Answer:
9/10
1/2+2/5
Since these fractions have different denominators, we need to find the least common multiple of the denominators.The least common multiple of 2 and 5 is 10, so we need to multiply to make each of the denominators = 10
1/2 ∗ 5/5 = 5/10
5/2∗ 2/2= 4/10
Since these fractions have the same denominator, we can just add the numerators
5/10+ 4/10 = 9/10
Answer:
1/10
Step-by-step explanation:
Begin by writing the given phrase as an equation. The sum of two-fifths and f can be written 2/5+f, and that term is equal to one-half, written 1/2. Written together,
2/5+f=1/2.
Begin by subtracting 25 from each side,
2/5+f−2/5=1/2−2/5.
Simplify and rewrite with a common denominator,
f=1/2⋅5/5−2/5⋅2/2
and simplify again,
f=5−4/10,
and solve for f,
f=110.
How does the jet stream affect weather around the world?for 60 points!,
Answer:
jet streams can drive and direct storms, creating devastating droughts and floods.
Step-by-step explanation:
give me brainliest.The complement of an angle of 22° is an angle measuring
As a Boulder rolls from the tip of hill to the bottom how does its potential and kinetic energy change
A. potential and kinetic energy both increase
B. Potential increases and kinetic decreases
C. potential decreases and kinetic increases
D. potential and kinetic energy both decrease
Answer:
C
Step-by-step explanation:
The potential energy is how much it could move while kenetic is how much it is moving.
What is the slope of the line with equation y-3=-1/2(x-2)?
Answer:
The answer is m = -1/2
Step-by-step explanation:
1. (!0 Points) What is the combined Boyle's Law, Charles Law, Gay-Lussac Law equation that
relates initial pressure, volume and temperature to a final pressure, volume, and
temperature?
Answer:
he Pressure-Volume Law. Boyle's law or the pressure-volume law states that the volume of a given amount of gas held at constant temperature varies inversely with the applied pressure when the temperature and mass are constant.
Step-by-step explanation:
Solveee ? Asap if any1 can
I need the answer of this question
Answer:
62 cm.
Step-by-step explanation:
To make a pentagon one side of the triangle must equal one side of the square.
The length of each side of the square = 48/4 = 12 cm so one side of the triangle = 12 cm.
The sum of the other 2 sides of the triangle = 38 - 12 = 26cm.
So the required perimeter = 26 + 3(12)
= 26 + 36
= 62 cm.
Find the distance represented by 4.9 inches if 1 inch = 50 miles.
A. 4.9 miles
B. 49 miles
C. 209 miles
Ο Ο Ο Ο
OD. 245 miles
E none of these
Margot is sewing a ribbon on a seam along the perimeter of a square pillow. The side length of the pillow is 2x2+1 inches. She plans to make a similar pillow, including the ribbon, whose side length is 4x−7 inches. What expression can be used for the length of ribbon that she needs for both pillows, and what is the length if x = 3.5?
The expression that represents the length of the ribbon and the pillow is [tex]P =4(2(3.5)^2 + 1) + 4(4(3.5) - 7)[/tex]
The side lengths are given as:
Pillow = 2x^2 + 1Ribbon = 4x - 7The shapes are said to be in form of squares.
PerimeterThe perimeter of a square of side length x is calculated using:
[tex]P =4x[/tex]
The expressionThe perimeter of the ribbon and the pillow is:
[tex]P =4(2x^2 + 1) + 4(4x - 7)[/tex]
The value of x is 3.5.
So, the expression becomes
[tex]P =4(2(3.5)^2 + 1) + 4(4(3.5) - 7)[/tex]
[tex]P =130[/tex]
Hence, the expression that represents the length of the ribbon and the pillow is [tex]P =4(2(3.5)^2 + 1) + 4(4(3.5) - 7)[/tex]
Read more about perimeters at:
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Answer:
d is answer
Step-by-step explanation:
Solve the equation for h.
S = l w + w h + h l
Answer:
Check this out..
Step-by-step explanation:
I think I just answered your question
6 Which of the following is true?
А
You pay interest when you borrow money and earn
interest when you loan money
B
You earn interest when you borrow money and pay
interest when you loan money
C
You pay interest both when you borrow and loan money
D
You earn interest both when you borrow and loan money
6 of 10
Answer:
A is the correct
Answer:
A is true
Step-by-step explanation:
cause when borrowing money there is a condition attached which is paying back with interest,and also when loan out money you also attach a condition which is also paying back with interest,so therefore when u loan out money you earn interest and when you borrow you pay out interest
A student worked out at a gym continuously from 70 minutes. The graph shoes the remaining percentage of the workout as a linear function of x, the time
in minutes.
