplify to x^2+y^2=841 and 1600-80x+x^2 + y^2=625. Isolating the term y^2, we can get y^2=841-x^2 and y^2=625-x^2+80x-1600. The latter can simplify to y^2=-975-x^2+80x. Using substitution, we can combine the two equations into one and get 841-x^2=-975-x^2+80x. We can simplify that to 80x=1816, meaning x=22.7. However, we are looking for 2y (y is only half of \overline{AC}). We can solve for y using the Pythagorean Theorem and the triangle with a hypotenuse of 29 and a leg of 22.7. We get y \approx 18.05, meaning \overline{AC}=2y \approx 36.1 \text{ inches}, our final answer.
3 0
4 years ago
Read 2 more answers
Other questions:
  • The value of 2 in 123,342 is how many times greater than the value of 2 in 34,128
    5·1 answer
  • Write 10+0.06+0.008 in word form
    13·2 answers
  • The plumber finished 3 jones on tuesday. the first two only cost the owner the $45 trip fee because they took very little time t
    9·1 answer
  • A builder could get 6 sheets of sheetrock for $9. If he bought 12 sheets, how much money would he have spent? sheets 6 12 money
    7·1 answer
  • Que obtienes al sustituir letras por números determinados
    6·1 answer
  • (b) 3m - 2n=19<br> 5m + 7n=11​
    10·1 answer
  • Crystal made a wonderful Christmas tree for her math teacher (a great thought during this hot stretch J ). She used the first 7
    12·1 answer
  • Find the number that belongs<br> in the green box.<br><br> Round your answer to the nearest tenth.
    7·1 answer
  • Hi!<br>Tell how many significant figures this number contains:<br><br>0.0500
    8·1 answer
  • S) A $4.00 sales tax is charged for a $50.00 purchase. At this rate, what is the sales tax for a $1200.00
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!