Step-by-step explanation:
Amelia got 56% of 75 so
(56/100)*75=(56*75)/100=4200/100=42
Hayden got 8/15 of 75 so
(8/15)*75=(8*75)/15=600/15=40
and Sophie that got 43 out of 75
so we see that Sophie got the highest points.
Given parameters:
Total test score = 75marks
Percentage of Amelia score = 56%
Fraction of Hayden's score = [tex]\frac{8}{15}[/tex]
Sophie's score = 43marks
Unknown:
The person with the highest score = ?
Solution:
Since total score = 75marks;
Amelia's score = [tex]\frac{56}{100} x 75[/tex] = 42marks
Hayden's score = [tex]\frac{8}{15} x 75[/tex] = 40marks
Sophie's score = 43 marks
The person with the highest score is Sophie with a mark of 43.
A dad has three sons. He shares an amount of $30,000 among his three sons. One son deposited his amount in a bank that provides him interest at the rate of 7%. The second son deposited his sum in a mutual fund that gave him returns at a rate of 8%. The third son invested his in another bank that provided him an interest rate of 6%. The second sons share is 1000 more than that of the third son. The total interest that they got was $2110. Calculate each person's share if the first sons share is equal the second son and the third son put together.
Answer:
First son receives $15000
Second son receives $8000
Third son receives $7000.
Step-by-step explanation:
Let first son receive $x and deposit it at 7%
Second son receive $y and deposit in 8%
Third son receive $z and deposit in 6%
Now, let's set up equation using the given information.
The second son share is 1000 more than the third son.
So, we can set up equation as
y= 1000+z
First son share is equal the second son and the third son put together.
So, x=y+z
And we can set up equation for total 30000 as
x+y+z=30000
Plug in y as 1000+z and x as y+z
We get third equation as
y+z+1000+z+z=30000
Plug in again y as 1000+z
It gives,
1000+z+z+1000+z+z=30000
Combine like terms,
2000+4z=30000
Subtract both sides 2000
4z=28000
Divide both sides by 4
z=7000
Now, plug in z as 7000 into y=1000+z to get y =8000
Now, x =y+z plug in the y and z values
x= 8000+7000=15000
Let's check with interest,
15000(7%)+8000(8%)+7000(6%)=2110
1050+640+420= 2110
2110=2110.
Yes! The calculations are correct!
Write the equation of a line through point (-5,1) and perpendicular to 2x - 3y = 6.
Answer:
y = 2/3x - 2
Step-by-step explanation:
Step 1:
y = mx + b Slope Intercept Form
Step 2:
2x - 3y = 6 Equation
Step 3:
- 3y = - 2x + 6 Subtract 2x on both sides
Step 4:
y = 2/3x - 2 Divide - 3 on both sides
Answer:
y = 2/3x - 2
Hope This Helps :)
What value of 'x' would make lines n and m parallel?
Which equation represents the unit fraction shown in the diagram? A grid model with 100 squares. 20 squares are shaded. StartFraction 20 Over 100 EndFraction = one-fifth StartFraction 20 Over 100 EndFraction = two-fifths StartFraction 20 Over 100 EndFraction = one-half StartFraction 20 Over 100 EndFraction = StartFraction 1 Over 10 EndFraction
Answer:
the anserw is c
Step-by-step explanation:
i took the test
Which of this following is an expression
Answer:
Step-by-step explanation:
expressions dont have an equal sign but they have either a plus, minus, multiplying or dividing sign
True or false: When you multiply or divide an inequality by a negative, you flip the inequality sign
Plz tell me
Answer:
[tex]\boxed {\tt True}[/tex]
Step-by-step explanation:
This is true. Whenever you divide or multiply an inequality by a negative number, you must flip the inequality sign.
Here is an example:
[tex]-9x>27[/tex]
We have to divide both sides of the inequality by -9. Since it is a negative number, flip the inequality sign.
[tex]\frac{-9x}{-9} <\frac{27}{-9}[/tex]
[tex]x<\frac{27}{-9}[/tex]
[tex]x<-3[/tex]
So, it is true that you must flip the inequality sign when multiplying or dividing by a negative number.
Answer:
true
Step-by-step explanation:
yes true
..............
which expression is equivalent to 2(n-1)-2s(-2n-3)
A) 4sn+6s +2n-2
B)-n-3-4sn+3s
C)2+[tex]s_7[/tex] ×n+6n
D)2+8n+6sn
Half the product of two numbers x and y minus five times a third number z
Answer: (X times Y) 1/2 - 5 ( Z/3 )
Step-by-step explanation:
What is the length of the diagonal of the rectangle?
Answer:
21.5
HERE'S YOUR ANSWER....
HOW MUCH WAS IT HELPFUL
Which ones are equivalent?
40/1000 and 40%
6/5 and 120%
50/33 and 117%
1/8 and 12.5%
1/3 and 30%
Answer:
1/8= 0.125
To have a percentage, multiply by 100
0.125 x 100 = 12.5%
Hope this helps ! : )
The number of users of social media has increased significantly since the year 2001. In fact, the approximate number of users has tripled each year. It was reported that in 2005 there were 3 million users of social media.
a. Assuming that the number of users continues to triple each year, for the next three years, determine the number of users in 2006, 2007, and 2008.
How many users were there in 2006?
Answer:
9 million
Step-by-step explanation:
3 million × 3 = 9 millionI hope this helps!
The number of users in 2006, 2007, and 2008 will be 9 million, 27 million, and 51 million respectively.
What is a sequence?It is defined as the systematic way of representing the data that follows a certain rule of arithmetic.
Divergent sequences are those in which the terms never stabilize; instead, they constantly increase or decrease as n approaches infinity, approaching either infinity or -infinity.
It is given that, the approximate number of users has tripled each year and in 2005 there were 3 million users of social media.
The number of users in 2006 = 3 × number of users in 2005]
The number of users in 2006 = 3 × 3 million
The number of users in 2006 = 9 million
The number of users in 2007 = 3 × number of users in 2006
The number of users in 2007 = 3 × 9 million
The number of users in 2007 = 27 million
Thus, the number of users in 2006, 2007, and 2008 will be 9 million, 27 million, and 51 million respectively.
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Solve this Proportion. If necessary round to the nearest hundredth:
5/a = 30/54
A technician is launching an aerial firework from a tower. The height of the firework is measured in feet and the time is measured in seconds. A function that models the fireworks vertical distance with no respect to time,x, is f(x)=-16x^+96x+112 What information does this form of equation give about the firework
Answer:
The equation gives only the total vertical distance traveled by the firework or maximum height reached by the firework
Step-by-step explanation:
Given;
A function that models the fireworks vertical distance with no respect to time,x, as;
f(x)=-16x^+96x+112
The equation gives only the total vertical distance traveled by the firework, it does not account for the position of the firework at a particular time.
Thus, with the given function we can only estimate the maximum height reached by the firework.
Why is graphite soft
Answer:
because it has a weak inter molecular forces between its layers
Answer:
Its compound
Step-by-step explanation:
A family of five went out to dinner at HogTastic Pit BBQ. They all ordered the buffet and drink at $12.80 each. They left a 15% gratuity for the waitress on the after-tax bill. Based on a tax rate of 7.5%, they ended up paying a total of $ for dinner.
Answer:
$79.12
Step-by-step explanation:
Given the following :
Cost per order = $12.80
Number of people = 5
Gratuity left for waitress = 15%
Tax rate = 7.5%
Total bill before tax:
$12.80 * 5 = $64
Bill after tax:
$64 * (1 + 7.5%)
64 - 4.8
= $68.80
Final amount paid:
After tax bill + (after tax bill * Gratuity rate)
$68.80 + (68.80 * 15%)
= $79.12
(01.02 LC)Simplify 5 − (−1).
Answer:
Your answer is: 6
Simplify the expression.
6
Step-by-step explanation:
Hope this helped : )
Answer:
6
Step-by-step explanation:
5- (-1), the negative signs will be positive signs, 5 + 1, so we'll get 6.
One gym has offers. Write out an equation to join and set it equal to your budget. Budget = 275, membership fees = 25 per month, flat discount = 75. How many months of a gym membership I can afford. its for 8th grade so dnt give a very complicated one thx
Answer:
8 months
Step-by-step explanation:
Given that,
Total budget = 275
Membership fee = 25 per month
Flat discount = 75
We need to find for how many months of gym membership I can afford. The equation will look like :
25x=275-75
25x=200
x = 8 months
Hence, he can afford gym membership for 8 months.
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A tropical species of mite named Archegozetes longisetosus is the record holder for the strongest insect in
the world. It can lift up to 1.182 x 103 times its own weight. If a person who weighed 100 pounds were as
strong as this insect, how much could that person lift? Enter the answer using scientific notation.
Step-b
The person could lift
pounds.
Print
Answer:
Ummm yeah yeah 123_3
Step-by-step explanation:
1x1+3
College student makes decorative Styrofoam Lions and Husky's which she sells each year. Each one uses 8 oz of Styrofoam and takes 35 minutes to make. Each husky uses 12 oz of Styrofoam and takes 20 minutes to me. Furthermore, each line brings in a profit of $2.50 while each husky brings in a profit of $3. If she only has 3840 ounces of Styrofoam to work with and has 9650 minutes, how many of each animal should she make in order to maximize profits? What is the maximum profit possible?
