Erin wants to raise her math grade to a 95 to improve her chances of winning a math scholarship. Her math average for
the last marking period was an 81. Erin decides she must raise her math average by 15% to meet her goal. Do you
agree? Why or why not? Support your written by writing out your work. plz help 50 point
Answers
Answer:
There's a very simple way to solve this kind of problem. All we have to do is change the percent to a decimal and multiply it by her current grade.
81 × .15 = 12.15
For our purposes, we'll just round it down to 12. But anyway, raising her grade by 15% would mean raising it by 12 points.
81 + 12 = 93
This would give her an average of 93, not 95. She'd need to raise her grade 18% from 81 to get to her goal.
look above
Related Questions
Good night! I need helppppp with math, easy for most people, just not for me lol
Answers
Answer:
3/4 should be left in the bottle
Mathew used his computer for 2 1/8 hours Tuesday evening and 2 1/4 hours on Wednesday evening. Which is the best estimate of the time Mathew used his computer on Tuesday and Wednesday evenings?
Answers
Answer:
He should use the computer less.
Step-by-step explanation:
It is bad for mathews eyes.
Can you please help me?
Answers
Answer:
9, 33/14
Step-by-step explanation:
1 whole and 5/6 x 1 whole and 2/7 =
11/6 x 9/7 which is 33/14.
Answer:
yes sure
Step-by-step explanation:
3/7 nd 4/5
not sure
Multiply (2x + y = 20) by 5 and you get
Answers
Answer:
10x +5y = 100
Step-by-step explanation:
Ig not sure
please help me. i will give brainliest.
The table shows the relationship between the diameter in kilometers of an oil spill and the time in days. A quadratic function can be used to model this relationship.
What is the best prediction of the time required for the oil spill to reach the diameter of 10 km?
A) 147 days
B) 200 days
C) 205 days
D) 233 days
Answers
Answer:
205 is my answerrrrrrrrrrr
The best prediction of the time required for the oil spill to reach a diameter of 10 km will be 147 days. Then the correct option is A.
What is a quadratic equation?The quadratic equation is given as ax² + bx + c = y. Then the degree of the equation will be 2.
The table shows the connection between the width in kilometers of an oil slick and the time in days. A capability can be utilized to show this relationship.
The equation at (2.4, 1) will be given as,
2.4 = a (1)² + b (1) + c
2.4 = a + b + c ...1
The equation at (9.4, 2) will be given as,
9.4= a (2)² + b (2) + c
9.4 = 4a + 2b + c ...2
The equation at (21.1, 3) will be given as,
21.1 = a (3)² + b (3) + c
21.1 = 9a + 3b + c ...
Solve equations 1, 2, and 3 with the calculator, then we have
a = 2.35, b = -0.05, c = 0.1
Then the equation is given as,
y = 2.35x² - 0.05x + 0.1
The best prediction of the time required for the oil spill to reach a diameter of 10 km will be
y = 2.35(10)² - 0.05(10) + 0.1
y = 235 - 0.5 + 0.1
y = 235.5
The value of y is nearer to the value of 233. Then the value of y will be 233 days.
The best prediction of the time required for the oil spill to reach a diameter of 10 km will be 233 days. Then the correct option is D.
More about the quadratic equation link is given below.
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444. IU
5. Which number is most significant? 456.2, 459. 456.222 )
(2 Points)
459
456.2
456.222
Answers
Answer:
That is the third one ：
456.222
because it has the most numbers 4,5,6 and point . 2,2,2
Montella selling roses for four dollars each to raise money for a local charity if you spends 184 to buy the flowers roses Xmas Montel self to make a profit of at least $360
Answers
Complete question :
Montel is selling roses for $4 each to raise money for a local charity. If he spend $184 to buy the flowers, how many roses ,x, must Montel sell to make a profit of at least $360
Answer:
x > 136
Step-by-step explanation:
To make a profit of $360
Selling price per rose = $4
Amount spent on roses = $184
To male a profit of at least $360
The total revenue made from rose sale must be :
Cost price + profit made
$184 + $360 = $544
To make a profit of at least, $360, them he must sell at least :
$544 / selling price
$544 / $4
= 136
x > 136
I REALLY NEED SOME HELP! THANK YOU SO MUCH!
Answers
Rewrite the following equation in slope-intercept form.