Which answer choice best describes and rage of the function for this situation
Answer: the first answer
Step-by-step explanation: sorry i know it would’ve been better if i typed it but i’m running out of charge so it would be you first answer. this is because domain shows the minimum and maximum values x can be and range is the same but for y. the second and third functions aren’t in any format that i’ve learned before and it’s closest to interval notation which can be written as [min,max] with parentheses if it doesn’t touch those values. but yeah i hope this helped and i’m sorry if it is incorrect. good luck!
In your biology class, your final grade is based on several things: a lab score, scores on two major tests, and your score on the final exam. There are 100 points available for each score. However, the lab score is worth 21% of your total grade, each major test is worth 22.5%, and the final exam is worth 34%. Compute the weighted average for the following scores: 81 on the lab, 75 on the first major test, 97 on the second major test, and 84 on the final exam.
Answer:
The weighted average for the given scores is 84.27
Step-by-step explanation:
The weighted average can be calculated from the formula
Weighted average = [tex]\frac{\Sigma wx}{\Sigma w}[/tex]
Where w is the weight
and x is the score
The scores are 81, 75, 97, and 84 while their respective weights are 21% (0.21), 22.5%(0.225), 22.5%(0.225), and 34%(0.34).
From the formula
Weighted average = [tex]\frac{\Sigma wx}{\Sigma w}[/tex]
Since we have four sets of values, we can write that
Weighted average = [tex]\frac{\Sigma wx}{\Sigma w}[/tex] = [tex]\frac{w_{1}x_{1} + w_{2}x_{2} + w_{3}x_{3} + w_{4}x_{4}}{w_{1} + w_{2} + w_{3} + w_{4}}[/tex]
Let 81, 75, 97, and 84 be [tex]w_{1}, w_{2}, w_{3},[/tex] and [tex]w_{4}[/tex] respectively; then
0.21, 0.225, 0.225, and 0.34 will be [tex]x_{1}, x_{2}, x_{3},[/tex] and [tex]x_{4}[/tex] respectively.
∴ Weighted average = [tex]\frac{(81)(0.21)+(75)(0.225)+ (97)(0.225) +(84)(0.34)}{0.21+0.225+0.225+0.34}[/tex]
Weighted average = [tex]\frac{17.01+16.875+21.825+28.56}{1}[/tex]
Weighted average = 84.27
Hence, the weighted average is 84.27
Who founded the most successful mission in texas?
PLEASE BE FAST
Answer:
San Antonio de Valero Mission.
Step-by-step explanation:
San Antonio de Valero, one of five Spanish missions established by Franciscans in what is now San Antonio, is most commonly known as the site of the battle of the Alamo (1836).
plz mark as brainliest
Answer:
San Antonio de Valero Missione
Step-by-step explanation: Antonio de Valero, one of five Spanish missions established by Franciscans in what is now San Antonio, is most commonly known as the site of the battle of the Alamo (1836).
A school had to buy 63 new science books and it ended up costing $3,622.50
total. Write an equation that can be used to express the relationship between
the total cost(t) and the number of books(b) purchased,
Caroline scored 85, 88 and 89 on three of her
four tests. If her average score for all tests, what
did she score on her fourth test?
Answer:
What is the average score?
Step-by-step explanation:
If it was 84.5, then the missing number is 86
if it was 84.75, then the missing number is 87
If you tell me what the average is, i'll tell u the right answer in case it's not here.
Let me know if my answer is right
Answer:
It depends on the average score
Step-by-step explanation:
what is the average score ? put it in the comments and i will answer it in the comments
can i get Brainliest???
The local cable company charges $90 per month for basic and $12 per month for each additional premium cable channel.The function c(x)=90x+12x represents the monthly charge (in dollars),where x represents the number of additional premium channels.How many additional premium channels would you have ordered if your bill wad $114 per month?
Answer:
2 additional premium channels
Step-by-step explanation:
Using the given function, we substitute c(x) = 114 and solve for x:
114 =90 + 12x
Subtract 90 from both sides:
24=12x
Divide both sides by 12:
2=x
So you have ordered 2 additional premium channels.
