A number is subtracted from 9. The result is multiplied by 10 and the answer is 40. Construct an equation from the information given then solve it.

x = 5

Step-by-step explanation:

(9 - x) × 10 = 40

90 - 10x = 40

90 - 40 = 10x

50/10 = 10x/10

x = 5

Step-by-step explanation:

A number is subtracted from 9. We can call this number "x."

9-x is our first part. Now the problem is saying that the result is multiplied by 10.

10(9-x)

Now the problem is saying that this expressions is equal to 40. Now we have constructed the equation 10(9-x) = 40. Now let's solve!

10(9-x) = 40
divide each side by 10.
9-x=4
subtract 9 from both sides
-x=-5
multiply each side by -1
x=5

The number is 5

no

step-by-step explanation:

2-7=-5

7-2=5

when you combing like terms for ech expression, 5 and -5. these numbers are not equal to each other.

answer: the value should be used for i in the formula of calculation the monthly payment , the interest rate per period is 0.85.

step-by-step explanation:

the given rate of interest i= 85%

in calculating the monthly payment for a loan with an interest rate compounded monthly, the value of the interest rate per period we use in the formula must be in decimal form.

to convert it in decimal, we divide it by 100, we get

hence, the value should be used for i in the formula of calculation the monthly payment , the interest rate per period is 0.85.