16x + 10y = 15
plz help
Answers
Answer:
im not sure im really sorry
Step-by-step explanation:
im answering this because i have the same question
Austin is going for a run. He takes 4 hours to run 25.6 miles. What is his speed
Answers
Answer: 6.4 miles per hour
Step-by-step explanation:
25.6 miles/4 hours = 6.4 miles per hour
Order the value of the quotient from the smallest (top) to largest (bottom)
2/7 divided by 4/5
1 6/7 divided by 3
6/11 divided by 2 2/3
3/10 divided by 1/8
Answers
Answer:
6/11 divided by 2 2/3 (=9/44)
2/7 divided by 4/5 (=5/14 or 15/42 scaled up)
1 6/7 divided by 3 (= 13/21 or 26/42 scaled up)
3/10 divided by 1/8 (=2 2/5)
Step-by-step explanation:
You cannot divide a fraction by a fraction. Instead, multiply by the reciprocal ( flip it)
2/7 divided by 4/5= 2/7 x 5/4
Multiply straight across the top, 2x5= 10
10 is the numerator
Now multiply straight across the bottom.
7x4= 28
28 is the denominator.
10/28 is the answer to this problem, however it can be simplified. Both 10 and 28 are divisible by 2. This simplifies to 5/14.
For mixed numbers, you first have to make them improper fractions.
Ex: 2 2/3
Take the denominator (3) multiply it by the whole number (2) and add the numerator (2)
3x2=6 (now add the remaining 2 from the numerator) 6+2= 8. 8 is your new numerator and you will keep the existing denominator of 3 making the improper fraction 8/3.
PLEASE HELP!!!!!!!!Drag the number cards to create a correct sentence
Answers
Reasoning: there are multiple possible answers, and here is an acceptable one.
The sequence that fulfills all the conditions is 4% of 250 = 10.
What is the percentage?A percentage is a value per hundredth. Percentages can be converted into decimals and fractions by dividing the percentage value by a hundred.
From the table and a bit of thinking, we can construct a sequence that has whole value and percentage value as integers.
After trying with different sequences and by hit and trial we found a sequence that is,
4% of 250 = 10 which fills all the conditions.
learn more about percentages here :
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HELP ANSWER EASY EXPONENTS
Answers
Please help on this question:
Answers
Answer:
Step-by-step explanation:
Helen spent 7.75 to purchase 23 snack sized bags of chips (c) and pretzels (p). Chips cost 0.25 and pretzels cost 0.50. How much of each type of snack did she get?
Answers
Answer:
15 chips and 8 pretzels
Step-by-step explanation:
According to the problem, calculation of the given data are as follows,
Total spent = $7.75
Number of snacks = 23
Chips cost = $0.25
Pretzels cost = $0.50
Let number of chips = X
So, number of pretzels = 23 - X
So, we can calculate number of snacks by using following equation
0.25X + 0.50 ( 23 - X) = $7.75
0.25X + 11.50 - 0.50X = 7.75
0.25X - 0.50X = 7.75 - 11.5
-0.25X = -3.75
X = -3.75 ÷ -0.25 = 15
Hence, Number of chips = 15
Number of Pretzels = 23 - 15 = 8
Evaluate
15+ (29-13)=
Answers
29 - 13 is 16
16 + 15 is 31
A university has 40,140 students. In a random sample of 210 students, 14 speak three or more languages. Predict the number of students at the university who speak three or more languages.
Answers
Answer:
2676 students
Step-by-step explanation:
Total number of students =. 40,140
During study:
Sample size = 210
Number of samples who speak 3 or more languages = 14
Proportion who speak 3 or more languages :
14 / 210 = 0.0666666
Applying the proportion to the total. Population :
0.0666666 * total number of students
0.0666666 * 40140
= 2675.997324
= approximately 2676 students
I’m very confused please help!
Answers
Answer:
x=2, y=-2
Step-by-step explanation:
2(b+c) please help me with this question.
Answers
Answer:
2b + 2c
Step-by-step explanation:
Use distributive property: 2b + 2c
______________________________
1.) Use distributive property to multiply:[tex]2[/tex] × [tex]b=2b[/tex][tex]2[/tex] × [tex]c=2c[/tex]
So your answer is [tex]\bold{2b+2c}[/tex].
______________________________
help me broskiiiii...
Answers
Answer:
The answer is 36
Step-by-step explanation:
Brainlest pls :)
Step by step- subtract the powers
What is the perimeter and area
Answers
Answer:
Perimeter = 18
6 + 6 + 3 + 3=18
Area= 18
6 x 3 = 18
Step-by-step explanation:
I hope this can help!!!
