Answer:
[tex]P(Spade) = 0.25[/tex]
Step-by-step explanation:
Given.
In a deck, there are:
[tex]Cards = 52[/tex]
[tex]Spade= 13[/tex]
Required
Determine the probability that a selected card is a spade
This is represented as: P(Spade) and it is calculated using:
[tex]P(Spade) = \frac{Spade}{Cards}[/tex]
Substitute 13 for Spade and 52 for Cards
[tex]P(Spade) = \frac{13}{52}[/tex]
[tex]P(Spade) = 0.25[/tex]
Hence, the required probability is 0.25
Tyler made six loaves of pumpkin bread that had 1/4 cup of oil in each loaf. After he was done baking, he had 3/8 cup of oil remaining. How much did he have before baking
Answer:
1.875
Step-by-step explanation:
1/4 times 6= 3/2
3/2 + 3/8 =1.875
hope this helps!
46 5/16 times 18 1/9
Answer:
832.25625
Step-by-step explanation:
Mark Me Brainliest Please I used a calculator
What will be the new coordinate of vertex B if the triangle is dilated with a center at the origin by a scale factor of 1/3
You must observe the distances from the center of the dilation at point A to the other points B, C and D. The dilation image will be 1/3 of each of these distances. AB = 6, so A'B' = 2. AD = 9, so A'D' = 3.
Can I get brainllest
what is the product of 9 and 2 times the square root of 90
Answer:
170.76
Step-by-step explanation:
What is the 6th term of the geometric sequence shown?
80, 40, 20, ...
OA
1
Strike Reset
ОВ
Strike Reset
4
OC 24 Strike Reset
OD
5
Strike Reset
Answer:
0
Step-by-step explanation:
subtract 20 from 40 it's Zero
Write the exponent for the expression.
1/7 Х 1/7
Answer: the exponent is 2
Step-by-step explanation: this is equal to (1/7)^2
HELP pls NOW what time does this class shows
Answer:
8:42
Step-by-step explanation:
Answer:
8:42 little hand is the hour long hand is minutes
Noah made 12 kg of trail mix for his family's hiking trip. His family ate 8,600 g of the trail mix on the hiking trip.
How many grams of trail mix did Noah have left?
3x/6+2=8 its a fraction not division
Answer:
X = 12. Hope this helps you:)
3x / 8 = 8 ( simplifying ! )
3x = 64 ( you times both sides by 8 )
x = 21.33 ( just divide both by 3 )
i hope this is correct :D
Is y=3(2)^x a linear or nonlinear function?
Answer: Nonlinear
Step-by-step explanation: Whenever a function has an exponent, it is usually a non-linear function.
Determine whether (8,1) is a solution of y = 13x – 6.
What is a speed of 55 mph equivalent to in units of m/s? ( 1 mile = 1609 m, 1 hour = 3600 s)
9514 1404 393
Answer:
about 24.58 m/s
Step-by-step explanation:
Multiply by conversion factors that change the units, but not the value.
(55 mi/h) × (1609 m/mi) × (1 h)/(3600 s) = (55×1609/3600) m/s
= 88495/3600 m/s ≈ 24.58 m/s
_____
Additional comment
The exact conversion uses 1609.344 meters per mile, so gives exactly 24.5872 m/s.
Tracey paid $120 for an item that was originally priced at $390. What percent of the original price did Tracey pay?
Answer:
Tracey paid 34.5% of the original price.
Explanation
Tracey paid $190 for an item that was originally priced at $550.
For finding the percentage, first we need to divide the paid amount by the original price and then multiply the result by 100%
So, the percentage 190/500 x 100 % = 34.5% (Rounded to the nearest tenth)
Answer:
33.33 or 33 1/3
Step-by-step explanation:
A store receives a shipment of 320 skateboard wheels. After 3 days, 272 of the skateboard wheels are left. After 7 days, 208 skateboard wheels are left.
a. Write an equation that represents the number y of skateboard wheels remaining after x days.
b. Use the linear equation to predict how many skateboard wheels will be left after 11 days.
c. After how many days should the store plan to receive a new shipment of skateboard wheels so they do not run out?
d. What does the slope of the equation represent? What does the y-intercept represent?
Answer:
[tex]y=-16x+320[/tex]
144
20 days
Change of the number of skateboards with respect to the change of days.
y intercept represents the total stock of the skateboard wheels.
Step-by-step explanation:
The points on the plane are [tex](3,272)[/tex] and [tex](7,208)[/tex].
Slope is given by
[tex]m=\dfrac{y_2-y_1}{x_2-x_1}=\dfrac{208-272}{7-3}\\\Rightarrow m=-16[/tex]
The equation of the line will be
[tex]y-y_1=m(x-x_1)\\\Rightarrow y-272=-16(x-3)\\\Rightarrow y-272=-16x+48\\\Rightarrow y=-16x+320[/tex]
The equation that represents the situation is [tex]y=-16x+320[/tex]
When the number of days is 11 we have [tex]x=11[/tex]
[tex]y=-16\times 11+320\\\Rightarrow y=144[/tex]
The number of wheels left after 11 day is 144.
When the shipment will run out [tex]y=0[/tex]
[tex]0=-16x+320\\\Rightarrow x=\dfrac{320}{16}\\\Rightarrow x=20[/tex]
So, after 20 days the shipment will run out.
The slope represents the change of the number of skateboards with respect to the change of days.
The y intercept represents the total stock of the skateboard wheels.
Carson receives a weekly allowance for completing all of his chores. The current amount Carson receives
is $13. That is 30% more than he got during elementary school. What was Carson's weekly allowance
then?
Erin is 3 years younger than twice Alex's age. Their ages combined are 33 years. How old are Alex and Erin? Write a systems of equations first, let x=Erin's age and y=Alex's age
Answer:
X = 15 = Erin's age
Y = 18 = Alex's age
Step-by-step explanation:
X = Erin's age
Y = Alex's age
33 (combined ages) - 3 (how many years Erin is younger than Alex) = 30
30 ÷ 2 = 15
15 + 0 = 15 (Erin's age)
15 + 3 = (Alex's age)
X = 15 = Erin's age
Y = 18 = Alex's age
Check if I'm correct:
15 + 18 = 33
Sorry if wrong! Plz mark brainiest if correct :D Have a great day luv <3
-Bee
Field 0.45 kilo long and 0.4 kilo wide. What is the area in square meters
Answer:
180000
Step-by-step explanation:
Answer:
180.000 m^2.
Step-by-step explanation:
Area in square kilometers
= 0.45 * 0.4
= 0.18
There 1000* 1000 = 1,000,000 square meters in a square kilometer so
Area in sq meters = 0.18 * 1000000
= 180,000 m^2.
What is the unit rate for the ratio 100 points 4 games
Answer:
25
Step-by-step explanation:
100 / 4 = 25
if helpful, pls mark 5 star, thanks, and brainliest!
What is the equation of a line with a slope of 3 and contains
point (4.1)
Answer:
y = 3x - 11
Step-by-step explanation:
y=mx+b
1=3(4)+b
1=12+b
b=-11
Answer:
y = 3x –11
or 3x – y = 11 Standard form
Explanation:
using slope-intercept form, calculate b
1 = 3(4) + b
1= 12 + b
1 –12 = b
–11 = b rewrite the equation using this value.
y = 3x –11
What is the length of the hypotenuse of the triangle??
Answer:
65
Step-by-step explanation:
33² + 56² = 4225
Square root of 4225 = 65
Suppose you had a population of fish whose lengths were normally distributed with a mean of 50 centimeters and a standard deviation of 5 centimeters. You draw a simple random sample of size 10, record the length of each fish, and calculate the mean of the sample lengths. What do you think your sample mean would most likely be
Answer:
The sample mean would most likely be 50 centimeters.
Step-by-step explanation:
Central Limit Theorem
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean [tex]\mu = p[/tex] and standard deviation [tex]s = \sqrt{\frac{p(1-p)}{n}}[/tex]
In this question:
The mean of the population is 50 centimers.
So, by the Central Limit Theorem, the sample mean would most likely be also 50 centimeters.
Five real estate exam scores are 430,430,480,480,495. The data set is humoral because the scores 430 and 480 each occur twice.Which mode would be a better representation of the “center” of the data?
I need some help hereeeeeeeeee
Answer:
D.6
Step-by-step explanation:
6w + 5 =41
6w = 41-5
6w=36
6w/6 =36/6
W=6
Check
Let's put the answer (6) on the w place and see if we get 41
6x6 +5=41
36 +5=41
41=41
What percent of the jeans cost more than $20.
Stem Leaf
166 788 9999
2135
3
4 | 223
2|3 = $23
Answer:
866
Step-by-step explanation:
659
Answer: 2/3=$23
Step-by-step explanation:
How can you make 34 from 6, 7, and 4?
Answer:
7*4+6
Step-by-step explanation:
7*4+6 = 28+6 = 34
A tunnel has a semicircular cross-section
and a diameter of 10 m. If the roof of a bus
just touches the roof of the tunnel when
the bus is 2 m from one side, how high is
the bus?
this question is from the IGCSE maths student book1, shape and space 2 for Edexcel
Answer:
Height of bus = 4 m
Step-by-step explanation:
I have attached an image showing the cross section of this tunnel.
Since the diameter is given as 10m.
Thus, radius = 10/2 = 5 m
Since radius is 5 m, it means that the distance from the center of the circle to the tunnel edge = 5 m
If the bus is 2 m from one side, it means that the centre of the road to the right hand side of the bus will be;
5 - 2 = 3 m
Looking at the image and our values here, it is clear that, the distance from the centre of the road to the point where the bus just touches the roof tunnel = 5
Using Pythagoras theorem, we can find the height of the bus, h;
h² + 3² = 5²
h² + 9 = 25
h² = 25 - 9
h² = 16
h = √16
h = 4 m
If you open a new savings account at the bank and deposit $100 and then deposit $75 per week over the following weeks, which of the following equations would best represent how much total money you have in your account at any point in time?
y = 75x + 100
x = 75y - 100
75x + 15y = 100
y = 100x + 75
Answer:
y = 75x + 100
Step-by-step explanation:
75 is the constant 100 is the y intercept
please give me brainliest
A car travels a constant speed of 70 miles per hour. How far will it have travel in 4 hours?
Answer:
280 km
Step-by-step explanation:
What is 1/4 of a full rotation?
Earning an A in algebra this semester is an example of:
A. a long-term goal.
B. a short-term goal.
C. an instant goal.
D. a short-term commitment.
SUBMIT
Earning an A in algebra this semester is an example of (A) a long term goal.
One of the many branches of mathematics is algebra, which means "reunion of shattered pieces, setting of bones" in Arabic. Algebra, which is a common thread throughout practically all of mathematics, is essentially the study of mathematical symbols and the rules for using them in formulas.
Since all mathematical applications involve manipulating variables as though they were numbers, elementary algebra is a prerequisite. The study of algebraic structures like groups, rings, and fields is referred to as abstract algebra, primarily in educational contexts (the term is no more in common use outside educational context). Modern presentations of geometry include linear algebra, which deals with linear equations and linear translations, and has numerous real-world applications (in weather forecasting, for example).Since there are a wide variety of application for Algebra in our day-to-day lives and in the modern sciences, so a good score in Algebra will not only get a good score for the results but also help learn valuable information for the future. Hence it is a long-term goal.
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