Answer:
C
Step-by-step explanation:
To calculate the left side of the ratio, our calculator multiplies the right side by 14 and then divides the product by 4. To calculate the right side of the ratio, our calculator multiplies the left side by 4 and then divides the product by 14. Answers are rounded to two decimals if necessary.
The ratio of athletes in the two teams is 3:2. After 12 athletes move from first team to second, the ratio is 5:4. Find the number of athletes on each team originally.
Step-by-step explanation:
Let the athletes be 3x and 2x.
Now, By the question we get,
(3x-12)/(2x+12) = 5/4
or, 12x-48= 10x+60
or, 2x = 108
so, x = 54
now
3x= 3×54= 162
2x = 2×54=108
The number of athletes were 162 in first team and 108 in second team originally.
x is the number of athletes on first team originally ( x > 12, x ∈ Nˣ )
y ----------------------------------------second------------------( y ∈ Nˣ )
The ratio of athletes in the two teams is 3:2
⇒ [tex]\frac{x}{y} =\frac{3}{2}[/tex] (1)
After 12 athletes move from first team to second, the ratio is 5:4
⇒ [tex]\frac{x-12}{y+12} =\frac{5}{4}[/tex] (2)
(1),(2) ⇒ [tex]\left \{ {{\frac{x}{y} =\frac{3}{2}} \atop {\frac{x-12}{y+12} =\frac{5}{4}} \right. <=>\left \{ {{x=162} \atop {y=108}} \right.[/tex]
So: The first team originally has 162 numbers and the second team originally has 108 numbers
ok done. Thank to me :>
Write the equation of the line that passes through the points (8,−7) and (−9,7). Put your answer in fully reduced point-slope form, unless it is a vertical or horizontal line.
Answer:
y + 7 = (-14/17)(x - 8)
Step-by-step explanation:
We want the equation of this line in the point-slope form y - k = m(x - h).
We are given two points (8, -7) and (-9, 7), and may arbitrarily choose one of them to serve as the point (h, k) in the point-slope form shown above. Then the other point is represented by (x, y) in the point slope form shown above:
Let (h, k) be 8, -7) and let (x, y) be (-9, 7). Then, y - k = m(x - h) becomes:
7 - (-7) = m(-9 - 8), so that 14 = m(-17), and the slope is thus m = -14/17
The desired equation is then y + 7 = (-14/17)(x - 8) (which is in point-slope form).
Another way to get this result would be to find m in the usual way:
rise 14
m = ------------- = --------- = -14/17 (same as before).
run -17
when keisha installed a fence along the 200 feet perimeter of her rectangular back yard she left and opening for GATE in diagram below she used X to represent the length of the gate
Perimeter of her rectangular back yard is: 200 ft
⇒ 2(30 + 60 + x) = 200
⇒ 30 + 60 + x = 200/2 = 100
⇒ 90 + x = 100
⇒ x = 100 - 90 = 10
ANSWER: A.10
Ok done. Thank to me :>
Answer the following questions.
Answer:
Thanks for the questions
what’s the area of this figure? lol i have no idea helppp
Answer:
285
Step-by-step explanation:
For the top section, we can portion out 20 x 8 = 160.
Next, directly in the middle is a 5 x 5 square = 25.
Finally, we have a right triangle with dimensions 10 x 20 so the area would be 10 x 20 / 2 = 100.
160 + 25 + 100 = 285.
Answer:
take all the numbers and multiply...
Step-by-step explanation:
What is the equation of the line that passes through the point (8,-4) and has a slope of 3?
The Ramirez family has a circular garden with a diameter of 22 feet. They cover the garden with mulch. The cost of mulch is $1.25 per square foot. To the nearest dollar, how much will it cost to cover the garden with mulch. Show your work.
A.$380 B. $475
C. $1.520 D. 1.900
Answer:
b) $475
Step-by-step explanation:
if it has a diameter of 22 feet, that means it has a radius of 11 feet
the formula of the area of a circle is πr². so square the radius and you will get 121, multiply that by π and you get 380
Now we know the area is 380 square feet, so multiply that by $1.25 and the answer is $475
About 71% of Earth’s surface is covered in water.
Question 1
Part A
If Earth's surface area is about 196,900,000 square miles, about how many square miles are covered in water?
Enter the correct answer in the box.
Part B
About what percent of Earth’s surface is not covered in water? How many square miles is this?
Enter the correct answers in the boxes.
Answer:
A. 139,799,000 square miles
B. 57,101,000 square miles
Step-by-step explanation:
71% ÷ 100 = 0.71
0.71 x 196,900,000 = 139,799,000
100 - 71 = 29
29 ÷ 100 = 0.29
0.29 x 196,900,000 = 57,101,000
another way; knowledge of A
196,900,000 - 139,799,000
= 57,101,000
Write an algebraic expression to find the number of seconds in n minutes.
n ÷ 60
60 + n
60 ÷ n
60n
Answer:
60n
Step-by-step explanation:
Mathematically, why am i so uneducated?
Answer:
I know this is most likely a joke but I'll answer anyways :)
"Mathematically" you might have poor education whether it's bad teachers, bad school, or maybe you're just not working hard enough. Maybe you are educated and you're just comparing yourself against smarter people which might make you seem not very educated. Or maybe you're secretly a super genius prodigy and you're just too lazy too show it. Who knows...
(0,-5), (1,-4), (2, -3), (3, -2), (4, -1), (5,0) is this a relation
What is the distance from City A to City C?
A. 12 km
B. 18 km
C. 20 km
D. 30 km
Answer:
30
Step-by-step explanation:
the whole thing is 47 so you take away 17 because thats the starting point of c to d so then you have ur answer hope this helped :))))))))))
Answer:
It is D
Step-by-step explanation:
You just do this
[tex]47 - 17 = 30[/tex]
What is the correct order of statements and reasons to complete the proof? help please
Find the selling price.
Markup ($) = percent markup (%) x original cost ($)
Selling price ($) = original cost ($) + markup ($)
A local gaming store bought a gaming console for $90. The gaming store sold the console, and the percent markup was 162%. What is the selling price?
The selling price is: $_________
Skip to navigation
Answer:
$145.80
Step-by-step explanation:
The original cost of the product was $90. There was a 162% markup. In order to get the selling price, I like to take away 100 percent and simply add original price+(original price*62%). After taking away 100%, I am left with 62%. I then multiply the original cost ($90) by the remaining percent (62%), getting 55.8. Following the steps that I originally wrote, I now add 90 to 55.8, getting 145.8.
Answer:$145.80
Step-by-step explanation:
You go to a restaurant and order $137.61 worth of food. You decide to tip the waiter 18%. You also have to pay a tax of 6.5% on the original bill. What is the final cost of the meal?
Answer:
$171.31
Step-by-step explanation:
The final cost of meal is $171.35
What is unitary method?The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.
Given:
price of food = $137 . 61
Tip = 18%
tax = 6.5%
Now, price after giving tip
=137.61 x 0.18
= 24.7698
and, after tax
=137.61 x 0.065
=8.94465
Hence, final cost of meal = 137.61 + 24.7698 + 8.94465 = $171.35
Learn more about unitary method here:
https://brainly.com/question/28276953
#SPJ2
Show me how to do this on paper i need it right now
Answer:
Step-by-step explanation:
32 x 10 = 320
32 x 4 = 128
320 + 128 = 448
A diver descends to a depth of –25.6 feet relative to sea level. How many feet must the diver ascend to reach sea level?
0.6 feet
25 feet
25.6 feet
256 feet
In the diagram, line p is parallel to line q. Parallel lines p and q are cut by transversals r and s. At the intersection of lines p, r, and s, clockwise from top left, the angles are blank, 93 degrees, blank, A, C, B. At the intersection of lines q and s, the angles are blank, 60 degrees, blank, blank. At the intersection of r and q, the angles are 27 degrees, blank, blank, blank. Complete the statements based on the diagram. mAngleA = 27° because it is to the 27° angle. The measure of Angle can be found because it is a vertical angle to the 93° angle. The sum of the measures of angles A, B, and C is degrees.
Answer:
see explanation
Step-by-step explanation:
In the diagram, line p is parallel to line q. Parallel lines p and q are cut by transversals r and s. At the intersection of lines p, r, and s, clockwise from top left, the angles are C, 93 degrees, A, A, C, B. At the intersection of lines q and s, the angles are B, 60 degrees, A, C. At the intersection of r and q, the angles are 27 degree angles, C, A, B.
hope this helps.
Answer: the first answer for dropdown menu1. is (an alternate interior angle)
the second dropdown menu answer is ( C. )
the third dropdown menu answer is ( 180 )
Step-by-step explanation:
mAngleA = 27° because it is
✔ an alternate interior angle
to the 27° angle.
The measure of Angle
✔ C
can be found because it is a vertical angle to the 93° angle.
The sum of the measures of angles A, B, and C is
✔ 180
degrees.
x = 2 y = 3 z = 4
Evaluate the Expression using the solutions above: yz
7
34
8
12
1/3 + 4/6 +6/18 = ?
pls help
5th grade math
help with question number 40 please
PLS ANSWER ASAP!! I WILL GIVE BRAINLIEST TO BEST ANSWER!!
The model shows 1 over 2. Rectangle model divided into two equal sections, first section is labeled one one-half and shaded in. Which of the following correctly models and gives the quotient of 1 over 2 divided by 3 over 10? Rectangle model divided into ten equal sections, first three sections are labeled three-tenths and colored dark, the next two sections are colored light to complete one-half, model equals one and two-thirds. Rectangle model divided into twenty equal sections, first three sections are labeled three-tenths and colored dark, the next seven sections are colored light to complete one-half, model equals three and one-tenth. Rectangle model divided into twenty equal sections, first three sections are labeled three-tenths and colored dark, the next seven sections are colored light to complete one-half, model equals three and one-third. Rectangle model divided into ten equal sections, first section is labeled three-tenths and colored dark, the next four sections are colored light to complete one-half, model equals five.
Answer:
Ok I guess
Step-by-step explanation:
So first you need understand the question next send a pic maybe I can help U then
please help ! i'll give brainliest to the first person who gets it right ! :,>
Answer:
±16
Step-by-step explanation:
the square root of 256 is positive or negative 16! (if it only lets you put one answer, put positive 16).
Answer:
16
Step-by-step explanation:
16*16=256
Mr. Calloway has a rectangular yard that is 120 feet wide and 80 feet deep. To keep his dogs on his property, he needs to build a fence. How much fencing does he need?
A. 200 ft
B. 36 ft
C. 400 ft
D. 480 ft
Answer: what I think the answer is 480 letter D
Step-by-step explanation:
8.067 ; hundredths Round each decimal to the place indicated.
Answer:
8.06
Step-by-step explanation:
Decimals go in the order 10ths hundredths thousandths ten thousandths and so on. In rounding any decimal, one number gets added to the left if the number is 5 or over and the number is discarded if it is lower than 5.
for example if the number was 1.2345 5 would make 4 5 1.235 then 5woould make 3 4 1.24 but if you want to round to a smaller number the other numbers would not go up the numbers would just be discarded.
A farmer wants to increase the area of his rectangular pen but keep the pen a rectangular shape. He decides to add 2 1/2 feet of fencing to the width of the pen, but the length will remain 9 1/4 feet. The new area will be 108 3/4 square feet.
Which equation can be used to determine the original width, w, of the pen?
9 1/4(w+2 1/2)=108 3/4
9 1/4w+2 1/2=108 3/4
2 1/2(w+9 1/4)=108 3/4
2 1/2w+9 1/4=108 3/4
Answer:
914(w+212)=10834
Step-by-step explanation: I took the test
Nic ran for two hours. If he ran one mile every (1)/(6) of an hour, how many miles did Nic run? Which model would help solve this problem?
Answer:
he ran 12 miles. the option you have chosen is the best choice.
Step-by-step explanation:
hope this helps
PLEAS HELP
A scuba diver descends in the water at a rate of 2312 feet per minute for 2.6 minutes. He immediately changes course when he sees a large fish and ascends at a rate of 28 feet per minute for 2 minutes.
What is the scuba diver's position relative to sea level after the 4.6 minutes?
Enter your answer as a decimal in the box.
ft
2312 FPM for 2.6 minutes
2312 x 2.6 = 6011.2
28 FPM for 2 minutes
28 x 2 = 56
6011.2 descend
55 ascend
0-6011.2 = -6011.2
ans + 56 = -5955.2
:)
Answer:
Descends: 2,312 x 2.6 = - 6,011 (when rounding otherwise known as - 6,011.2, this number is negative because he is descending)
Ascends: 28 x 2 = 56
- 6,011 + 56 = -5,955 (in 4.6 minutes)
Step-by-step explanation:
I believe this is the correct answer, I'm not 100% sure though. Please tell me if I'm wrong. Have a wonderful rest of your day or night! ~ ^w^ ~
A line passes through (3, 7) and (6, 9). Which equation best represents the line?
y = 3/2x + 5
y = 2/3x + 5
y = 3x + 2
y = 2/3x + 2
Answer:
y=2/3x + 5
Step-by-step explanation:
Sam has saved 170 sand dollars and wants to give them away equally to his friends . Find the total number of sand dollars each of Sam's friends will get if Sam gives them to 10 friends .
Answer:
17
Step-by-step explanation:
170/10=17
Answer:
17
Step-by-step explanation:
170/17 = 17
Hope this helps :)