Answers
Related Questions
The work of a student to solve the equation 3(3y − 8) = 10 + 3y is shown below:
Step 1: 3(3y − 8) = 10 + 3y
Step 2: 6y − 5 = 10 + 3y
Step 3: 3y − 5 = 10
Step 4: 3y = 15
Step 5: y = 5
In which step did the student first make an error and what is the correct step?
Step 2: 9y − 24 = 10 + 3y
Step 2: 6y + 11 = 10 + 4y
Step 3: 6y − 8 = 3(6 + y)
Step 3: 3(3y − 8) = 7 + y
Answers
Escribe 2 ejemplos de enunciados que establezcan una regla de correspondencia que represente una función y
represéntala con un diagrama de flechas.
Answers
Answer:
Correspondencia entre conjuntos:
a) Inyectiva: es cuando a cada imagen en el conjunto de llegada le corresponde un único origen, es decir, a distintos elementos del conjunto inicial, les corresponden distintos elementos del conjunto final.
b) Sobreyectiva: es si todos los elementos del conjunto final tienen al menos una correspondencia del conjunto inicial
c) Biyectiva: es cuando la correspondencia es inyectiva y sobre inyectiva a la vez
Correspondencia unívoca : es una correspondencia donde cada elemento del conjunto origen se corresponde con solo un elemento del conjunto de llegada.
Correspondencia biunívoca es cuando a cada elemento del conjunto origen se corresponde con solo un elemento del conjunto llegada, y viceversa
Step-by-step explanation:
In 2010, the number of clown costumes sold at a single costume shop was 15. By 2015, that number had grown to 30. Assuming a constant increase in clown costume sales, calculate the unit rate of change (slope) from 2010 to 2015.
what's the answer please
Answers
Answer:
2009
Step-by-step explanation:
because 30434+3439438=34343434837 so that means its 2009
a maintence worker is replacing worn rope on 6 flagpoles.The worker needs 40 feet of rope for each flagpole.At the hardware store,rope is sold by the yard.how many yards of rope does the worker need to buy for all flagpoles
Answers
Answer: 80
Step-by-step explanation:
Do 6 x 40=240 to find the amount of rope needed in ft
Do 240 divided by 3 to convert to yards
Find the area of each figure
Answers
a = 20, b = 9, h = 21/-16
20+9/2 * (21-16) = 29/2 * 5 = 72.5
The area of the trapezoid = 72.5 in^2
Area of the rectangle = l * w
l = 16, w = 20
16 * 20 = 320
The area of the rectangle: 320 in^2
PLEASE HELP
FIRST ONE TK ANSWER
GETS BRAINLIEST Choose the number that shows the value of the expression 3 x (6 + 1.4) -42
A. 3.4
B. 6.2
O C. 11.4
D. 14.2
MAKE SURE TO LOOK AT THE PHOTO I HAVE PUT
Answers
Answer:
B. 6.2
Step-by-step explanation:
The calculation is done by hand and verified by a TI-84 calculator.
Kei buys a table and 12 chairs. Each chair cost the same price. The table cost $165. The total cost for the table and 12 chairs is $ 465. What is the cost of one chair?
Answers
Answer:
[tex]165 + 12c = 465[/tex]
Is the right answer
Answer:$25 per chair
Step-by-step explanation:
It’s $165 for only the table. Minus that from the $465 and you get $300. Do $300 divided by 12(amount of chairs) And you get $25. It’s $25 per 1 chair.
I need help with this question-
36. Cone A is similar to Cone B with a scale factor 3:5. If the surface area of Cone B is 725 ft^2, find the surface area of Cone A.
Answers
Answer:
uhh 7 maybe?
Step-by-step explanation:
i dont know
Find the missing side of each triangle
I can’t remember the steps to doing this/the formula, an explanation would be great thanks!
Answers
Step-by-step explanation:
Pythagorean theorem
a^2+b^2=c^2
2^2+6^2=x^2
4+36=x^2
40=x^2
[tex]\sqrt{40}=x[/tex]
[tex]2\sqrt{10}[/tex][tex]=x\\[/tex]
Hope that helps :)
Answer:
sqrt(40) or approx. 6.324555
Step-by-step explanation:
a^2 + b^2 = c^2 (Pythagorean Theorem)
6 is a, 2 is b, and x is c, or the hypotenuse.
Plug in the values
6^2 + 2^2 = x^2
Simplify
36 + 4 = x^2
40 = x^2
Square root both sides
sqrt(40) = x
A snack recipe calls for 5 3/4 cups of cereal and 3 5/12 cups less of raisins. How many total cups of snack mix does the recipe make? Write in simplest form.
Answers
Answer:
10 1/12 cups
Step-by-step explanation:
Ok, so since we know that the recipe calls for 5 3/4 cups of cereal we can go ahead and say it's at least that much.
Then we have where it says there are 3 5/12 less cups of raisins we need to subtract this from 5 3/4 cups and we get 2 4/12 of raisins.
Final equation: 5 3/4+2 4/12= 10 1/12 cups
Hope this helps!!
At a bookstore Mrs.McIntyre buys three books, one for each of her children. Each book cost the same amount. She also buys $1.50 magazine for herself. Her purchases have a total price of $13.47. The equation 3x+1.50=13.47 models this situation. Solve this equation for x. Explain what this value of x means in terms of the bookstore purchases.
