Answer:
Step-by-step explanation: 23/40 = 1/2
A plane with the tailwind is 500 km/h. While going against the wind it is 410 km/h. What is the speed of the plane without wind?
Answer:
45
Step-by-step explanation:
Let the plane speed be x
Let the wind speed be y
x +y= 500.....equation 1
x -y= 410........equation 2
x + y= 500
-
x- y= 410
2x= 90
x= 90/2
x= 45
From equation 1, substitute 45 for x
x + y= 500
45 + y= 500
y = 500-45
x = 455
Hence the speed of the plane is 45
Can I get help on this question? Please explain the process of how to solve it too.
Answer:
x = 13
y = 18.38
Step-by-step explanation:
tan 45 = x/13 (tangent = opposite / adjacent)
1 = x/13
multiply both sides by 13
x = 13
cos 45 = 13/y (cosine = adjacent / hypotenuse
0.7071 = 13/y
multiply both side by y
0.7071y = 13
divide both side by 0.7071
y = 18.38
PLEASE HELP! ASAP PLEASE!
Answer:
4, it's an isosceles trapezoid, so sides TP and RA should be equivalent
5x+4y=-12 Y=-2x-9 What is x
Answer:
X = -16
Step-by-step explanation:
5x+4y=-12 Y=-2x-9
substitute the value of y
5x + 4(-2x - 9)=12
solve the equation
x=-16
If tan 0= 11/60, what is the value of cot0?
9514 1404 393
Answer:
60/11
Step-by-step explanation:
The cotangent of an angle is the reciprocal of its tangent.
cot(θ) = 1/tan(θ) = 1/(11/60)
cot(θ) = 60/11
what does 1/8 + 1/6 equal?
Answer:
7/24
Step-by-step explanation:
1/8 + 1/6
First get a common denominator of 24
1/8 * 3/3 = 3/24
1/6 * 4/4 = 4/24
3/24 + 4/24 = 7/24
Hep me please this is to much
Answer:
A. -300
Step-by-step explanation:
-3 × 5 ×(-5)×(-4)= -300
What is 3.64 as a mixed number in its simplified form
Answer:
[tex]3 \times \frac{16}{25} [/tex]
Answer:
3.64 as a mixed number is 3 and 64/100 and simplified would be 3 and 16/25Step-by-step explanation:
what was the least of rows she could use?
I can’t seem to get an answer on this im stuck anyone that can help
Answer:
7nmzksjsvdoasbxlwkdhaos
a circle has a radius of 2x inches. if the radius is multiplied by a factor of 3/8. what is the new area of the circle
Answer:
(PI x 3/4x square) inches
Step-by-step explanation:
A of a circle = pi times radius squared
A = pi times 3/4x - that is 2x times 3/8
A = 3.14 (or whatever you use for pi) x 3/4 x inches square
A restaurant customer left $1.95as a tip. The tax was 7% and the tip was %15 of the after tax cost. Which information is not needed to compute the bill after tax and tip? What was the total bill?
In a group of 100 politicians, 40 are in Party I and 60 are in Party II. Members of Party I are incapable of changing their minds about anything. Members of Party II change their minds completely randomly every day, independently of all others and also independently of all evidence. Tomorrow, the politicians are going to vote on Proposition 88. Here is a summary of their opinions today. Of the 40 members in Party I, 25 are in favor of Prop 88 and 15 are against. Of the 60 members in Party II, 10 are in favor and 50 are against. Assume that each member in Party II changes their mind based on the toss of a coin: if it lands heads they switch to the opposite opinion and if it lands tails they don't change their mind.
What is the distribution of the number of members in Party II who will favor Prop 88 tomorrow?
Answer:
30 members.
Step-by-step explanation:
Given that in a group of 100 politicians, 40 are in Party I and 60 are in Party II, and that the members of the latter Party change their minds completely randomly every day, independently of all others and also independently of all evidence, knowing that of the 60 members in Party II, 10 are in favor and 50 are against Proposition 88 and that each member in Party II changes their mind based on the toss of a coin: if it lands heads they switch to the opposite opinion and if it lands tails they don't change their mind, to determine the distribution of the number of members in Party II who will favor Prop 88 the following logical reasoning must be performed:
In every coin toss there is a 50% chance that it will come up heads, and a 50% chance that it will come up dry. Thus, we could affirm that each member of Party II has a 50% chance of changing their vote, that is, that an estimated half of the members will change their position. Thus, knowing that initially 10 are in favor and 50 are against Proposition 88, in case half changes their position, the 10 in favor would become 5 in favor and 5 against, and the 50 against would become 25 for and 25 against. In this way, some 30 members of Party II will favor Prop 88.
Which equation matches line p?
Answer:
line p matches with the first equation
Step-by-step explanation:
What have you learned and how can you
apply your knowledge in rounding
decimal numbers to real-life situations?
Answer: With money or in jobs
Step-by-step explanation:
Some good places to practice rounding numbers is the grocery store, restaurants, or mall or while reading the newspaper or planning a party. For example, if you are at the grocery store with your child, you can ask him to round the prices of your items to the nearest dollar.
Mary and Peter shared a cookie. Mary ate three tenths. Peter ate four tenths. How much is left?
Answer:
b.
Step-by-step explanation:
...
Answer:
3/10
Step-by-step explanation:
Mary ate 3/10
Peter ate 4/10
that equals 7/10
so 3/10 is left
f(x) = (3.x4 + 1)2
Determine the total number of roots of each polynomial function
Answer:
6
Step-by-step explanation:
what does the word "of" mean?
A. in addition to
B. multiply by
C. divided by
Answer:
B. multiply by
A standard basketball court is a rectangle with the length 94 feet and width 50 feet. How much square feet or flooring would you need to purchase in order to replace the court ?
Answer:
4700 ft
Step-by-step explanation:
Find the area (l x w)
94 x 50 = 4700 feet
DON'T FORGET UNITS
Answer:
simple ans in 90
Step-by-step explanation:
because 40 + 50 = 90
Grace looked at the thermometer outside and saw that it read -8 °F. Which is the best description for this temperature? A-8 °F is farther away from 0 °F than 8 °F is. B-8 °F is 8° below 0°. C-6 °F is colder than -8 °F. D-8 °F is warmer than 0 °F
Answer:
-8 °F is 8° below
Step-by-step explanation:
it's negative 8 so its 8 below
What is the scale factor of AABC to A DEF?
A. 1/6
B. 1/12
C. 6
D. 12
Answer:
The scale factor of AABC to ADEF is A). 1/6
Find the sum of all the integers between -14 to 8
I will make you brainlest !!
Step-by-step explanation:
Hangg on.
There is a square root of -14 & 84.
Jan could run three miles and now she can run five. What is the percent of change
Answer:
66.6% repeated increase
Step-by-step explanation:
If the simple interest on $2000 for 10 years is $1200, then what is the interest rate?
Answer:
6%
Step-by-step explanation:
Solving our equation
r = 1200 / ( 2000 × 10 ) = 0.06
r = 0.06
converting r decimal to a percentage
R = 0.06 * 100 = 6%/year
The interest rate required to
accumulate simple interest of $ 1,200.00
from a principal of $ 2,000.00
over 10 years is 6% per year.
answer for brainliest
HELP PLASE I REALLY DONT WANNA FAIL WILL GIVE BRAINLIEST
Answer:
C
Step-by-step explanation:
Answer:
the surface area is 1980 hope that helps
Step-by-step explanation:
Find the product of (x + 3)2. (1 point)
Group of answer choices
x2 + 6x + 9
x2 − 6x + 9
x2 − 9
x2 + 9
Answer:
x² + 6x + 9
Step-by-step explanation:
(x + 3)(x + 3) Use the FOIL method: First, Outer, Inner, Last
x² + 3x + 3x + 9
x² + 6x + 9
How would you determine what fraction strips with rhe same denominator would fit exactly under 1/2 & 1/3. What are they?
Step-by-step explanation:
[tex] \frac{1}{2} = \frac{1 \times 3}{2 \times 3} = \frac{1}{6} \\ \\ \frac{1}{3} = \frac{1 \times 2}{3 \times 2} = \frac{1}{6} [/tex]
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we equate first under the fraction (denominator)find the number of products that allow the denominators to be the samethe result that both fractions have the same denominatorAnswer DetailsLesson : MathGrade : 4#I hope this helps°^°
if I have around 9 5-day weeks or 65 days to complete 116 assignments how many assignments do I do for every 5 day week, every day, even tell me how many to do every month
Answer:
You have:
9 weeks ⇒ 116 assignments ⇔ 116/9 ≈ 13 a week9*5= 45 days ⇒ 116 assignments ⇔ 116/45 ≈ 2.6 a day2.25 months ⇒ 116 assignments ⇔ 116/2.25 ≈ 52 a monthIf you consider working weekends as well:
9*7 = 63 days ⇒ 116 assignments ⇔ 116/63 ≈ 2 a dayFor assignments to do for every 5-day week :
9 weeks = 116 assignments
∴ For every week = 116/9 = 13 assignments
________________________________
For assignments to do for every day :
9 weeks = 116 assignments
We have 5 days in 1 week
∴ 9 weeks = 9 × 5 = 45 days
∴ For every day = 116/45 = 3 assignments (approx.)
________________________________
For assignments to do for every month :
1 month = about 30 days
∴ 65 days = 2 months 5 days = 2.2 months (approx.)
∴ For every month = 116/2.2 = 52 assignments (approx.)
I need 1,2,4 thanks.
1. -2y+8
2. 6(4)+3(6^2) -> 24+3(36) -> 24+108 -> 132
4. The absolute value is 7
Answer:
1. -2(y-4)
= -2y-2*-4
= -2y+8
2. a=4, b=6
by substituting the values,
6a + 3b^2
= 6*4 + 3*(6)(6)
= 132
4. absolute value of |-7|
= 7