Answers
Answer:
first
Step-by-step explanation:
half of right angle
Related Questions
Un arquitecto ha pagado en un corralón un total de $ 130 por 20 Ladrillos, 5 kg de Arena y 10 kg de Cemento. Calcular el precio de cada articulo, sabiendo que 1 kg de Cemento cuesta el triple que 1 Ladrillo y que 1 kg de Arena cuesta igual que 4 kg de Cemento más 4 Ladrillos. Siendo: número de ladrillos y: kg de arena kg de cemento
Answers
Answer:
1 ladrillo cuesta 1 dólar. 1 brick costs 1 dollars.
1 kg de cemento cuesta 3 dólares: 1 kg cement costs 3 dollars
1 kg de arena cuesta $ 16: 1 kg sand costs $ 16
Step-by-step explanation:
Spanish
Deje que los ladrillos, la arena y el cemento se denoten por b, sy c. Luego, de acuerdo con la condición dada
20b + 5s + 10c = $ 130 --- ecuación 1
1c = 3b ------ ecuación 2
1s = 4c + 4b ------ ecuación 3
Poniendo la ecuación 2 en la ecuación 3
1s = 4 (3b) + 4b
1s = 16b ---------- ecuación 4
20b + 5s + 10 (3b) = $ 130
50b + 5s = 130 --- ecuación 5
Poniendo la ecuación 4 en la ecuación 5
50 b + 5 (16b) = 130
50 b + 80b = 130
130 b = 130
b = 130/130 = $ 1 ------- ecuación a
1 ladrillo cuesta 1 dólar.
Poner el valor de costo de 1 ladrillo en estas ecuaciones
1c = 3b ------ ecuación 2
1s = 4c + 4b ------ ecuación 3
1c = 3 (1) = $ 3 -------- ecuación b
1 kg de cemento cuesta 3 dólares
1s = 4c + 4b
1 s = 4 (3) + 4 (1)
1 s = 12 + 4
1s = $ 16 ------ ecuación c
1 kg de arena cuesta $ 16
Poner valores de la ecuación a, b, c en la ecuación 1
20b + 5s + 10c = $ 130
20 (1) + 5 (16) + 10 (3) = 130
20 + 80 + 30 = 130
130 = 130 ------------ por lo tanto probado
English
Let the bricks , sand and cement be denoted by b, s and c. Then according to the given condition
20b+ 5s+ 10c= $130--- equation 1
1c= 3b------ equation 2
1s= 4c+4b------ equation 3
Putting equation 2 in equation 3
1s= 4(3b) + 4b
1s= 16b---------- equation 4
20b+ 5s+ 10(3b)= $130
50b + 5s= 130--- equation 5
Putting equation 4 in equation 5
50 b + 5 (16b) = 130
50 b+ 80b= 130
130 b= 130
b= 130/130= $1------- equation a
1 brick costs 1 dollars.
Putting the cost value of 1 brick in these equations
1c= 3b------ equation 2
1s= 4c+4b------ equation 3
1c= 3(1)= $3-------- equation b
1 kg cement costs 3 dollars
1s= 4c+4b
1s= 4(3) + 4(1)
1s= 12+4
1s= $16 ------ equation c
1 kg sand costs $ 16
Putting values from equation a, b, c in equation 1
20b+ 5s+ 10c= $130
20 (1) + 5 (16) + 10 (3)= 130
20 + 80 + 30 = 130
130 = 130 ------------ hence proved
Find the slope of the line that passes through (-1,-4) and (3,5) Label the coordinates in the boxes
Answers
Answer: 2.25 or 2 1/4 or 9/4
y2 - y1 / x2 - x1
5 - (-4) / 3 - (-1)
9/4
2 1/4
How many solutions are there to this nonlinear system?
A.Two solutions
B. One solution
C. No solutions
Answers
There’s only one spot where both lines meet to form a common point.
help me please
:)
i really need it
Answers
Answer:
3.5 qt or 3 qt and 2c
Step-by-step explanation:
4 cups makes 1 quart
14/4 = 3.5
Plz help I need help with both. Giving branliest
Answers
Answer:
number 4-
X=11.207
Step-by-step explanation: Caculate the angle of B first. B=105
Then find side a and b
A small box of pens costs $6. A large box of pens costs $8. The table shows the
costs of buying certain numbers of boxes of pens. Which ordered pair represents
the cost of 5 small boxes and 5 large boxes?
Answers
Explanation: Multiple
Rewrite the expression as the sum of two numbers. 10(5 + 3)
Answers
Answer:
10 x 5 = 50 10 x 3= 30 So we could write this as 50 + 30 can be our expression in 2 number
Arbitron Media Research Inc. conducted a study of the iPod listening habits of men and women. One facet of the study involved the mean listening time. It was discovered that the mean listening time for a sample of 10 men was 35 minutes per day. The standard deviation was 10 minutes per day. The mean listening time for a sample of 12 women was also 35 minutes, but the standard deviation of the sample was 12 minutes. At the 0.10 significance level, can we conclude that there is a difference in the variation in the listening times for men and women
Answers
Answer:
No ;
Step-by-step explanation:
Given ;
s2 = 10 ; n2 = 10 ; s1 = 12 ; n1 = 12
Hypothesis :
H0 : σ1² = σ2²
H1 : σ1² ≠ σ2²
The test statistic :
Ftest = s1² / s2² = 12² / 10² = 144 / 100 = 1.44
The Pvalue using the Pvalue from Ftest calculator :
Numerator df = 12 - 1 = 11
Denominator df = 10 - 1 = 9
Pvalue = 0.2969
At α = 0.1
If Pvalue > α ; Fail to reject H0
0.2969 > 0.1 ; Hence, we fail to reject the Null
Hence, we cannot conclude that variation exists
PLEASE HELP I NEED IT TO PASS THIS CLASS
Answers
Answer:
55°
Step-by-step explanation:
Angles x and 125° are linear pair,
So,
x + 125° = 180°
x = ( 180 - 125 )°
x = 55°
Dominique has a movie collection. The types of movies in Dominique's collection are shown in
the circle graph.
Dominique's Movie Collection
Mysteries
30%
comedie
Comedies
25%
Biographies + 10%
Dramas
15%
Cartoons
20%
Dominique has 260 movies in her collection. How many more cartoons, biographies, and
comedies than all other types of movies does Dominique have in her collection?
Answers
Captain Levi once said, "Give up on your dreams and die"
Anyways the answer is 10
Fully simplify the fraction in the photo.
No links.
Answers
x ( x-1 )
———
5
I hope this helps, have a great day!
Fill in the table using this function rule.
y=2+4x
Answers
Answer:
I'm sorry im not sure :-(
Step-by-step explanation:
David drew this diagram of a picture frame he is going to make. Each square represents 1 square inch. What is the area of the picture frame?
Answers
Answer:
64 in²
Step-by-step explanation:
Find the area of the larger rectangle first, and then minus the area of the smaller rectangle.
The length of the larger rectangle
= 9-3 = 6 in
The width of the larger rectangle
= 17-1 = 16 in
The area of the larger rectangle
= 6×16
= 96 in²
The length of the smaller rectangle
= 8-4 = 4 in
The width of the smaller rectangle
= 13-5 = 8 in
The area of the smaller rectangle
= 4×8
= 32 in²
The area of the picture frame
= 96-32
= 64 in²
Stevens rectangle measures 3 1/2 units by 2 1/3 units what is the area?
Answers
yuh just like yuh
... I need help
Answers
Answer:
6
Step-by-step explanation:
Answer:
6
Step-by-step explanation:
In the image, there is only one section that is above 2 1/4 and below 2 3/4, which is 2 1/2. there are 6 crosses on 2 1/2, indicating 6 students
40 people are coming to Tony's party. 20% of them will eat one
hamburger. Hamburgers cost $2.50 each.
How much money will Tony spend on hamburgers?
Answers
Answer:
20$
Step-by-step explanation:
20percentage of 40=1/5×40
=8
Tony spent=8×$2.50=20
Help me and show me how to do it I’m lost
Answers
Answer:
x⁴
Step-by-step explanation:
-16/-4=4
a negative divided by a negative equals a positive
If each serving of the stew will contain 1 4 14 pound of meat, how many servings of the stew can the club make? Enter your answer in the box.
Answers
Complete question :
The line plot shows the weights of packages of meat that members of a club bought. The meat will be mixed with vegetables to make stew for a club dinner. Each serving of the stew contains 1/4 pound of meat. How many servings of the stew can the club make?
Answer:
36 servings
Step-by-step explanation:
From the plot ; we take the sum of total weight of meat packages :
(5/8 * 2) + 6/8 + 1 + (9/8 * 3) + 10/8 + 11/8
10/8 + 6/8 + 8/8 + 27/8 + 10/8 + 11/8 = 72 / 8 = 9 meat packages
Each serving of meat = 1/4
Number of servings the club can make :
Total meat package / pound of meat per serving
(9 ÷ 1/4)
9 * 4/1
= 36 servings
Answer:
36 hope this help
Step-by-step explanation:
8.11 as a mixed number
Answers
Answer:
8 11/100
Step-by-step explanation:
8.11 is the same thing as 8 whole numbers and since the .11 is in the hundreths place, it becomes 11/100.
Topic E: Expressing Operations in Algebraic Form
I NEED THE ANSWER AS SOON AS POSSIBLE
Answers
Answer:
3) 2p - 4
1) 8 - d
2) (d + 9) - 6
3) 1/2(x + s)
Question 3 (1 point)
Find AC. Round to the nearest tenth.
10
1050
12
c
a
AC = 306.1
b
AC = 10.3
ОООО
AC = 17.5
d
AC = 16.6
Answers
Use PEMDAS to evaluate the expression 7 x 6 + 8 − 16 ÷ 4.
Answers
Answer:
7x^6 + 4
Step-by-step explanation:
10
13
16
19
22
25
28
What is the mean?
What is the standard deviation?
What percentage of values should fall between 19 and 22?
Which value has a score of -2?
Answers
Answer:
mean is 19
Step-by-step explanation:
sorry that's all I know
10+13+16+19+22+25+28=133
Now divide it by 7 since there are 7 numbers
133/7=19
Help I got a little confuse here!
Answers
Answer:
its 3a12/25568
Step-by-step explanation:
becuse i want to
= 3 • 2^8
= 768
Help me please ASAP
Liz went on a trip. $80.00, $20.00 plane ticket, and 2 suitcases. How much did each
suitcase cost?
Answers
Answer:
30
Step-by-step explanation:
if im reading the qestuion right
so she had 80 bucks she spend 20 on a ticked so she has 60 left so if im reading it right she spent all of her money so 60 divde by 2 is 30.
hoped this helped!
Write this number in standard form.
sixty thousand twenty-two and five tenths
Answers
Gina deposits $2,000 into each of two savings accounts.
• Account I earns 5% annual simple interest.
• Account II earns 5% interest compounded annually.
Gina does not make any additional deposits or withdrawals. What is the sum of the balances of Account I and Account II at the end of 3 years?
PLS HELP ME. I WILL GIVE 40 POINTS.
Answers
Answer:
Simple interest:
$2000*(1 + 3*0.05) = $2300Compound interest:
$2000*(1 + 0.05)^3 = $2315.25Sum of the balances:
$2300 + $2315.25 = $4615.25Jen received 60%on her science quiz. She got 9 questions correct. How many total questions were on the science test?
Answers
Use the drop down to answer the question about converting to a fraction.How many repeating digits are in ?What value is multiplied on both sides of the equals sign?What fraction represents ?
Answers
The decimal is a repeating decimal, and the actual fraction represented by 0.64⁻ is 64/99
The number of repeating digitsThe decimal number is given as:
0.64⁻
There are two numbers after the decimal point
So, the number of repeating digits is 2
The value multiplied on both sides of the equals signIn (a), we have the number of repeating digits to be 2.
So, the value multiplied on both sides is:
Value = 10²
Value = 100
Hence, the value multiplied on both sides of the equals sign is 100
The actual fractionThe number is the decimal points is 64.
And the value multiplied on both sides of the equals sign is 100.
So, the fraction is:
64/(100 - 1)
This gives
64/99
Hence, the actual fraction represented by 0.64⁻ is 64/99
Read more about repeating decimals at:
https://brainly.com/question/300210
#SPJ2
Answer:
2, 100, 64/99
Step-by-step explanation:
The regular price of a baseball cleats is $80. If the cleats are on sale for 45% off, then:
a) What is the value of the discount, in dollars?
b) What is the final selling price of the cleats, before tax?
Answers
b) The final selling price is 44 dollars