A diameter is a chord.
True or false and why?
Answers
Answer:
true.
A chord that passes through the center of a circle is called a diameter and is the longest chord.
Step-by-step explanation:
A diameter satisfies the definition of a chord, however, a chord is not necessarily a diameter. This is because every diameter passes through the center of a circle, but some chords do not pass through the center. Thus, it can be stated, every diameter is a chord, but not every chord is a diameter.
i hope this helps you. :)
help.......................
Answers
Answer:
x=7
Step-by-step explanation:
HOPE THIS HELPS!!!
What is the product?
(91 - 4)(-91-4)
-8102-16
-811.+16
-8112-721+16
O-811 +72+ +16
Answers
Answer:
-8265
Step-by-step explanation:
The product for the expression is -8265.
What is an expression?An expression contains one or more terms with addition, subtraction, multiplication, and division.
We always combine the like terms in an expression when we simplify.
We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.
Example:
1 + 3x + 4y = 7 is an expression.com
3 + 4 is an expression.
2 x 4 + 6 x 7 – 9 is an expression.
33 + 77 – 88 is an expression.
We have,
The product of (91 - 4) and (-91 - 4) can be found using the FOIL method of multiplying two binomials:
(91 - 4)(-91 - 4)
= 91(-91) + 91(-4) - 4(-91) - 4(-4)
= -8281 - 364 + 364 + 16
= -8281 + 16
= -8265
Therefore,
The product is -8265.
Learn more about expressions here:
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At a used bookstore, Cindybought 2 paperback books for $1.75 and some children’s books for $0.75 each, including tax. She spent a total of $5.75. How many children’s books did Cindybuy?
Answers
Answer:
3
Step-by-step explanation:
5.75 - (1.75 × 2) = 2.25
2.25 ÷ 0.75 = 3
Answer: Cindy bought 3 children books.
Step-by-step explanation:
$1.75 + $1.75 = $3.50
$5.75 - $3.50 = $2.25
$2.25 ÷ $ 0.75 = 3
One of the teachers at a school is chosen at random. The probability that this teacher is female is 3/5 There are 36 male teachers at the school. Work out the total number of teachers at the school.
Answers
Answer:
90 total teachers
Step-by-step explanation:
The total number of teachers at the school is 90 whereas there are 36 female and 54 male teachers.
Probability-based problem:What information do we have?
Probability teacher is female = 3/5
Number of male teachers = 36
Probability teacher is male = 1 - (3/5)
Probability teacher is male = 2/5
Total number of teacher = (5/2)(36) Total number of teacher = (5)(18)Total number of teacher = 90 teachers
the total number of teachers in the school is 90 teachers.
Find out more information about 'Probability'.
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How many t-shirts could be made where the cost would be the same from both companies?
Answers
Sergio tiene p pinturas en su colección de arte.
Él y otros coleccionistas de pintura locales
acordaron donar 48 pinturas al museo local.
Cada uno de los 12 coleccionistas donarán la
misma cantidad de pinturas.
¿Cuántas pinturas tendrá Sergio en su colección
de arte después de su donación?
Escribe tu respuesta como una expresión.
pinturas.
¿Atorado? Ve un video o usa una pista.
Answers
Answer: P-4
Step-by-step explanation: 48 cuadros donada por 12 coleccionistas podemos decir que cada coleccionista donará 4 cuadros.
PLEASE HELP! I WILL MARK BRAINLIEST IF CORRECT!
The chart below displays information regarding the number of picture frames sold by a store in a given month.
According to the chart, what fraction of the frames sold during the four-month period were sold in march? Hint: Determine the total number of frames sold and then write a fraction with March/total and simplify.
a. 3/10
b. 1/4
c. 1/5
d. 1/6
e. 1/10
Answers
Answer:
1/4
Step-by-step explanation:
Calculate the frames of each month:
January = 350
February = 100
March = 250
April = 300
Solve
[tex]\frac{March}{Total} = \frac{250}{350 + 100 + 250 + 300} = \frac{250}{1000}[/tex]
Simplify
[tex]\frac{250}{1000} = \frac{25}{100}= \frac{1}{4}[/tex]
2.
Find the slope of the line.
A. 0
B. -2
C. Undefined
D. 2
Answers
Answer:
A. 0
Step-by-step explanation:
2-2/4-(-5)=0/9
Answer:
Answer: Undefined
Step-by-step explanation:
Its undefined because the line is vertical. This is also why the answer isnt zero.
Hope this helps (: