Answer:
a) 3 : 4
b) 4 : 3
c) 7 : 3
d) 4 : 7
Step-by-step explanation:
(just a side note: you can write ratios in fraction form as well!)
To find the ratio between boys to girls, we would write it like this:
180/240 or 180 : 240 or 180 to 240
Although that is right, that isn't simplified.
Thus, we need to find a common factor that both the numerator and denominator share!
180 and 240 are both divisible by 60!
180 ÷ 60 = 3
240 ÷ 60 = 4
Therefore, you would get a simplified ratio of 3 : 4! For every 3 boys. there are 4 girls!
For part b, you simply switch the 4 and 3 around so you get 4 : 3. For every 4 girls, there are 3 boys.
Now part c involves the total amount of students...
Basically, add the number of boys and the number of girls together, and you would get 420.
420 : 120 shows the amount of students there are to boys...but it is not in its simplest form!!
Like we did before, we have to find a common factor between the two...which is 60!
420 ÷ 60 = 7
120 ÷ 60 = 3
Thus, there are 7 students for every 3 boys (7 : 3)
Finally, part d! Simply the ratio:
420 : 240
Divide both by 60 and...
You get 4 :7! For every 4 girls, there are 7 students
Hope this helps! Let me know if you have any other questions :D
Answer:
(a) 3:4
(b) 4:3
(c) 7:3
(d) 4:7
Step-by-step explanation:
(a) 3:4
180:240 = 3:4 (after simplification)
(b) 4:3
240:180 = 4:3 (after simplification)
(c) 7:3
Total number of students = 240 + 180 = 420
420:180 = 7:3 (after simplification)
(d) 4:7
Total number of students = 240 + 180 = 420
240: 420 = 4:7 (after simplification)
PLEASE HELP ASAP!!
The area in square feet of a rectangular field is x^{2}-110x+2800. The width, in feet, ix x-40. What is the length, in feet?
Answer: I changed 2 items ({2} and ix), so review carefully. The length is (x-70) feet.
Step-by-step explanation:
Area = x^2 - 110x+2800
Width = (x-40)
Area = Width x Length
(x^2 - 110x+2800) = (x-40)*L
L = (x^2 - 110x+2800)/(x-40)
L = (x - 40)(x-70)/(x-40) Factor the numerator.
L = (x - 70) feet
Divide.
(−14)÷(−34)
What is the quotient?
Enter your answer as a simplified fraction in the box.
Answer:
[tex] \frac{7}{17} [/tex]
Step-by-step explanation:
(-14) ÷ (-34)
14/34
= ⁷/17
The quotient of the division will be 0.41. And the solution of the division (−14) by (−34) would be 7/17 as a simplified fraction.
How can we interpret the division?When 'a' is divided by 'b', then the result we get from the division is the part of 'a' that each one of 'b' items will get. Division, thus, can be interpreted as equally dividing the number that is being divided in total x parts, where x is the number of parts the given number is divided.
We need to divide the mixed fraction with integers, So
(-14) ÷ (-34)
The common denominator we can calculate as the least common multiple of the denominators then we get
14/34
= 7/ 17
= 0.41
Thus, the quotient of the division will be 0.41
Therefore, the solution of the division (−14) by (−34) would be 7/ 17 as a simplified fraction.
Learn more about division here:
brainly.com/question/26411682
#SPJ2
Im not sure how to solve this. Please help.
Answer:
B
hope it helps
1. 6.208 + 1.6 =
how to multiply and divide decimals
[tex]\\ \sf\longmapsto 6.208+1.6[/tex]
[tex]\\ \sf\longmapsto 1.600+6.208[/tex]
[tex]\\ \sf\longmapsto 2.208[/tex]
Just count 0 s at right
plsssssss answerrr pls plsssss
Answer:
20
Step-by-step explanation:
Answer:
20 times
Step-by-step explanation:
6 x 10^5 = 600000
3 x 10^4 = 30000
600000/30000 = 20
Insect Species- The number of species of a particular type of
insect depends on the size of the insect according to the formula
f(m) 40m-0.6, where m is the mass in grams. Find and inter-
pret f'(0.01).
Answer:
F- 18 Hz. = 19m 2.
Step-by-step explanation:
There are 115 flowers on 7 trees. What is the unit rate of the flowers per tree? How many flowers on 22 trees?
Answer: 16 flowers per tree, 352 flowers on 22 trees.
Step-by-step explanation:
115 flowers/ 7 trees= 16.4 flowers per tree
Since you can't have partial flowers, round down to 16 flowers per tree.
16 flowers per tree * 22 trees=352 flowers
Verify each identity
(sin(x))/(1 - cos(x)) - cot(x) = csc(x)
- 3(4 - 9)
Evaluate.
Answer:
-15
Step-by-step explanation:
4-9=-5 -5×-3=15
negative times negative is positive
-3(4-9)
Solve what is inside the parenthesis first:
4-9 = -5
-3 (-5)
(-) x (-) = (+)15:Which statement explains how the lines x+y=2 and y=x+4 ara related?
Answer:
They are perpendicular
Step-by-step explanation:
Function 1: x+y=2 --> y = -x+2
Function 2: y=x+4 --> y = x+4
Function 1 has a slope of -1, Function 2 has a slope of 1.
What are the range of all integers greater than 40 and less than 99 that are multiples of 3?
We want to find the total number of integers that are larger than 40 and smaller than 99 that also are multiples of 3.
The answer is 18.
We can solve this just by counting.
The first multiple of 3 larger than 40 is:
3*14 = 42
Now we know that 99 is also a multiple of 3 and that the multiples of 3 are separated by a distance of 3 units, then the total number of multiples of 3 between 42 and 99 is given by:
(99 - 42)/3 = 19
But we need to remove 1, because we used 99 and we have the restriction that our numbers must be "smaller" than 99.
Then we have a total of 18 multiples of 3 between 40 and 99.
If you want to learn more, you can read:
https://brainly.com/question/19239363
What happens when you add 18 to -18?
Answer:
[tex] - 18 + 18 \\ = 0 \\ thank \: you[/tex]
Answer:
[tex] \longmapsto18 + ( - 18) = 18 - 18 = \boxed{0}✓[/tex]
By adding 18 to -18, we will get 0 as the answer.phân tích các đa thức:
x^3+3x^2+3x+1
Please find attached photograph for the solution of your question.
solve x^2 + 5x + 6= 0
x = -3 or x = -2
Step-by-step explanation:
x² + 5x + 6 = 0
(x + 3)(x + 2)
x = -3 \/ x = -2
Answer:
x₁ = (-2) , & x₂ = (-3).
Step-by-step explanation:
2² + 5x + 6 = 0
/\
2 3
x₂
(x + 2) x + 2 = 0 x₁ = (-2)x₁
(x + 3)x + 3 = 0 x₂ = (-3)Over 25.5 days a ponds water level changed by a average of -0.32 centimeter each day what was the total change in the water level
A:10.55
B:-8.16
C:8.16
D:-10.55
If over 25.5 days a ponds water level changed by a average of -0.32 centimeter each day the total change in the water level will be: C:8.16
Centimeter each day=-0.32
Days of changed in water level=25.5 days
Now let determine total change in the water level
Total change=25.5 days × (-0.32)
Total change=8.16 centimeter
Inconclusion if over 25.5 days a ponds water level changed by a average of -0.32 centimeter each day the total change in the water level will be: C:8.16
Learn more here:
https://brainly.com/question/2028354
3x+3<36
pls help i’m not sure what it is
Answer:
Step-by-step explanation:
get the x alone by subtracting 3 from each side.
3x+3-3<36-3
3x<33
divide by three
3x/3<33/3
x<11
Hello There!
Solving inequalities is almost like solving equations.
x<11.
Let me explain step-by-step.
3x<36-3
3x<33
x<11
We must isolate x.
x < 11 means x is less than 11.
It could be 10, -100, as long as it is less than 11, it would make the inequality true.
Let's verify.
3(10)+3<36
30+3<36
33<36
It's true, isn't it?
Hope it helps! :)
Convert 6200 seconds into weeks. Round your answer to the nearest hundredth
Answer:
0.01 weeks
Step-by-step explanation:
1 min=60sec
1hr=3600sec
1 day = 86400sec
1 week= 604800sec
Therefore answer is 6200/604800= 0.01(approximated)
Find two numbers with a sum of 20 and a difference of 6
Answer:
So the answer is 13 and 7
Step-by-step explanation:
If we consider the case i.e. second-first =6
What are the correct answers to this geometry question?
Answer:
anong grade po yan?
baka alam ko po
Plot the point (−12, −52) on the coordinate plane.
Answer:
Step-by-step explanation:
-12 goes on the x axis (the line that goes ⇄), and because it's negative, it will go to the right.
start from that point (-12 on the x axis) and start going down till you reach -52 on the y axis (the line that goes ⇅)
so it should end up in the bottom left part of the graph
309 × 29 the turtle head way
the answer of 309 x 29 is 8,961
Nolan has $15.00 and earns $6.00 an hour babysitting. use the equation m=6h+15 to determine how much in dollars (m) Nolan has after any number of babysitting(h).
Answer:more than 15 and if he worked for 1h he will have 21$
Step-by-step explanation:
Encuentra el perímetro de la circunferencia cuyo diámetro es de 6 cm
Answer:
Circumference = 2*pi*r
Diameter = 6 cm
Radius = 3 cm
Circumference = 2*22/7*3
= 18.85 cm.....
Step-by-step explanation:
Hope this helps you....
Pls mark me brainliest....
Find the x- and y-intercepts.
3.
8x + 7y= 28
Answer:
dees nuts
Step-by-step explanation:
PLZZZZZ HELP ME ILL MAKE YOU BRAINLIEST ANSWER PLZZZZZZ THANKYOUUU!!!!!!
Answer: what do you need help on?
Step-by-step explanation:
What is the opposite of
[tex] \sqrt{3} [/tex]
Answer:
-1.73
Step-by-step explanation:
wolframalpha:///?i=opposite+of+√3
Additive inverse [tex]\sqrt{3}[/tex]
10+3c≤1 ????????????????????????
Answer:
c<-3
Step-by-step explanation:
move the constant to the right-hand side and change its sing
Then canculate the difference
Then divide both sides for the inequality of 3
2² - 7x-4
Simplify x2-5x+4
3
2x+1
x-1
2x+1
x+1
2-7x
5x
DONE
Answer:
It's the 1st one:
[tex] \frac{2x + 1}{x - 1} [/tex]
Step-by-step explanation:
There is a correct way to do this, but because it's multiple choice you can plug any value, preferably not any negatives, 0 or 1, into the x and then calculate. I plug 2 in for x and got 5 as my answer then I went to the answers and the 1st equaled 5
−2/3)(5/4) Enter your answer as a fraction, in simplest form, in the box.
Answer:
[tex] \frac{ - 5}{6} [/tex]
Step-by-step explanation:
multiply the two fractions ie
[tex] \frac{ - 2}{3} \times \frac{5}{4} \\ = \frac{ - 5}{6} [/tex]
Answer:
-(5/6)
Step-by-step explanation:
1) reduce -1/3 * 5/2
2) multiply - 5/6
Which inequality below satisfies the solution set graphed on the following number line?
Answer:
D.
Step-by-step explanation:
The function must have the range -3 to 5.
2x^2 - 4x - 30
= 2(x^2 - 2x - 15)
= 2(x + 3)(x - 5)
so the critical points are -3 and 5.
When x = -2 f(x) = 2* 1 * -7 = -14 <= 0
when x = 4 f(x) = 2 * 7 * -1 <= 0.
when x= 0 f(x) < 0
So its the last option.