Answer:
She should make 122 Styrofoam lions and 268 Styrofoam Husky's
The maximum profit, she makes is $1109
Step-by-step explanation:
The given information are;
The volume required to make each lion = 8 oz
The time it takes to make each lion = 35 minutes
The amount of profit each lion brings = $2.50
The volume required to make each Husky = 12 oz
The time it takes to make each Husky = 20 minutes
The amount of profit each Husky brings = $3
Let the number of lion Styrofoam cups she makes = x
Let the number of Husky Styrofoam cups she makes = y
Therefore, we have;
x × 35 + y × 20 = 9650..........(1)
x × 8 + y × 12 = 3840.............(2)
Dividing equation (2) by 8 and making x the subject, we get;
x × 8/8 + y × 12/8 = 3840/8
x + 4/3·y = 480
x = 480 - 4/3·y
Substituting the value of x in equation (1) gives;
(480 - 4/3·y) × 35 + y × 20 = 9650
16800 - 80/3·y = 9650
y = 268.125
x = 480 - 4/3·y = 480 - 4/3×268.125 = 122.5
Therefore, she can make 122 Styrofoam lions and 268 Styrofoam Husky's
The maximum profit, she makes is therefore given by the following equation;
The maximum profit = 122 × 2.5 + 268 × 3 = $1109.
you are going on vacation and leaving your dog in a kennel. kennel a charges $25 per day which includes a one-time grooming treatment. kennel b charges $20 per day and a one-time fee of $30 for grooming. if your vacation is 7 days long, which kennel should you choose? explain.
Answer:
is this a quiz?
Step-by-step explanation:
Ed training for a race. He ran 12.56 miles on one day, 12.98 miles the second day, and 13.04 miles on the third day.what is his combined distance for the first three days
Ed's combined distance for the first three days is 38.58 miles.
Given that, Ed ran 12.56 miles on one day, 12.98 miles the second day, and 13.04 miles on the third day.
What are decimal numbers?Decimals are one of the types of numbers, which has a whole number and the fractional part separated by a decimal point. The dot present between the whole number and fractions part is called the decimal point.
The total distance can be determined as follows:
Total distance = 12.56+12.98+13.04
= 38.58 miles
Hence, Ed's combined distance for the first three days is 38.58 miles.
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What number is 2/3 of 15
Step-by-step explanation:
2/3 of 15
2*5(3*5=15)
10
What is 3x+4=10 solve for x
Answer:
x=2
Step-by-step explanation:
3x+4=10
3x=6
x=2
Answer:
x=2
Step-by-step explanation:
3x+4=10
3x=6 by subtracting the 4
x=2 by dividing the 3
A student walks 2 km in 30 minutes. What is the student’s average speed in km/m?
Answer:
4km per hour
Step-by-step explanation:
Which number line and expression show how to find the distance from 4 to 1
Answer:
C.
Step-by-step explanation:
The distance between two numbers on the number line is the absolute value of the difference of the numbers.
The distance between 4 and 1 is
|4 - 1|
Answer: C.
Answer:
c
Step-by-step explanation:
its the proper way
Taylor multiplied 8.25 x 104 and 0.4 x 104 and got 8.65 x 104
Explain Taylor's mistake and give the correct answer. (1 pt. for the explanation and 1 pt. for the correct answer.)
Answer:
Taylor added. The correct answer is 3.3*10^8
Step-by-step explanation:
Taylor haven't consider the exponents properties and multiplication was also incorrect.
What are exponents?Exponent refers to how many times a number multiplied by itself.
Given:
8.25 x [tex]10^{4}[/tex] and 0.4 x [tex]10^{4}[/tex]
Now, multiplying by considering exponents as
a^m * a^n = a^( m+ n)
So,
=8.25 * 0.4 * [tex](10) ^{4+4}[/tex]
= 3.3 * [tex]10^8[/tex]
Hence, Taylor haven't consider the exponents properties and multiplication was also incorrect.
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11=3−4/3x solve for x
11 = 3 - 4/3x
11 = (9 - 4x)/3
33 = 9 - 4x
24 = -4x
24/4 = - x
x = -6
pls help!!!!!!!!!!!!!!
a. 7
b. 3.5
c. 5
d. 10
Answer:
I think with all the savings o will rather go with, a will I make some research
Simplify -2√18
Would appreciate an explanation!
Answer:
-6√2
Step-by-step explanation:
Since the largest square root in 18 is 9 we can separate it out as shown:
√18 = √9√2
We can then solve this out to 3√2
Since we have a negative two on the outside, we would multiply it by 3 ( from the 3√2).
Work:
-2√18
-2√9√2
-2(3)√2
-6√2
Answer:
Step-by-step explanation:
Prime factorize 18
[tex]-2\sqrt{18}=-2*\sqrt{3*3*2}= -2*3\sqrt{2} \\\\ = -6\sqrt{2}[/tex]