2 additional premium channels would you have ordered if your bill was $114 per month.
The given function is c(x)=90+12x.
What is the function?Functions are the fundamental part of the calculus in mathematics. The functions are the special types of relations. A function in math is visualized as a rule, which gives a unique output for every input x.
We need to find the number of additional premium channels would you have ordered if your bill was $114 per month.
So, 114=90+12x
⇒ 12x=114-90
⇒ 12x=24
⇒ x=2
Therefore, 2 additional premium channels would you have ordered if your bill was $114 per month.
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Find the new price for the markup given. Round to the nearest cent if necessary.
$4.00 marked up 87%
7.34 greater than 7.304
Answer:
7.34 is greater than 7.304
Step-by-step explanation:
Jacob is buying ice cream. He can choose one flavor: chocolate, strawberry, vanilla, or rocky road. He can put his ice cream in a sugar cone, a waffle cone, or a cup. What is the probability that Jacob will choose chocolate ice cream in a waffle cone?
Answer:
1/3 is the Probability, don't trust my answer much tho/:
It is well documented that active maternal smoking during pregnancy is associated with lower-birth-weight babies. Researchers wanted to determine if there is a relationship between paternal smoking habits and birth weight. The researchers administered a questionnaire to each parent of newborn infants. One question asked whether the individual smoked regularly. Because the survey was administered within 15 days of birth, it was assumed that any regular smokers were also regular smokers during pregnancy. Birth weights for the babies (in grams) of nonsmoking mothers were obtained and divided into two groups, nonsmoking fathers and smoking fathers. The accompanying data are representative of the data collected by the researchers. The researchers concluded that the birth weight of babies whose father smoked was less than the birth weight of babies whose father did not smoke. Complete parts (a) through (g) below.
a.) It is____________ (a designed experiment OR an observational study) because the researchers ____________(intentionally changed OR the value of an explanatory variable.
b.) What is the explanatory variable? What is the response variable?
Explanatory variable is ___________(whether or not the mothers smoked OR smokers OR whether or not the father smoked OR non smokers OR birth weight.)
Response variable is__________ (whether or not the mothers smoked OR smokers OR whether or not the father smoked OR non smokers OR birth weight.)
c.) Can you think of any lurking variables that may affect the results of the study? Select all that apply.
-Shopping habits
-Eating habits
-Father's weight
-Exercise habits
-Whether the mother received prenatal care
d.) In the article, the researchers stated that "birthweights were adjusted for possibleconfounders..." What does this mean?
-The researchers attempted to adjust their results for any variables that may also be related to smokers.
-The researchers attempted to adjust their results for any variables that may also be related to nonsmokers.
-The researchers attempted to adjust their results for any variables that may also be related to birth weight.
-The researchers attempted to adjust their results for any variables that may also be related to father's weight.
e.) Determine the summary statistics.
Nonsmokers mean=___ grams
Nonsmokers median=____ grams
Nonsmokers standard deviation= ____ grams
Nonsmokers first quartile=_____ grams
Nonsmokers third quartile=____ grams
Smokers mean=___ grams
Smokers median=____ grams
Smokers standard deviation= ____ grams
Smokers first quartile=_____ grams
Smokers third quartile=____ grams
f.) Interpret the first quartile for both the nonsmoker and smoker group.
OPTION A. For the two groups, 50% of infants in each group have birth weights less than or equal to the first quartile for thatgroup, and 50% of infants in each group have birth weights greater than the first quartile for that group.
OPTION B.For the two groups, 25% of infants in each group have birth weights less than or equal to the first quartile for thatgroup, and 75% of infants in each group have birth weights greater than the first quartile for that group.
OPTION C.For the two groups, 75% of infants in each group have birth weights less than or equal to the first quartile for thatgroup, and 25% of infants in each group have birth weights greater than the first quartile for that group.
g.) Draw a side-by-side boxplot of the data. Does the side-by-side boxplot confirm the conclusions of the study?
Does the side-by-side boxplot confirm the conclusions of thestudy?
OPTION A.The boxplot does not confirm the study as the medians are very close to each other; the third quartiles are noticeablydifferent, but not the medians.
OPTION B.The boxplot does not confirm the study as the median for smokers is significantly more than the median for nonsmokers; the median is located close to the third quartile of nonsmokers.
OPTION C. The boxplot confirms the study as the median for smokers is significantly more than the median for nonsmokers; the median is located close to the third quartile of nonsmokers.
OPTION D. The boxplot confirms the study as the median for smokers is significantly less than the median for nonsmokers; the median is located close to the first quartile
Explanation:
a. It is an observatory study because the researchers did not alter the variables such as assigning some parents to smoke.
b. The explanatory variable here since the research is focused on fathers is: whether or not the father smoked. While the response variable is: birth weight.
c. Some of the lurking variables that can affect the results of the study includes;
-Eating habits
-Father's weight
d. It means the researchers attempted to adjust their results for any variables that may not be related to birth weight. In other words, they removed any bias results.
e.) Determine the summary statistics.
Nonsmokers mean= 3665.5 grams
Nonsmokers median= 3693.5 grams
Nonsmokers standard deviation= 356
Nonsmokers first quartile= 3432.8 grams
Nonsmokers third quartile= 3980.5 grams
Smokers mean= 3460.4 grams
Smokers median= 3475 grams
Smokers standard deviation= 452.6 grams
Smokers first quartile= 3113.3 grams
Smokers second quartile= 3828.3 grams
f.) The first quartile for both the nonsmoker and smoker group can be interpreted as 25% (the first quartile) of infants have a birth weight below 3432.8 grams. While for smokers 25% of their infants had birth weight below 3113.3 grams. (or OPTIONS B).
g.) OPTION D. The boxplot confirms the study as the median for smokers is significantly less than the median for nonsmokers; the median is located close to the first quartile
which custom format will make the cells in column a appear like column b in excel
Which expression is equivalent to
1/2 - (-8)
Choose 1 answer:
Answer:
1/2 + 8
Step-by-step explanation:
A negative and a negative multiplied together equal a positive. Paranthesis ( ) is another way for showing multiplication.
-(-) = +
Help me fast
P(Green Pod) =
Please answer fast please
Answer:
You are finding how much of each there is like
Step-by-step explanation:
Green=8
White=5
purple=9
If this does not help im sorry
the opposite of 45 divided by 5
Answer:
-9
Step-by-step explanation:
Answer:
the opposite of division is multiplication
3 pounds of steak costs $21. What is the unit rate for the steak
Answer:
Unit rate for the stake is 7$.
Step-by-step explanation:
You can do a chart to help you.
Steak : Cost
3 : $21
2 : $14
1 : $7 Here's your unit rate.
I hope this helps :)
To get snacks for a class trip, Clare went to the "bulk"
section of the grocery store, where she could buy any
quantity of a product and the prices are usually good.
Clare purchased:
+ some salted almonds at $6 a pound
+ some dried figs at $9 per pound.
She spent $75 before tax.
To do: Write an equation that describes the relationship
between pounds of figs and pounds of almonds that
Clare bought, and the dollar amount that she paid.
NOTE:
Let x = pounds of figs
Let y = pounds of almonds
Answer:6x+9y=75
Step-by-step explanation:
The equation shows the relationship between pounds of figs and pounds of almonds that Clare bought, and the dollar amount that she paid will be 6x + 9y = 75.
What is an expression?The mathematical expression is the combination of numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also be used to denote the logical syntax's operation order and other properties.
Given that to get snacks for a class trip, Clare went to the "bulk" section of the grocery store, where she could buy any quantity of a product and the prices are usually good. Clare purchased:
+ some salted almonds at $6 a pound
+ some dried figs at $9 per pound.
She spent $75 before tax.
The equation can be written as:-
Let x = pounds of figs
Let y = pounds of almonds
Cost of x pounds of figs = 6x
Cost of y pounds of almonds = 9y
Equation:- 6x + 9y = 75
Therefore, the equation shows the relationship between pounds of figs and pounds of almonds that Clare bought, and the dollar amount that she paid will be 6x + 9y = 75.
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ILL GIVE BRAINLY! 1. What is the product of a number and its multiplicative inverse?
2. Find the multiplicative inverse of each number.
A. 5/3
B. −1/5
C. −3
Answer:
A. -5/3
B. 1/5
C. 3
If you help me I will give u microwaved hamster
Answer:
if your suppose to be adding the fractions it will be 11 over 12
How to write in scientific notation
The answer to that is 4 × 10 ².
