45 mph to 25mph as a fraction in lowest terms.

Answers

Answer 1

Answer: If you have a scientific calculator, enter in 45/25. You will get a decimal, but on some, if not most, calculators, it can convert it to fractions for you.
You will get: 9/5 mph.
Mixed number: 1 and 4/5

Answer 2

Answer:

You have to divide 45/25 or used the calculator but if you want the answer to be as a fraction in lowest terms you have to simply 45 and 25 by 5

45 /25 divide by 5 will be= 9/5 if you simplify it again will be 1 and 4/5.

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Victoria has $1.90 worth of nickels and dimes. She has 2 more nickels than dimes.Write a system of equations that could be used to determine the number of nickels
and the number of dimes that Victoria has. Define the variables that you use to write
the system.

Answers

Answer:

0.05n+0.10d=1.90

n=d+2

Step-by-step explanation:

One nickel is worth $0.05, so n nickels are worth 0.05n. One dime is worth $0.10, so dd dimes are worth 0.10d.The total 0.05n+0.10d equals $1.90:

0.05n+0.10d=1.90

Since there are 2 more nickels than dimes, there are more nickels, so if we add 2 to the number of dimes, we will get the number of nickels, meaning nn equals d+2.d+2.

n=d+2

Final answer:

From the problem, we create a system of equations that represent the value and quantity of nickels and dimes Victoria has. The system is: 0.05N + 0.10D = 1.90 and N = D + 2, where N represents nickels and D represents dimes.

Explanation:

The problem is about finding the number of nickels and dimes Victoria has. To do this, we will use a system of equations. We'll define N as the number of nickels and D as the number of dimes.

The first equation is based on the total value: since a nickel is worth $0.05 and a dime is worth $0.10, Victoria's coins add up to $1.90 - hence 0.05N + 0.10D = 1.90

The second equation is based on the quantity of coins: Victoria has 2 more nickels than dimes - hence N = D + 2.

Therefore, the system of equations is:

0.05N + 0.10D = 1.90
N = D + 2

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75,000 grams= _____kilograms

Answers

75,000 grams equals 75 kilogram so the answer is H.

All you have to do is divide 75,000/1,000=75 because a kilogram is 1,000 grams.

Thank You!

1000 gram ewuals 1 kilogram so 75000 grams equals 75 kilograms

Factor completely 2x3 + x2 - 18x – 9.

Answers

$2x^3+x^2-18x-9=x^2(2x+1)-9(2x+1)\n\n=(2x+1)(x^2-9)=(2x+1)(x^2-3^2)\n\n=(2x+1)(x-3)(x+3)$

The completelyfactoredform of 2x³ + x² - 18x - 9 is (2x + 1)(x - 3)(x + 3).

We have,

To factor completely the expression 2x³ + x² - 18x - 9, we can follow these steps:

- Step 1: Group the terms in pairs:

(2x³ + x²) + (-18x - 9)

- Step 2: Factor out the greatest commonfactor from each pair:

x²(2x + 1) - 9(2x + 1)

- Step 3: Observe that we have a common binomial factor of (2x + 1).

Factor it out:

(2x + 1)(x² - 9)

- Step 4: The binomial (x² - 9) is a difference of squares and can be further factored as:

(2x + 1)(x - 3)(x + 3)

Therefore,

The completelyfactoredform of 2x³ + x² - 18x - 9 is (2x + 1)(x - 3)(x + 3).

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What is the correct sums 7 hundredths + 7 tenths ，7 tenths + 70 hundredths
，1 tenth + 17 hundredths
，10 tenths + 4 hundredths
，11 hundredths + 8 tenths

，Options 177\100 91\100 140\100 77\100 27\100 104\100

Answers

$a) (7)/(100) + (7)/(10) = (7)/(100) + (7*10)/(10*10) = (7+70)/(100) = (77)/(100) \n \n b) (7)/(10) + (70)/(100) = (7*10)/(10*10)+ (70)/(100)= (70+70)/(100)= (140)/(100) \n \n c)(1)/(10) + (17)/(100) = (1*10)/(10*10) + (17)/(100)= (10+17)/(100) = (27)/(100) \n \n d) (1)/(1) + (4)/(00) =(1*100)/(1*100) + (4)/(100) = (100)/(100) + (4)/(100) = (104)/(100) \n \n$

$e) (11)/(100)+ (8)/(10) = (11)/(100)+(8*10)/(10*10) =(11+80)/(100) = (91)/(100)$

1. Is y = -x - 1 quadratic? Explain.

Answers

No because the formula for a quadratic equation is ax^2+bx+c=0
This is a linear equation however.
Hope this helps

The vertices of Triangle ABC are Upper A (-4, 4), Upper B (-2, 3) and Upper C (- 3, 2). If Triangle ABC is reflected across the line y= -2 to produce the image A'B'C', find the coordinates of the vertex B'.

Answers

Answer: B’ ( -2, -7)

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