Ask question

Ask question

All categories

3 years ago

12

there are 9000 four digit numbers. 4536 of the four digit numbers have no repeating digits. How many four digit numbers have at

least one repeating digit?

1 answer:

Shtirlitz [24]3 years ago

5 0

This is subtraction:

9,000-4,536=4,464

You might be interested in

Help me i dont understand

olga55 [171]

Answer:

4/8 +6/8 I just verfying the other person's. ok

Step-by-step explanation:

I did it on a calculator ;b

PLEASE MARK FallOutChild brainliest!!

5 0

3 years ago

Read 2 more answers

If (x) =7-3x, determine the value of x when f(x)=16.

melomori [17]

Answer:

f=16/7.3x

Step-by-step explanation:

Lets solve for f:

f(7.3)=16

Step 1:Divide both sides by 7.3x

7.3f/7.3x=16/17.3x

f=16/7.3x

3 0

3 years ago

I need answer on this graphing va substitution.Problem 7 I tried to solve it but not sure that’s correct

Bond [772]

Given the system of equations:

$\begin{gathered} 2x+9y=27 \\ x-3y=-24 \end{gathered}$

To solve it by substitution, follow the steps below.

Step 1: Solve one linear equation for x in terms of y.

Let's choose the second equation. To solve it for x, add 3y to each side of the equations.

$\begin{gathered} x-3y=-24 \\ x-3y+3y=-24+3y \\ x=-24+3y \end{gathered}$

Step 2: Substitute the expression found for x in the first equation.

$\begin{gathered} 2x+9y=27 \\ 2\cdot(-24+3y)+9y=27 \\ -48+6y+9y=27 \\ -48+15y=27 \end{gathered}$

Step 3: Isolate y in the equation found in step 2.

To do it, first, add 48 to both sides.

$\begin{gathered} -48+15y=27 \\ -48+15y+48=27+48 \\ 15y=75 \end{gathered}$

Then, divide both sides by 15.

$\begin{gathered} \frac{15y}{15}=\frac{75}{15} \\ y=5 \end{gathered}$

Step 4: Substitute y by 5 in the relation found in step 1 to find x.

$\begin{gathered} x=-24+3y \\ x=-24+3\cdot5 \\ x=-24+15 \\ x=-9 \end{gathered}$

Answer:

x = -9

y = 5

or (-9, 5)

Also, you can graph the lines by choosing two points from each equation, according to the picture below.

7 0

1 year ago

What is the best scenario for the most profit in purchasing office equipment?

Zolol [24]

Answer:

A, the first answer, the cash option

Step-by-step explanation:

APR = annual percentagte rate. Knowing this, we know that the full percent of interest is taken every 12 months. So, knowing this, we can figure this question out pretty easy by subtracting the revenue of each answer by the full payment of the loan and finding out which is the highest.

The first gives 15k profits (45-30)

The second has a loan of 25,000 over 18 months, which is 1.5x 15 = %22.5 interest you have to pay on this loan, which is 5625 dollars (.225 * 25000), added to the loan of 25,000 is 30,625 and a rev of 40k, which profits ~10k so not the right ans

The third has 2.5 x the interest rate of 12 so 30% of your loan of 28,000 which brings you to 8400 in interest and 36400 total, subtracting from 45000 is ~9k profit

The fourth is 20% of 32,000 which is 6,400, added is 38,400 subtracted from 50k rev is 11k in profit

Looking at these, we can conclude the highest profit is the cash option.

Also, a little tip, APR only holds interest on the principal loan, while APY is compound interest

7 0

3 years ago

How to multiply mixed fractions

morpeh [17]

Answer:

Ez

Step-by-step explanation:

Change each number to an improper fraction.

Simplify if possible.

Multiply the numerators and then the denominators.

Put answer in lowest terms.

Check to be sure the answer makes sense.

8 0

3 years ago