Answers
Answer:
X= $3.99
Step-by-step explanation:
X is the value of each book
Answer:
x=3.99
Step-by-step explanation:
3x + 1.5= 13.47
3x + 1.5 - 1.5 = 13.47 - 1.5
3x = 11.97
3x/3 = 11.97/3
HOPE THIS HELPSSS
What is the value of the exponential expression below?
36 1/2
Answers
Answer:
D. 6
Step-by-step explanation:
[tex]36 {}^{ \frac{1}{2} } = \sqrt{36} = 6[/tex]
In a different game, the probability of correctly guessing which of 5 boxes contains a tennis ball is 1/5. About how many winners would be expected if 60 contestants play the game?
Answers
60/5 = 12
Answer:
12
Step-by-step explanation:
solve the proportion for x. 12/x = 15/24
Answers
Answer:
i think x is 19.2
Step-by-step explanation:
solve x by cross multiplying
Help pls i'm lost i really need help
Answers
What is the range for the set of data?
A. 4
B. 6
C. 3.5
D. 0
I don’t want a link, so if you were gonna send one, ignore this instead
Answers
Find q. q/32=6 q=? Help
Answers
Answer:
q=0
Step-by-step explanation:
Hope this helped!!
the answer is 192
Step-by-step explanation:
q/32 = 6
q = 192
Anna charges $8.50 an hour to babysit how long will it take to make $51.00
Answers
Answer:
6 hours
Step-by-step explanation:
$51.00 ÷ $8.50 = 6 hours
hope this helps ! :))
Amar and his friends went to a movie at 3:55 P.M. The movie ended at 5:30 P.M.
How long was the movie?
The movie was
hour(s) and
minutes.
Amar got home 45 minutes after the movie ended.
What time did Amar get home?
Complete the explanation for how you found your answer.
You need to find
minutes after 5:30 P.M.
5:30 to 6:00 is
minutes, so 15 minutes more is
:15.
Answers
Answer: the movie was 1 hour and 35 minutes and Amar got home at 6:15 P.M.
Step-by-step explanation:
to find out how long the movie was you have to find the distance between the time frames 3:55 and 5:30.
3:55+1 hour= 4:55
4:55+5 minutes= 5:00
5:00+30 minutes= 5:30
Add the times to find how long the movie was.
This is how I found how long the movie was.
To find out when Amar got home you have to do the same thing as well.
5:30+30 minutes= 6:00
6:00+15 minutes= 6:15
Hope this helps!
Factor 16a + 10.
(Please help)
Answers
Answer:
2(8a+5)
Step-by-step explanation:
To factor means to find a number that can divide all the terms in the expression and leave whole number quotients. The factor is written outside the bracket while the quotients are written inside the bracket. In the question, 2 can divide both 16a and 10 giving 8a and 5. This is how the answer was obtained.
= 2(8a+5)
hope it helps
Two hundred sixty students were surveyed on whether they prefer apple juice or orange juice. A table of relative frequencies is shown. How many more girls prefer apple juice than boys?
Answers
Answer:
91
Step-by-step explanation:
Write the decimal 0.0768 in words
Answers
Answer:
seven hundred sixty eight ten thousandths
Step-by-step explanation:
Answer:
Seven hundred sixty-eight ten-thousandths
mark me as brainliest plz
The area of a rectangle is 56 square inches the rectangle is 8 inches long how wide is the retangle
Answers
Answer:
7 inches
Step-by-step explanation:
56/8=7
Area/length=width
Find the sum of 3/4 and 5/10 pls
Answers
Answer:
Is it 1.25
I hope the helps!
Answer:
5/4 or decimal- 1.25
Step-by-step explanation:
3/4+5/10
=3/4+5/10
=3/4+1/2
=3/4+2/4
=3+2/4
=5/4
Which graph and equation shows a proportional relationship between r and y? y= 11.5% y = 1.5x - 1.5
Answers
Answer:
y = 1.5x - 1.5
Step-by-step explanation:
Model and Solve Equations with Geometry Concepts (7.11c) . ... Now substitute the values for x and y into the expression. 2(1. 3. )(1. 2. −3) ... 10.0+1.5 = 11.5.
What is the approximate volume of a cylinder with a radius of 7 cam and a height of 4 cm
Answers
Answer:
volume =
[tex] {7}^{2} \times 3.14 \times 2 \times 4[/tex]
Step-by-step explanation:
volume =area of the base circle × height
Help!
This is the problem
1+10k+1-7k
Answers
Answer:
3002
Step-by-step explanation:
Very simple, just add them up.
Which of the quadratic equations below has solutions of x = 8 and x = -2?
F. x2 + 6x = 16
G. x2 + 6x = -16
H. x2 – 6x = 16
J. x2 – 6x = -16
Answers
HELP! LOOK AT THE PHOTO
Answers
Answer:
The answer to the question provided is 30.
Step-by-step explanation:
[tex]5x - 80 + 2x + 50 = 180 \\ 7x - 30 = 180 \\ \frac{ \: \: \: \: \: \: + 30 = + 30}{ \frac{7x}{7} = \frac{210}{7} } \\ x = 30[/tex]
[I apologize if the answer to the question is inaccurate]
Answer: 30
Step-by-step explanation:
Brainliest for correct answer, any inapplicable answer or absurd answer will be deleted and reported.
Answers
Answer:
35+70=105, 180-105=75 so the answer is c 75°
Step-by-step explanation: