Answer:
girls: 16
boys: 40
Step-by-step explanation:
girls : boys
2 : 5
let the total number of people be (2+5)x.
2x + 5x = 56
7x = 56
x = 8
therefore, no. of girls = 2 x 8 = 16
no. of boys = 5 x 8 = 40
This is a question on ratio and proportions + forming and solving equations. If you wish to venture further into it/understand this topic better, you may want to follow my Instagram account (learntionary), where I post some of my own notes on certain topics and also some tips that may be useful to you :)
the population of a country in 2009 was 642000 and it was increased by 5 % in 2010.
i-Find increase in population.
ii-How much was the population in 2010.
iii-Find percentage of increase over the population of 2009
Answer:
i) 32100 people
ii) 674100
iii) 5%
Step-by-step explanation:
The population in 2009 was : 642,000
The percent increase was by : 5%
This means the population in 2010 will be :
105/100 * 642000 = 674,100
i) Increase in population is ; 674,100 - 642,000 = 32100 people
ii) The population in 2010 was : 674,100
iii) Population of 2009 = 642000
Population of 2010 = 674,100
Increase in population = 674,100 - 642000 = 32100
Percent increase = increase/ original population * 100
Percent of increase = 32100/642000 * 100 = 5%
10x=6x-24
help!!!! me pleasee!!
Answer:
x = -6
Step-by-step explanation:
10x = 6x - 24
Subtract 6x from both sides.
4x = -24
Divide both sides by 4.
x = -6
Tres hermanos pintarán la fachada de su casa. Alejandro pinta
3
8
de la casa durante el primer día.
Alberto pinta
4
9
de la casa durante el segundo día. Para el tercer día, Alan debe pintar lo que queda.
¿Qué porción de la casa le corresponde pintar a Alan?
Answer:
La porción de la casa que le corresponde pintar a Alan es [tex]\frac{13}{72}[/tex]
Step-by-step explanation:
Sabes que Alejandro pinta 3/8 de la casa durante el primer día, mientras que Alberto pinta 4/9 de la casa durante el segundo día. Entonces, la porción pintada de la casa durante esos dos días es la suma entre la porción pintada por Alejandro y la porción pintada por Alberto:
[tex]\frac{3}{8} +\frac{4}{9}[/tex]
Un método para sumar fracciones con distinto denominador consiste en buscar el común denominador de las fracciones que se van a sumar. Para ello se multiplica los denominadores de las fracciones: 8*9= 72. El común denominador se divide entre el denominador de la primera fracción. El resultado de la división se multiplica por el numerador de la misma fracción. Una vez que se divide y se multiplica, el resultado se coloca en el numerador con el signo correspondiente. Se realiza el mismo procedimiento con la otra fracción y se realiza la suma con los numeradores resultantes.
Entonces, en este caso se obtiene:
[tex]\frac{3}{8} +\frac{4}{9}=\frac{27+32}{72} =\frac{59}{72}[/tex]
Entonces, para calcular la porción de la casa que le corresponde pintar a Alan, y considerando que 1 representa un entero, la totalidad de la casa que se desea pintar, se realiza la resta entre la totalidad de la fachada a pintar y la porción pintada por Alejandro y Alberto:
[tex]1-\frac{59}{72}[/tex]
Considerando que el procedimiento de la resta es similar a la suma, se obtiene:
[tex]1-\frac{59}{72}=\frac{72-59}{72} =\frac{13}{72}[/tex]
La porción de la casa que le corresponde pintar a Alan es [tex]\frac{13}{72}[/tex]
What is the answer? Or how can I solve this.
Answer:
61.5 degrees
Step-by-step explanation:
A triangle has to add up to 180 degrees total
PLEASE MARK BRAINLIESTi think of a number add one and square the number. the result is 9. What number could it be?
Answer:
The answer is 2
Step-by-step explanation:
2 + 1 = 3
3^2 = 9
Two students are pulling an object with ropes. One student pulls with a force of 40 pounds at an angle of 30° above the ground, and the other student pulls with a force of 35 pounds at an angle 45° above the ground. What is the direction of the resultant force?
approximately 37.33° above the ground
approximately 42.27° above the ground
approximately 47.73° above the ground
approximately 53.13° above the ground
Answer: A. approximately 37.33° above the ground
Step-by-step explanation:
edge2020
The the direction of the resultant force is A. approximately 37.33° above the ground.
What's a resultant force?A resultant force simply means the single force that has same effect as two or more forces that are acting together.
In this case, a student pulls with a force of 40 pounds at an angle of 30° above the ground, and the other student pulls with a force of 35 pounds at an angle 45° above the ground.
The direction of the resultant force is 37.33° above the ground.
Learn more about resultant force on:
https://brainly.com/question/25239010
solve x-15% of x= Rs.170
[tex]170 - ( \frac{15}{100} \times 170)[/tex]
This graph shows a proportional relationship between time (m) and water used
(g). Find the constant of proportionality and use it to write an equation in the
form g=rm, wherer is the constant of proportionality. *
Water Use
50
40
30
Water used (gal)
20
10
o
2 4 6 8 10
Time (min)
Hurry pls and, thank you :)
Answer:
Use dezmos
Step-by-step explanation:
Martina took a math test and answered 17 out of 20 questions correctly. What percent of the questions did Martina answer correctly?
Answer:
85%
Step-by-step explanation:
At local parks, bikes can be rented through Clarksville B-Cycle. They charge a $3 fee plus $2 an hour for renting a bike. Ryan's total bill for one day was $15 to rent a bike. How many hours did he have the bike checked out?
Answer:
7
Step-by-step explanation:
a car travels 55 miles per hour for 2 hours how far does the car travel in 1/2 of a hour 1 1/2 hour
Answer:
Suppose you travel a distance of 100 miles, and it takes 1 1/2 hours to do it. Your average speed is then 100 miles divided by 1.5 hours which equals 66.67 miles per hour.
Step-by-step explanation:
Answer:
for a half an hour the car travels 13.75 miles
Step-by-step explanation:
QUACKITY SUPREMACY ALSO I NEED HELP WITH MATH
Answer:
QUACKITY IS THE MOST POG PERSON EVER
Step-by-step explanation:
BECAUSE I SAID SO
can you answer 20 x 3/4
Answer:15
Step-by-step explanation:
Answer15
Step-by-step explanation:
5) Mary drives 33 miles in 3/5 of an hour. After 6 hours of traveling, 1 point
how far will she drive? (Hint: Not just 1 hour, but 6 HOURS!) Don't
forget to include appropriate units with your answer, no
abbreviations please. *
Answer:
330 miles
Step-by-step explanation:
speed of marry = distance traveled /time taken
=33/3/5 = 55 miles/hr
therefore distance travelled by marry in 6 hours = 55*6 = 330 miles.
What would the graph of x > 5 look like?
Answer:
It will look like this
please help me with this question
9514 1404 393
Answer:
D
Step-by-step explanation:
The leading term is of odd degree and negative coefficient. The odd degree tells you the end behaviors will have opposite signs. The negative coefficient tells you the left end behavior will be positive, and the right end behavior will be negative.
[tex]\textbf{D. }\lim\limits_{x\to -\infty}f(x)=\infty\quad\lim\limits_{x\to \infty}f(x)=-\infty[/tex]
(Puzzle 2 - Scientific Notation Directions: Using the digits 1 to 9 to fill in the boxes only once, write the largest and smallest absolute value. Then find the decimal equivalent. EX|3.1 X 104- 6.5 X 102| =|31000-650|=|30, 350| is this the largest or smallest? Once you find the largest, start again with new digits and find the smallest. _x10^blank - _ x 10^_
Answer:
8x(10)^9 - 2 x (10)^1
1x(10)^3 - 9 x (10)^2
Step-by-step explanation:
3.1 X (10)^4- 6.5 X (10)^2
= 31000- 650
= 30,350
For greater number
_x10^blank - _ x 10^_
8x(10)^9 - 2 x (10)^1 ( we use 9 as the power because greater number used as power gives the bigger number and the next smaller number 8 as base. Similarly we use smaller number for power to get a smaller for the greatest difference)
= 8,000,000,000 -20
= 7,999,999,980
For smaller number
_x10^blank - _ x 10^_
1x(10)^3 - 9 x (10)^2 ( we use 3 as the power because smaller number used as power gives the smaller number and the next smallest number 1 as base. Similarly we use next smaller number for power to get the next smaller for the smallest difference)
= 1000- 900
= 100
We fill in the blanks keeping in mind that we do not have to repeat the numbers from 1-9 and also the numbers should have such an arrangement that they show the smallest and largest possible differences.
If Josiah’s speed, in miles per minute, is constant, what is the constant of proportionality?
Answer:
the constant of proportionality is 1 mile
Step-by-step explanation:
Assignment: 11/12/20 8.3 Lesson 13 Problem Set (8.G.B.6) Problem D: PRABB5M Use the Pythagorean theorem to determine the unknown length of the right triangle. Determine the length of side c in each of the triangles that follows. A 6. B Do not include any units in your answer. engage
Answer:
a²+b²=c²
Step-by-step explanation:
Which point is on the the line described by the equation below 4x-3y=-4
Answer:
The answer is (2,4)
Step-by-step explanation:
I did this question and I got it right
From the given options point given in option A will pass through the line.
Given question is incomplete; here is the complete question,
Which point is on the line described by the equation below?
4x – 3y = -4
A (2,4)
B (1,-4)
C (2,-4)
D (4,4)
Equation of the line given in the question,
4x - 3y = -4Satisfy the equation with each point given in the options,
Option A
Satisfy the equation with (2, 4),
4(2) - 3(4) = -4
8 - 12 = -4
-4 = -4
True.
Therefore, given line will pass through (2, 4).
Option B
Satisfy the equation with (1, -4),
4(1) - 3(-4) = -4
4 - 12 = -4
-8 = -4
False.
Therefore, line will not pass through (1, -4).
Option C
Satisfy the equation with (2, -4),
4(2) - 3(-4) = -4
8 + 12 = - 4
20 = -4
False.
Therefore, (2, -4) will not lie on the given line.
Option D
Satisfy the equation with (4, -4)
4(4) - 3(-4) = -4
16 + 12 = -4
28 = -4
False.
Therefore, (4, -4) will not lie on the the given line.
Point given in Option A will pass through the line.
Learn more,
https://brainly.com/question/2213105
what is the answer of 6 ( 9a - 5m )
Answer:
Step-by-step explanation:
6(9a - 5m)
Solution
(6 * 9a - 6 * 5m)
54a-30m "ANS"
Answer:
Step-by-step explanation:
6(9a-5m) foil
54a-30m
Is this statement true or false? *
If an odd number is less
than 15, then it is prime.
Answer: That is false
Step-by-step explanation: 9 is odd but not prime
The statement "If an odd number is less than 15, then it is prime" is false because the number 9 is not prime.
What is the number?A number is a mathematical entity that can be used to count, measure, or name things. For example, 1, 2, 56, etc. are the numbers.
It is given that:
If an odd number is less than 15, then it is prime.
As we know,
The prime number is the number that has factors only 1 and itself the number.
The odd number is less than 15.
The odd number is less than 15 = {13, 11, 9, 7, 5, 3}
The statement "If an odd number is less than 15, then it is prime" is false
Because the number 9 is not prime.
Thus, the statement "If an odd number is less than 15, then it is prime" is false because the number 9 is not prime.
Learn more about the number here:
brainly.com/question/17429689
#SPJ2
PLEASE HELP I WILL BRAINLIEST, MY GPA RELIES ON THIS!! IM BEGGING HERE
1. The base of the prism is a trapezoid whose bases are 24 cm and 10 cm, and the shorter ones are 13 cm and 15 cm. Calculate the area and volume of the prism if its height is equal to the height of the trapezoid?
Step-by-step explanation:
it's so much work, here's the first half untill i do the rest
i added the rest, i hope i helped somehow good luck!! :)
Jason spent $140 in six days. He spent $20 on the first day. He spent the same amount of money during the next five days. How much did Jason spend each day during the last five days?
Answer:
24
Step-by-step explanation:
140-20= 120
120 divided by 5= 24
To check do 24 times 5 and add the 20 from day 1.
The figures are similar find x for both
HELP IM ON GRADPOINT I AM ON A QUIZ IF I CAN ALSO GET THE REST OF THE ANSWERS I WILL MARK BRAINLYEST
Answer:
top is independent, bottom is dependent
Step-by-step explanation:
top has only 1 answer, bottom has infinite answers
Sarah started 3 miles below the rim of the canyon and hiked until she was 8 miles above the rim. Her brother Sam said she hiked 5 miles. Sarah said she hiked 11 miles.
Who is correct and why?
A. Sam is correct because |3 – 8| = 5.
B. Sam is correct because |–3 – 8| = 5.
C. Sarah is correct because |–3 + 8| = 11.
D. Sarah is correct because |–3 – 8| = 11.
Answer:
D
Step-by-step explanation:
We can assume that the rim of the canyon is 0. Sarah started 3 miles below, so -3, BUT distance can never be negative, so it's considered 3 miles. Then, she went 8 miles above zero. So the 3 miles she went before reaching the rim plus the 8 miles she went after reaching the rim equals 11 miles.
So now we know that Sarah is right, but how do we know which equation is correct? Well, if we look at option C:
[tex]|-3+8|=11[/tex]
When solving absolute value, we solve everything within the absolute value before applying the absolute value. This means that we add -3+8 first, which equals 5, and then apply absolute value, which still equals 5. This equation is not correct.
I hope this helps!
Answer:
The answer is D
Step-by-step explanation:
I took the quiz.
if you can explain it best, and answer them you'll get a brainliest
Answer:
11. -3 - (-8) = 5
12. -10 + (-25) = -35
13. -11 - (-10) = -1
14. 12 + (-5) = 7
15. -9 (9 + (-9) = 0)
Step-by-step explanation:
I don't really know how to explain it. For 11 I just found found the difference kind of. It's easier if you draw out a number line. 12 is self - explanatory, you just add the two negative numbers and it will be a negative. I look at 14 as just another minus equation.
Answer:
11. 5
12. -35
13. -1
14. 7
15. -9
Step-by-step explanation:
11. -3-(-8)
= -3 + 8 (double negative is positive)
= 8-3
= 5
12. -10 + (-25)
= -10 -25 (positive negative is negative)
= -35
13. -11 - (-10)
= -11 + 10
= -1
14. 12 + (-5)
= 12 - 5
= 7
15. 9 + x = 0
x = 0 - 9
x = -9
PLS GIVE BRAINLIEST
Terrence was filling the new fish aquariums where he works. He was able to fill 1 and one-third aquariums in 2 and one-half hours. At this rate, how long will it take him to fill 4 aquariums? 5 and one-third hours 6 hours 7 and one-halfhours 10 hours
Answer:
c 7 1/2 hours
Step-by-step explanation:
Answer:
480 milligrams
Step-by-step explanation:
https://qui zlet.com/533176966/math-flash-cards/
The diagram shows two straight lines.
Not drawn accurately
136°
Х
Work out the value of x.
Answer:
x = 136º
Step-by-step explanation:
This is true because of the vertical angles rule. With vertical angles, they always equal each other.