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Answer:
-28/45
Step-by-step explanation:
Step 1, the sign
When the fractions have an odd number of minus signs (1, not 0 or 2), the result will be negative. This knowledge lets you ignore the sign while you do the rest of the arithmetic. The appropriate sign is applied to the final numbers.
Step 2, the formula
The ratio (a/b)÷(c/d) is (ad)/(bc). There are several ways you can get there:
⇒ "invert and multiply" or "swap dot"
[tex]\dfrac{a}{b}\div\dfrac{c}{d}=\dfrac{a}{b}\,\cdot\,\dfrac{d}{c}=\dfrac{ad}{bc} \quad\text{division is multiplication by the reciprocal}[/tex]
⇒ "numerators of a common denominator"
[tex]\dfrac{\left(\dfrac{a}{b}\right)}{\left(\dfrac{c}{d}\right)}=\dfrac{\left(\dfrac{ad}{bd}\right)}{\left(\dfrac{bc}{bd}\right)}=\dfrac{ad}{bc}[/tex]
⇒ "swapped denominators of a common numerator"
[tex]\dfrac{\left(\dfrac{a}{b}\right)}{\left(\dfrac{c}{d}\right)}=\dfrac{\left(\dfrac{ac}{bc}\right)}{\left(\dfrac{ac}{ad}\right)}=\dfrac{ad}{bc}[/tex]
The use of common numerators or common denominators is most often seen when the numerator or denominator of one fraction is a multiple of that in the other fraction. Example: (2/3)÷(1/6) = (4/6)÷(1/6) = 4/1 = 4
Step 3, reduce the result
Any of these fractions is reduced by cancelling common factors from numerator and denominator. Your fractions here don't have any common factors, so there is nothing to cancel.
_____
Your product is ...
(4/9) ÷ (-5/7) = -(4·7)/(9·5) = -28/45
en una encuesta a 200niños sobre el programa de T.V. que más les gusta ver ,se encontró que a 30 niños ven dibujos animados 45 niños miran películas animadas solamente 55niños miran programas sobre animales 38 niños miran programas sobre animales y dibujos animados 32 niños miran los tres tipos de programas encuentra el porcentaje de cada grupo
Answer:
15% de los niños solo ven dibujos animados, 22.5% solo ven películas animadas, 27.5% ven programas sobre animales, 19% miran programas sobre animales y dibujos animados, y 16% ve los tres tipos de programas.
Step-by-step explanation:
Dado que en una encuesta a 200 niños sobre el programa de TV que más les gusta ver se encontró que 30 niños ven dibujos animados, 45 niños miran películas animadas, 55 niños miran programas sobre animales, 38 niños miran programas sobre animales y dibujos animados y 32 niños miran los tres tipos de programas, para determinar el porcentaje de cada grupo se deben realizar los siguientes cálculos:
30/200 = 15/100 = 15%
45/200 = 22.5/100 = 22.5%
55/200 = 27.5/100 = 27.5%
38/200 = 19/100 = 19%
32/200 = 16/100 = 16%
Así, 15% de los niños solo ven dibujos animados, 22.5% solo ven películas animadas, 27.5% ven programas sobre animales, 19% miran programas sobre animales y dibujos animados, y 16% ve los tres tipos de programas.
What is
3/4
÷
1/8
?
explain your reasoning
Answer:
6
Step-by-step explanation:
when you divide fractions you can "flip" the second fractions and multiply instead.
So you can do:
3/4 * 8/1 which equals 24/4 which simplifies to 6
Answer:
The answer is 6.
Step-by-step explanation:
If you have to do division with 2 different fractions you have to make them have equal denominators. The way you do this is that you multiply 4 x 2 in order to make the denominator of 3/4 turn into 8 and since the rule is whatever you do to the bottom you have to do to the top 3/4 turns into 6/8 because you multiply 3 x 2. Then you see how many times you can put 1/8 into 6/8. The answer for this is 6. Afterwards in order to make sure your answer is correct you do 1/8 x 6/1, (6). Since 1/8 x 6 is 6/8, your answer is correct.
a) Find the area of triangles in which
(i) base = 8 cm, height = 5.5 cm
(ii) base = 12 cm, height = 8.4 cm
Answer:
Step-by-step explanation:
1) B=8cm H=5.5
A=1/2xbxh
A=I/2 x 8 x 5.5
A=22
The area of the first traingle is 22cm
2)
B=12cm h=8.4
A=1/2xbxh
A=1/2 x 12 x 8.4
A=50.4
Hope it helps...This is My first Answer...Follow me?!
HURRY PLS.... NO WRONG ANSWERS!!!
A
sorry i did it on my iapd but forgot to show the work...
Please help
Write an equation for the situation: Karen wrote a check for $72. She subtractded the amount from her checkings account and found that the balance was $383 after writing this check. What was her balance before writing the check?
10 points
Answer:
She had $455 before
You and a friend are reading the same book over the summer. You have already read 35
pages of the book, and you read 15 pages each day. Your friend has only read 15 pages
so far but reads 20 pages each day. After how many days you will both be on the same
page? Use a system of equations to solve.
Answer:
1 or 3
Step-by-step explanation:
Can y’all help me with number 1
Answer:c
Step-by-step explanation:
Answer:
The answer would be B.
What is the surface area
Answer:
red) area = 59.2 km²
Step-by-step explanation:
area of bottom 4 x 4 = 16
area of 4 sides = 4 (1/2)(4)(5.4) = 43.2
16 + 432 = 59.2 km²
Answer:
Step-by-step explanation:
lateral area = 2(base)(slant height) = 2·4·2 = 16 km²
base area = base² = 4² = 16 km²
surface area = 16 + 16 = 32 km²
The sum of the ages of Gusion and Lesley is 42. Four years ago, Gusion was twice as old as Lesley. Find the present age of each.
Answer:
Gusion = 2years
Lesley= 40years
Step-by-step explanation:
Let Guison age be x
Let Lesley age be y
If the sum of the ages of Gusion and Lesley is 42, then;
x+ y =42 ... 1
Four years ago
Guison age = x - 4
Lesley age = y - 4
If four years ago, Gusion was twice as old as Lesley, then;
x - 4 = 2(y-4)
x - 4 = 2y - 9
x - 2y = -9+4
x - 2y = -5 .... 2
Substract 1 from 2;
y + 2y = 1+5
3y = 6
y = 2
From 1;
x = 42 - y
x = 42-2
x = 40
Hence present age pf Guison is 2 years
Present age of Lesley is 40 years
Mhanifa please help! This is due in 1 hour! I will mark brainliest! Random answers will be reported
Answer:
m∠M = 33°Step-by-step explanation:
Given
ΔXYZ ≅ ΔMNLCorresponding angles are congruent:
∠X≅∠Mm∠X = m∠Mm∠X = 33° ⇒ m∠M = 33°Please answer! I’ll make brainliest
Answer:
16 feet
Step-by-step explanation:
We are Given that
We have a 34 foot ladder leaning against a 30 foot buildingWe are asked to find the distance of the bottom ladder from bottom of the building.A ladder leaning against a object makes the ladder slanted so that means 34 is our hypotense.
The building height And distance of the bottom of ladder and building is our legs so our formula we use is
[tex] {30}^{2} + {x}^{2} = {34}^{2} [/tex]
[tex]900 + {x}^{2} = 1156[/tex]
[tex] {x}^{2} = 256[/tex]
[tex]x = 16[/tex]
10 + 2(5-1)2 4-2 find the value
PLS HELP WILL MARK BRAINLIEST
What does paragraph 26 reveal about Rachel's character?
A. She is different from her peers.
B. She tries to fit in with her peers
C. She knows her peers make fun of her
D. She enjoys being the center of attention
(The Fan Club) Common lit
Answer:
your answer is A hope this helps
Step-by-step explanation:
Someone help and please make sure it’s right
Answer:
x=10
Step-by-step explanation:
18x=180
x=10
if my answer helps please mark as brainliest.
What is the length in centimeters of the hypotenuse of the right triangle below?
2 cm
8 cm
Answer:
Step-by-step explanation:
WASSUP
maria will run less than 32 miles this week. so far, she has run 18 miles. what are the possible numbers of additional miles she will run?
Answer:
17
Step-by-step explanation:
36-18=18
but it has to be less than 32 miles so its 17 miles.
what's the circumference of a circle with a diameter of 12 inches? Use 3.14 for pi
Answer:
37.68 inches
Step-by-step explanation:
Circumference = 12 x 3.14
Circumference = 37.68
Hope that helps!
Line t has slope 3/4 and passes through (0, 0) . Follow these steps:Step
1: Start at (0, 0) Step
2: Move right 8 units
Answer:
(8,0)
Step-by-step explanation:
y=mx+b
0=(3/4)0+b
0=b
y=3/4x+0
the point eight units away from (0,0)
is (8,0)
Hope this helps :)
Find the discriminant.
x2–3x–9=0
Answer:
45
Step-by-step explanation:
The discriminant is b^2 - 4(a)(c) so just plug all the values in.
(-3)^2 - 4(1)(-9) = 45
please please please please help me
Sim porque positivo não fecha
A cylinder has a height of 10 centimeters. Its volume is 9,074.6 cubic centimeters. What is the radius of the cylinder?
Answer:
MONKE
Step-by-step explanation:
MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE MONKE
-BOB THE MF BUILDER WAS HERE
what is the sum of the exterior angles of regular 24-gon
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Answer:
360°
Step-by-step explanation:
The sum of exterior angles of any convex polygon is 360°.
The temperature was -5°F and then fell 8°F.
Answer:
The temperature is now -13 degrees Fahrenheit
Hope that helps!
Step-by-step explanation:
Answer:
It increased??
Step-by-step explanation:
What is the equation of the line that passes through the following two points (5, 7) and (-2, 7)?
Answer:
y=7
Step-by-step explanation:
please help will mark brainliest
Answer:
16.5 cm
Step-by-step explanation:
Using Pythagoras' identity in the right triangle
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides.
let x be the other leg, then
x² + 13² = 21²
x² + 169 = 441 ( subtract 169 from both sides )
x² = 272 ( take the square root of both sides )
x = [tex]\sqrt{272}[/tex] ≈ 16.5 cm ( to the nearest tenth )
What are the solutions to the equation y^2-1 = 80?
Answer:
y^2-1=80
y^2=81
y = positive and negative 9
y2−1=80
Step 1: Add 1 to both sides.
y2−1+1=80+1
y2=81
Step 2: Take square root.
y=±√81
y=9 or y=−9
Answer:
y=9 or y=−9
Need help 6th grade work!!
Please help me ASAP I’m really confused
Given the kite below, if NO = 5 and OM = 12, what is the value of NM?
Answer:
NM = 13
Step-by-step explanation:
pythagorean theorem: [tex]a^{2} + b^{2} = c^{2}[/tex]
a or NO = 5
b or OM = 12
c or NM = ?
plug in what is known:
⇒ [tex]5^{2} + 12^{2} = c^{2}[/tex]
⇒ [tex]25 + 144 = c^{2}[/tex]
⇒ 169 = [tex]c^{2}[/tex]
square root each side of the equation:
⇒ [tex]\sqrt{169} = \sqrt{c^{2} }[/tex]
solve:
⇒ 13 = c