30 pointssssssssssssssssssssssssssssssssssssss

I believe the answer is $8.76!

ok so first we would do the function d(x) = 3(8)+2

which when solved turns out to be 26

we would then do the function h(x) = 2(26) +7

which when solved turns out to be 59

so he would need 59 dollars for the donuts

Answer:840,400

Step-by-step explanation:840,449

840,400

The pic is kinda upside down lol

A: 50x+0.60(200)=1620

B: It's kinda up to you to write what you've learned about the equality property but I'll give you the steps.

50x+0.60(200)=1620

50x+120= 1620

50x=1620-120

50x=1500

x=1500/50

x=30

C= Donna spent 30 days on her trip.

Check:

50(30)+0.60(200)=1620

50(30)+0.60(200)=1620

1500+120=1620

1620=1620

The answer to your question is,

You can buy 5 cans of pineapple chunks with $10. Since each can is $2, you need to add $2 for each can until you get $10. :3

-Mabel <3

Final answer:

Amelia swam 28 laps, which is four times the 7 laps that Wesley swam.

Explanation:

In solving the question about the number of laps Amelia swam, a straightforward multiplication approach is employed. Given that Amelia swam four times as many laps as Wesley, and Wesley's lap count is specified as 7, the calculation involves multiplying Wesley's laps by 4. In mathematical terms, Amelia's number of laps is determined as Wesley's laps multiplied by 4, resulting in 7 × 4 = 28 laps.

This multiplication process provides a clear and concise method to ascertain Amelia's lap count based on the given relationship, demonstrating a fundamental application of arithmetic principles in solving real-world problems involving numerical relationships and operations.

Answer:  Third option is correct.

Step-by-step explanation:

Since we have given that

Selling price of home = $250,000

Rate of commission on each sale she get = 3%

Rate of commission pays for expenses = 25%

So, Firstly amount she get on home sale would be

[tex]\dfrac{3}{100}\times 250,000\\\\=0.03\times 250,000\\\\=\$7,500[/tex]

Amount after paying for expenses would be

[tex]7500\times \dfrac{100-25}{100}\\\\=7500\times \dfrac{75}{100}\\\\=7500\times 0.75\\\\=5,625[/tex]

Hence, Multiply $250,000 by 0.03, and then multiply again by 0.75 is correct.

Therefore, Third option is correct.

Answer:

C

Step-by-step explanation:

To find the y-intercept you first need to set everything equal to y and that will put everything in the y=mx+b line equation. Where m is the slope and b is the y intercept

x+3y = 14           subtract x over

3y = -x+14         divide by 3

y = -1/3x +14

So 14 is the y-intercept of the equation

1 : Grouping Symbol, 2 : Operator, 3 : Order of Operations, 4 : Exponent, 5 : Variable, 6 : Term, 7 : Coefficient, 8 : Constant, 9 : Numerical Expression, 10 : Variable Expression, 11 : Equation, 12 : Inequality, 13 : Evaluate, 14 : Open Sentence

A number system is defined as the representation of numbers by using digits or other symbols in a consistent manner

By given data

1 : Devices, such as parentheses, brackets, and fraction bars, used to set apart an expression that should be simplified before other operations are performed: Grouping Symbol

2 : An expression that consists of numbers, operations, and sometimes grouping symbol: Operator

3 : The order in which operations must be computed when more than one operation is involve: Order of Operations

4 : A number representing how many times the base number should be multiplied by itself :Exponent

5 : A Symbol that represents a value that can change: Variable

6 : A single number or variable, or numbers and variables multiplied together: Term

7 : The numerical factor in a term. A number being multiplied by a variable: Coefficient

8 : A number on its own, it has a fixed value: Constant

9 : A combination of variables, numbers, and operations: Numerical Expression

10 : You replace, or substitute, all the variables with numbers and then simplify: Variable Expression

11 : A statement that the values of two math expressions are equal (indicated by the sign : Equation

12 : The relation between two expressions that are not equal, employing a sign such as ≠ “not equal to,” > “greater than,” or < “less than.”: Inequality

13 : The symbol of a math operation. plus, minus, times, divided by, equals: Evaluate

14 : An equation or inequality containing one or more variable: Open Sentence

Hence,

1 : Grouping Symbol, 2 : Operator, 3 : Order of Operations, 4 : Exponent, 5 : Variable, 6 : Term, 7 : Coefficient, 8 : Constant, 9 : Numerical Expression, 10 : Variable Expression, 11 : Equation, 12 : Inequality, 13 : Evaluate, 14 : Open Sentence

To learn more on number system click:

https://brainly.com/question/22046046

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Answer: Option C. Married and grade 2 (92.6%) is higher than Single and grade 2 (5.2%)

Solution:

Conditional relative frequency single employees in grade 2:

[(Single employees in job grade 2)/(Total employees in job grade 2)]*100%=

(222/4,239)*100%=0.052370842*100%=5.2370842% approximately 5.2%

Conditional relative frequency married employees in grade 2:

[(Married employees in job grade 2)/(Total employees in job grade 2)]*100%=

(3,927/4,239)*100%=0.926397735*100%=92.6397735% approximately 92.6%

92.6%>5.2%:

Married and grade 2 (92.6%) is higher than Single and grade 2 (5.2%)

Answer:

c

Step-by-step explanation:

Given

43 - 3d= d + 9

Solution

Add 3d to both sides of the equal sign

43 = d + 3d + 9

43 = 4d + 9             Subtract 9 from both sides

43 - 9 = 4d              Collect like terms on the left

34 = 4d                    Divide by 4 on both sides.

34/4 = 4d/4  

8 2/4 = d

d = 8 2/4 = 8 1/2 = 8.5

Check

LHS

43 - 3 * 8.5

43 - 25.5

17.5

RHS

d + 9

8.5 + 9

17.5

and the problem checks.

C is the answer

[tex]43-3d=d+9\qquad|\text{subtract 43 from both sides}\\\\-3d=d-34\qquad|\text{subtract d from both sides}\\\\-4d=-34\qquad|\text{divide both sides by (-4)}\\\\d=\dfrac{-34}{-4}\\\\d=\dfrac{34:2}{4:4}\\\\d=\dfrac{17}{2}\\\\\boxed{d=8\dfrac{1}{2}}\to\boxed{c.}[/tex]

he could save $645 a year so he could save up

first one: 1200/1.5 = 800, second one: 20,000/10= 2000, third one: 400/20 = 20, fourth one: 266.6, fifth one: 33.3, sixth one: 1000. You're welcome!!

A vegetable-oil recovery plant has already recycled 1,400 litters out of 2,500 liters of used oil.

Initially plant has 2,500 liters of used oil.

plant has already recycled 1,400 liters

so liters of oil left = 2500 - 1400 = 1,100

So 1,100 liters of oil left

plants can recycle 24 liters of used oil per hour

So for 1,100 liters we divide by 24 to find the number of hours

[tex]\frac{1100}{24}= 45.83[/tex]

Its approximately 46 hours

Approximately 46 hours it will take to recycle 1,100 liters.

Answer:    

The correct option will be:  d. 7950

Step-by-step explanation:

The police officer paid 10% of her income between $0 and $8350,  15% of her income between $8350 and $33,950  and 25% of her income between $33,950 and $47,050 in federal income tax.

So,   the amount of  tax at  10% rate  [tex]=(\$8350-\$0)*0.10=\$8350*0.10 = \$835[/tex],

the amount of tax at 15% rate [tex]=(\$33950-\$8350)*0.15 = \$25600*0.15=\$3840[/tex]

and the amount of tax at 25% rate [tex]= (\$47050-\$33950)*0.25= \$13100*0.25= \$3275[/tex]

Thus, the total amount of federal income tax will be: [tex](\$835+\$3840+\$3275)= \$7950[/tex]

Answer:

The correct answer is $7950

Step-by-step explanation:

(a) - 5

since y varies inversely as x then  k = yx ( k is the constant of variation )

using y = 5 when x = - 1, then k = 5 × - 1 = - 5

Answer:

36

Step-by-step explanation:

Given that Kelsay opened a bag of marbles.

The bag included 4 colours of marbles of equal numbers.

The four colours are red, yellow, green and blue.

To find the no of marbles of each colour in the bag:

Total number of marbles = 144

Total colours = 4

Hence divide total number by no of colours to get the answre

No of each colour marbles = 144/4 = 36

Answer:

The answer is A  1/5x^2

Step-by-step explanation:

If a negative exponent is in the numerator, move the expression to the denominator and make the exponent positive

Answer:

The answer is A  1/5x^2

Step-by-step explanation:

Answer:

It is given that image of any point (x,y) is (-x,y).

It is the case of reflection of a point through Y - axis.

So , Image of point (x,y) is (-x,y).

it's pre-image will be Point A whose coordinate is (x,y).

Answer:  Preimage of A' is A (x,y).

Step-by-step explanation:

Suppose we have given a point A' (-x,y) and let [tex]r_y[/tex] be the rotation transformation with center of rotation at origin(0,0) such that

[tex]r_y (x,y) =(-x,y) \\[/tex]  

Now in rotation transformation of any point about y axis i.e.( [tex]r_y[/tex]) it produces the reflected image by changing the polarity of x abscissa only and not of y. Therefore, by applying rotation transformation about y axis on image A'(-x,y) gives the pre-image of (-x,y) = (x,y) [which is the reflection of A'].

For example :- let P (1,2) be any point then after rotation transformation about y axis it will become P'(-1,2).

The Pythagorean Theorem is a² + b² = c².  Since the hypotenuse is 10 ft, c=10. The other leg is 8 ft, so b=8. Plug 10 into c, and 8 into b.

a² + 8² = 10²

Square 8 and 10.

= a² + 64 = 100

Subtract 64 from both sides.

= a² = 36

Find the square root of 36.

a = 6

[tex]f(x) \rightarrow -\infty \ as \ x \rightarrow \infty \ and \ f(x) \rightarrow 0 \ as \ x \rightarrow -\infty[/tex]

This is true because of the graph. As you can see, if x increases without bound, then f(x) take values from the straight line but those values become more and more negative. On the other hand, if x gets more and more negative, then f(x) approaches zero.

Answer:

Step-by-step explanation:

does anyone have the answers to the lesson 10; graph behavior test precal A unit 3 test?

ANSWER

When [tex]f(x)=x^2-10x+9[/tex] is written in the form [tex]f(x)=a(x-h)^2+k[/tex], it looks like [tex]f(x)=(x-5)^2-16[/tex]

EXPLANATION

To write  [tex]f(x)=x^2-10x+9[/tex] in the form [tex]f(x)=a(x-h)^2+k[/tex], we have to complete the squares.

We add and subtract half the coefficient of [tex]x[/tex] square.

[tex]f(x)=x^2-10x+(-5)^2-(-5)^2+9[/tex]

The first three terms of the function is now a perfect square.

[tex]f(x)=(x-5)^2-25+9[/tex]

We now simplify rto obtain,

[tex]\Rightarrow f(x)=(x-5)^2-16[/tex]