Maxine spent 15 hours doing her homework last week. This week she spent 18 hours doing homework. She says that she spent 120% more time doing homework this week. Is she correct? Show your work to justify your decision.

Answers

Answer 1

Answer:

Yes

Explanation: 120 % = 1.2

If Maxine is correct, then she spent  1.2

times the hours she did homework than last week.

15 ⋅ 1.2 = 18.0 = 18

15 hours ⋅ 1.2 = 18.0 hours = 18 hours

This means that Maxine is correct.


Related Questions

What is the domain of f?

Answers

Answer:

See below.

Step-by-step explanation:

The domain is the x values involved in the equation/graph. The lines seemingly goes from -5 to 6. The x values between those points also count since there is a line. Therefore, the domain of f is [-5, 6]. The brackets are used since the dots on -5 and 6 are shaded in meaning they also count for the domain.

Interval Notation: [-5, 6]

Inequality Notation: -5 ≤ x ≤ 6

1) Write an equation of a line that
is parallel to y = -5x + 2 and
passes through (-1, 4).

Answers

Answer:

y=-5x + 4

Step-by-step explanation:

Answer:

y=-5x-1

Step-by-step explanation:

It goes through the point (-1,4)

4) [59, 59,59,59,100,89,80,89] Find The Median and The mode​

Answers

Median is 69.5
Mode is 59

which graph represents the solution for the equation 1/6x=-2x+5

Answers

Answer:

Pllsssss Pllsssss Pllsssss

Step-by-step explanation:

Pllsssss Pllsssss Pllsssss

The hypotenuse of a 45°-45°-90° triangle measures 7 StartRoot 2 EndRoot units.

A right triangle is shown. The hypotenuse has a length of 7 StartRoot 2 EndRoot and the lengths of the other 2 sides are congruent.

What is the length of one leg of the triangle?

7 units
7 StartRoot 2 EndRoot units
14 units
14 StartRoot 2 EndRoot units

Answers

Answer:

7 units

Step-by-step explanation:

Given is a 45°-45°-90° triangle.

Measure of Hypotenuse = 7 StartRoot 2 EndRoot units.

In a 45°-45°-90° triangle, measures of perpendicular legs is one upon square root 2 times of the measure of Hypotenuse.

[tex] \therefore \: measure \: of \: one \: leg \\ \\ = \frac{1}{ \sqrt{2} } \times 7 \sqrt{2} \\ \\ = 7 \: units[/tex]

Answer:

A. 7 units 2021 edg

Step-by-step explanation:

true or false: is 1 and 2 adjacent angles (look at picture)​

Answers

Answer:

True

Step-by-step explanation:

1 and 2 are next to each other and adjacent means next to each other.

It is true, they both share a vertex and a side.:)

you deposit $500 in an account that pays 5% annual interest compound continuously what is the balance after 3 years

Answers

Answer:

So I= p x r/100 x t

= 500 x 5/100 x 3

= 25 x 3

$75 interest

Balnce will be $575

Mary pays $72 for sand. If the cost per pound is $0.45, how many pounds did she purchase?

Answers

Answer:

Mary purchased 160 pounds of sand

Step-by-step explanation:

$72÷$0.45=160

Make this brainiest if you felt this helped you the most have an awesome day or night!

From 1997 - 2001 the number n (in millions) of black-and-white TV S sold in the U.S. Can be modeled by n = 26.8 * (0.85) ^ t where t is the number of years since 1997.

Answers

Question

a) What is the decay factor?

b) What is the percent decrease?

c) Estimate the number of black and white TV's  sold in 1999.

