Find each unit rate. Round to the nearest hundredth if necessary
Answer:
the answer: 30 people per class
What is the equation of a circle with radius 2 and center (3, 1)
Answer:
[tex](x - 3) ^2 + (y - 1)^2 = 4[/tex]
Find 85% of the volume of a cube of side 12cm.
Answer:
10.2
Step-by-step explanation:
50% of 12= 6
10%= 1.2
30%= 3.6
5%= 0.6
50%+30%+5%= 6+3.6+0.6=10.2
which expression is equivalent to -10x-10+2x+9?
Please help me to solve this question as soon as possible
Answer:
set of M is {r,s,t}...........
What is the time on this clock?
Answer:
10;30
Step-by-ste1p explanation:
State the equation of the line described.
A line passes through the point (-2,8) and is perpendicular to the line y = -3x + 3.
thank you guys!
Answer:
y = mx + b
Since it is perpendicular to the given line, its slope is the negative reciprocal of the slope of the given line.
Slope of given line:
m0 = -a/b = -(-3) / (1) = 3
Slope of perpendicular line:
m = -1/3
y = (-1/3)x + b
Use the given point to find b.
2 = (-1/3)(3) + b
2 = -1 + b
b = 3
y = (-1/3)x + 3
Step-by-step explanation:
Answer:
Step-by-step explanation:
Perpendicular lines have their slope negative reciprocal
y= -3x +3 has the slope -3
y = (1/3)x +b is the line that is ⊥ so it has the slope (1/3)
The line passes trough the point (x=-2, y=8) so substitute the x and y to find b
8 = (1/3)(-2) +b, multiply (1/3)(-2) = -2/3 and add 2/3 on both sides
8+(2/3) = b, find the common denominator and add the fractions
[(3*8)+2 ]/3 =b
(26/3) = b
The equation of the line described is y= (1/3)x +(26/3)
what property do you use first in an algibra expretion
Answer:
BIDMAS
Step-by-step explanation:
In order to solve equations correctly, we use BIDMAS ( Brackets, Indices, Division, Multiplication, Addition and Subtraction).
For example, if we have 5+2x7, we would multiply 2 by 7 first, then add 5 to the value.
12.4 x 2/8 need help
Answer: 3.1
Step-by-step explanation:
Firstly, let's put 2/8 as a decimal. If we simplify 2/8, it would be 1/4. And what is the decimal of 1/4? 0.25
Now that we've got our decimals it would be easier to calculate.
12.4 * 0.25 = 3.1
There are 6 triangles and 5 squares.
What is the ratio of squares to
triangles?
Answer:
5:6
Step-by-step explanation:
Ratio means proportions.There are many rules of it
[tex]\\ \sf\longmapsto a:b::c:d[/tex]
[tex]\\ \sf\longmapsto \dfrac{a}{b}=\dfrac{c}{d}[/tex]
[tex]\\ \sf\longmapsto ad=bc[/tex]
Charlie's age is 3 years less than twice Rylie's age. The sum of their ages is 30. Find their ages.
Answer:
Jan (x) is 19 and Tritt (y) is 11.
Step-by-step explanation:
2(11)-3 = 22-3 = 19 years old.
A basketball team scored a total of 1470 points over the course of its 21-game season. 470 of the points were from 1-point baskets. The remaining points were either 2-point or3-point baskets.
There were 440 2-point or 3-point
baskets scored. How many of those 440 baskets were 3-point baskets?
i'll give you the brainliest!! it's not hard
will give brainliest answer
Answer:
5/7
Step-by-step explanation:
:) hope this helps
Please solve the math problem for me... I will mark you brainliest
does anyone know how to do this asap! with a full explanation please !!! thank you have a great day !!
Answer:
60 degrees
Step-by-step explanation:
I see 3 lines in the graphic.
1 horizontal line that gets crossed by 2 other lines - one at a 25 degree angle (and that line ends at the crossing point), and one at 60 degrees.
so, above and below the horizontal line, the line with 60 degrees and x degrees is the same line.
and therefore, as per the laws of crossing lines, the angles above and below the crossed line must be the same. they are just left-right mirrored.
therefore, x must be the same as the diametrically opposing angle above the horizontal line. and that is 60 degrees.
(DO NUMBER 7 ONLY)
7. Tropical Storm Ava brought heavy rain to
Galveston, TX. The table shows the linear
relationship between the total inches of rainfall
and time in hours. Calculate the rate of change
of rainfall per hour.
12
6
18
24
Hours
Rain (inches)
13.5
a
18
4.5
The average cost of a loaf of bread in 1950 was approximately 12 cents, and by 1990 the cost was about 70 cents. Which linear equation models the increase of the price of a loaf of bread? (Let x represent the number of years since 1900.)
1950:12
1990:70
70-12:58
58/40:1.45
1.45x40 :58
cada año le sumaban 1.45 a la barrita de cereal
saben que no me hagan caso ni yo se que acabo de hacer xd
Thus, the linear equation models the increase in the price of a loaf of bread will be 50x+12=70.
What is a linear equation?It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.
If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.
It is given that, the average cost of a loaf of bread in 1950 was approximately 12 cents, and by 1990 the cost was about 70 cents.
(Let x represent the number of years since 1900.)
The linear equation models the increase in the price of a loaf of bread will be.
y = bx + +c
70 = 50x + 12
The linear equation models the increase in the price of a loaf of bread will be 50x+12=70.
Learn more about the linear equation here:
brainly.com/question/11897796
#SPJ2
A rectangle has an area of 513.5m2. One of the sides is 7.9m in length. Work out the perimeter of the rectangle.
I will give top answer to first person who can answer and explain.
Answer:
P=145.8m
Step-by-step explanation:
Answer: The perimeter is 145.8 square meters
Step-by-step explanation:
Area=513.5 square meters
513.5=l (length) times w (width)
513.5= 7.9 times w
513.5= 7.9w
(DIVIDE 513.5 AND 7.9 BY 7.9)
65= w
Perimeter= 2l + 2w
Perimeter=2(7.9) + 2(65)
Perimeter=15.8 + 130
Perimeter=145.8 square meters
The product of the ages of all teenagers at Joyce’s birthday party last Saturday was 2971987200. The number of 18 year olds who attended the party was?
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Question 1128242: The product of the three ages, in years of three teenagers is 4590. None of the teens are the same ages. What are the ages of the three teen ages? (Use guess and check)
A hat and a jacket cost $100. The jacket cost $90 more than the hat. What are the cost of the hat and the cost of the jacket?
Melody picks a number. She doubles the number, squares are result, divide the square by 3 subtracts 30 from the quotient and gets 18. What are the possible numbers that Melody could have picked? What operation does Melody perform that prevents us from knowing 100% certainly which she picked?
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Answer by greenestamps(9721) About Me (Show Source):
You can put this solution on YOUR website!
These are three very different problems. The rules of the forum are one problem per post. Please follow those rules in the future.
(1) Certainly guess and check is the easiest way to solve this problem, since you know the three ages are whole numbers. But you should be able to get to the solution with very few if any wrong "guesses" by making your guesses logically.
The product of the three ages is a multiple of 10, and therefore a multiple of 5; since all three ages are in the teens, one of them has to be 15. Then 4590/15 = 306.
You could do guess and check again from there. However, if you note that both the other ages have to be greater than 15, and you know the last digit of the product has to be "6", then the only possible pair of ages is 17 and 18. And indeed 17*18 is 306.
ANSWER: The ages are 15, 17, and 18.
(2) Here is an informal solution method using logical reasoning.
Take away the "extra" $90 that the jacket costs; you are left with a jacket and a hat that each cost the same, and the total is now $100-$90 = $10. That means each of them costs $5. Now add those extra $90 back on to the price of the jacket.
ANSWER: The jacket costs $95; the hat costs $5.
(3) Melody picks a number: Call it x.
She doubles the number: It is now 2x.
She squares are result: It is now (2x)^2 = 4x^2.
She divides the square by 3: It is now 4x^2/3.
She subtracts 30 from the quotient: It is now 4x^2/3-30.
The number she ends up with is 18.
Solve the equation that says 4x^2/3-30 = 18:
4x%5E2%2F3-30+=+18
4x%5E2%2F3+=+48
4x%5E2+=+144
x%5E2+=+36
x+=+6 or x+=+-6
ANSWER: The two possible starting numbers are 6 and -6. We get two possible answers because of the step where she squares the number.
Answer:
7 18-year olds
Step-by-step explanation:
The product is 2,971,987,200. 18^7 is 612,220,032. However, 18^8 is 11,019,960,576, which is too big. So, 7 is the answer
Share £880 into the ratio of 3:1
Answer:
660:220
Step-by-step explanation:
Twice a number is 26?
Answer:
13x2 is 26
Step-by-step explanation:
Answer: The answer is 13.
Step-by-step explanation: This is because if you set up the equation
2x = 26 then you divide by 2 on each side, this would leave you with x = 13 which is the answer.
Dani's Delicious Donuts recipe calls for 434 cup of flour per batch of cookies. If you
want to make 1.5 batches, how many cups of flour do you need?
Question 4
2.5 pts
A pitcher on a baseball team is practicing his fast ball and trying to ensure he hits the strike zone.
He consistently releases the ball at 5.5 feet high while he is pitching. The pitcher must aim for the
ball to hit the ground approximately 50.4 feet from the pitcher's mound in order to stay in the strike
zone. At what angle of depression, to the nearest tenth of a degree, must he release the ball?
Answer:
Step-by-step explanation:
I love you
Antonia bought a set of dishes, a towel, and a candle at a housewares store. The set of dishes cost $35.02, the towel cost $21.43, and the candle cost $9.59 before any coupons or discounts.
She used a $0.50-off coupon on the candle, a $2.75-off coupon on the towel, and the set of dishes was on sale for 10% off the regular price. Which of the following best describes the amounts that Antonia saved?
Answer:
Antonia saved $5.39
Step-by-step explanation:
Candle:
$9.59 - $0.50 (coupon) = $9.09
Towel:
$21.43 - $2.75 (coupon) = $18.68
Dishes:
$21.43 x 10% = 2.143
$21.43 - $2.143 = $19.287, rounded to the nearest cent and it’s $19.29.
Calculate the amount of money saved by adding 0.50 + 2.75 + 2.143, which is 5.393. Round to the nearest cent and it will be $5.39.
plss help. brainliest for right answer
[tex]5667 \div 59 \\ \\ calculate \: \: the \: \: (approximate \: \: value) \\ \\ = 96.05085 \\ \\ \\ in \: \: alternte \: \: form \\ \\ = \frac{5667}{59} ,96 \frac{3}{59} \\ \\ \\ hope \: \: it \: \: helps[/tex]
what is the aswer ??????
Answer:
A is correct don't you know
what is 2+x/5+x=7/8?
Answer:
x = - [tex]\frac{15}{16}[/tex]
Step-by-step explanation:
2 + [tex]\frac{x}{5}[/tex] + x = [tex]\frac{7}{8}[/tex]
Multiply through by 40 ( the LCM of 5 and 8 ) to clear the fractions
80 + 8x + 40x = 35
48x + 80 = 35 ( subtract 80 from both sides )
48x = - 45 ( divide both sides by 48 )
x = - [tex]\frac{45}{48}[/tex] = - [tex]\frac{15}{16}[/tex]
Can someone explain this to me pls
Answer:
sory i cant explain but tell anser c
Step-by-step explanation:
Si un triángulo tiene de lados 4 y 5 metros y el ángulo entre ellos es de 30°, ¿Cuál es el área de la figura?
25 is the answer id ont know how to explain it