Answer:

a. Decay factor = 0.85

b. Percent decrease = 15%

c. 19.363  million TVs were sold

Step-by-step explanation:

Given

[tex]n = 26.8(0.85)^t[/tex]

Solving (a): The decay factor

An exponential function has the form

[tex]y = ab^x[/tex]

Where b is:

[tex]b = decay\ factor\ or\ growth\ factor[/tex]

By comparison:

[tex]b = 0.85[/tex]

Solving (b): Percentage decrease:

Percentage decrease P is calculated as follows:

[tex]P = 1 - b[/tex]

Substitute 0.85 for b

[tex]P = 1 - 0.85[/tex]

[tex]P = 0.15[/tex]

Convert to percentage

[tex]P = 0.15*100\%[/tex]

[tex]P = 15\%[/tex]

Solving (c): TVs sold in 1999

First, we need to determine the value of t for 1999

In 1997, t= 0

In 1998, t= 1

In 1999, t= 2

So, we substitute 2 for t in: [tex]n = 26.8(0.85)^t[/tex]

[tex]n = 26.8(0.85)^2[/tex]

[tex]n = 26.8*0.7225[/tex]

[tex]n = 19.363[/tex]

Geometric mean of 14 and 12

Answers

Answer:

14 and 12

Step-by-step explanation:

which graph could represent a function ? ?

Answers

Answer:

The third Graph

Step-by-step explanation:

Using the vertical line test to determine whether or not a graph represents a function. If a vertical line is moved across the graph and, at any time, touches the graph at only one point, then the graph is a function. If the vertical line touches the graph at more than one point, then the graph is not a function.

Answer:

The third Graph

Step-by-step explanation:

Pls help me!!! And thank yiuuu!!!

Answers

Answer:

[tex]\huge\boxed{x = 8}[/tex]

Step-by-step explanation:

In order to solve for x, we need to note a few angle relationships here.

A) Equations can be used to represent angle lengths as long as there is something else to reference it (such as a supplementary/congruent/etc. angle) B) When two parallel lines are cut by a transversal, the angle measures formed by the transversal will be the same.

Using these rules, we can start to figure out that the angle [tex]7x+3[/tex] is going to be congruent to the angle [tex]3x+35[/tex]. Since the angle measures will be the same, that means the value of x will also be the same. Therefore, we can set the two equations equal to each other and solve for x.

[tex]7x + 3 = 3x+35[/tex] [tex]4x + 3 = 35[/tex] [tex]4x = 32[/tex] [tex]x = 8[/tex]

Hope this helped!

can someone help please

Answers

Answer is (-1, 7)

Hope it will help

Need this very badly, there is,no c or d just those 2.​

Answers

Answer:

B.

Step-by-step explanation:

A is describing volume I belive so the only answer that makes sense would be b since the surface area is when you combine all the areas togther.

Hope this helps :)

Plz help me with this

Answers

9514 1404 393

Answer:

growth2.3%

Step-by-step explanation:

The number with the exponent is 1+0.023/4 = 1.00575. This number is greater than 1, so represents growth.

When x increases by 1, the multiplier of 800 increases by ...

  1.00575^4 ≈ 1.023199 = 1 + 2.3199%

Rounded to the nearest tenth percent, this is a 2.3% growth rate.

_____

Additional comment

The formula corresponds to a financial formula in which a 2.3% annual interest rate is compounded 4 times per year. The effective annual interest rate is almost 2.32% per year. The difference is there, but is too small to see when the interest rate is rounded to a tenth percent.

During the summer, the height of the water in a pond decreases by 2 inches per day due to evaporation. What is the change in the height of the water after 12 days?

Answers

Answer:

24 inches

Step-by-step explanation:

2 x 12 = 24

Expand and combine like terms. (4d^2-2d^7)^2

Answers

The expanded form will be 16d⁴ + 16d¹⁴ - 8d⁹ - 8d⁸.

What is an expression?

To show the value of each digit, we divide a number into its place values and then expand it. A 943 expanded form is provided as an example. Blocks of hundreds in nine 3 blocks of ones and 4 blocks of tens. nine hundos 4 tens plus 3 ones expanded Form: 900 + 40 + 3.

An expression is a combination of numbers, variables, and operators that represents a value or a mathematical relationship.

In the given example (4d^2-2d^7)^2 is an algebraic expression which can be simplified by expanding it using the rule of square of binomial. The expanded form will be  16d⁴ + 16d¹⁴ - 8d⁹ - 8d⁸

Hence, the expanded form will be  16d⁴ + 16d¹⁴ - 8d⁹ - 8d⁸.

To learn more about the expressions, visit:

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hii please please help i’ll give brainliest if you give a correct answer tyyyyy

Answers

PLEASE MARK BRAINLIEST!

Answer:

40%

Step-by-step explanation:

6 apples out of 15 fruits = [tex]\frac{6}{15}[/tex]

[tex]\frac{6}{15}[/tex] is equivalent to [tex]\frac{2}{5}[/tex]

[tex]\frac{2}{5}[/tex] is equivalent to 40%

So your answer is 40%

I hope this helps!

- sincerelynini

Geraldine is asked to explain the limits on the range of an exponential equation using the function f(x) = 2x. She makes these two statements:

1. As x increases infinitely, the y-values are continually doubled for each single increase in x.
2. As x decreases infinitely, the y-values are continually halved for each single decrease in x.

She concludes that there are no limits within the set of real numbers on the range of this exponential function. Which best explains the accuracy of Geraldine’s statements and her conclusion?

Statement 1 is incorrect because the y-values are increased by 2, not doubled.
Statement 2 is incorrect because the y-values are doubled, not halved.
The conclusion is incorrect because the range is limited to the set of integers.
The conclusion is incorrect because the range is limited to the set of positive real numbers.

Answers

Answer:

The conclusion is incorrect because the range is limited to the set of positive real numbers.

Step-by-step explanation:

The conclusion is incorrect because the range of the function f(x) = 2x includes all positive real numbers.

What is a function?

A relation is a function if it has only One y-value for each x-value.

Statement 1 is actually correct, because as x increases by 1, the value of f(x) = 2x is multiplied by 2.

Therefore, the y-values are indeed doubled for each single increase in x.

Statement 2, however, is incorrect, because as x decreases by 1, the value of f(x) is divided by 2, not halved.

Therefore, the accuracy of Geraldine's statements is mixed.

The range of the function f(x) = 2x includes all positive real numbers, not just integers or positive integers.

Therefore, the conclusion is incorrect because the range of the function f(x) = 2x includes all positive real numbers.

To learn more on Functions click:

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i need help this is really important for my grade

Answers

Answer is -5/8 as the slope

Zoey walked from school to the grocery store, and then to her house. The diagram shows the top view of the three locations and some of the distances between them.

Answers

Answer:

56

Step-by-step explanation:  

Please please help please please ASAP please

Answers

The Answer Is:x=3.5. You have to decide 32 by 9 and the first two numbers you get are your answer.

can Someone help me with this math problem

Answers

Sorry just need points

HELP ME PLEASE
Use the table to answer the question.
Avocados Price
$1.15
$2.30
$5.75
$11.50
1
2
5
10
How much will 3 avocados cost?
O $1.15
O $3.45
O $4.45
O $4.60

Answers

one Avocado costs 1.15 you need 3

1.15×3=3.45

$3.45 because just multiply 3 and 1.15 and you’ll get $3.45

What is the solution to this equation?
x+7-8
O A. x= -1
OB. x=-15
O c.x=1
O D. x=15

Answers

Answer:

A: x=-1

Step-by-step explanation:

but the answer would be B

1 and 2 step equations algebra
What is the Variable
10= 2k + 16

Answers

your answer has to be k=3

I NEED HELP PLZ ANSWER THIS

Answers

Answer:

A

Step-by-step explanation:

(✓x)^5

(x^1/2)^5

x^5/2

A its a i think pls correc tme

Determine whether the relation is a function. Explain. {(3, 9), (4, 8), (–7, 4), (0, 4), (2, 4), (3, 5), (–3, 8)} a. Yes, each x-value is paired with exactly one y-value. b. No, there is a y-value paired with more than one x-value. c. No, there are no negative y-values. d. No, there is an x-value paired with more than one y-value.

Answers

the relation would not be a function since there are two x values that got to one y value.

-4(-6 + 2) =

A)-16
B)-32
C)-8
D)16

Answers

Step-by-step explanation:

[tex] - 4( - 6 + 2) [/tex]

[tex] - 4( - 4) = + 16[/tex]

Answer: A)-16

Step-by-step explanation:

Which expression would you use to find the number of outcomes for flipping 4 coins?

2 · 2 · 2 · 2
2(4)
2 + 2 + 2 + 2
2 + 4

Answers

the answer would be 2(4)

Answer:

2 x 2 x 2 x 2

Step-by-step explanation: 16 outcomes

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