1) translate to an algebraic expression: one less than a product of two numbers

A: xy-1

2) 12/25 = ?
A: ? = .48

3) Find -x when x= -25/41 (this is a fraction)
A: -x = 41/25

4) Use a commutative law to find an equivalent expression. An equivalent expression of zx is ?
A: xz

5) multiply: -0.4(-28)=?
A: 11.2

6) solve using the muliplication principle.
12=6x
x=?
A: x=2

7) use either < or > to write a true sentence.
-5.61 < 14.33
A: <

8) solve for the indicated letter
z=10+y, for y
A: y = z-10

9) solve using the principles together
96 = 12(3y + 2)
A: y = 2

10) graph the number on the number line.
-11/4 (fraction)
I placed it between -3 and -2. closer to -3 because when changing it to a decimal it was 2.75

11) you owe $416.00. $294.09 of debt was canceled. How much to you owe?
A: $122.01

12) 9% of 39 = ?
A: 3.51

13) subract: -9-(-6)=?
A: -3

14) add fractions: -7/10 + 3/5 = ?
A: -1/10

15) multiply: (38)(7) = ?
A: 266

16) 2[4-5(1-8)]= ?
A: 98

17) translate to algebraic expression.
43 multiplied by t
A: 43t

18) simplify fraction: 42xy/54x = ?
A: 7y/9

19) solve: 8x-20=4x
A: x = 5

20) translate to algebraic expression:
35 more than q
A: q + 35

21) divide fractions, if possible:
-5/19 divided by [-3/19] =
A: 5/3

22) add: -9+(-5) = ?
A: -14

23) a student's average points when 536 points are earned on 8 tests.
A: 67 points

24) solve fraction using multiplication principle: x/6 = -6
x = ?
A: x = -36

25) determine whether 5 is a solution of the equation 7x+5=40
A: yes

26) evaluate fraction p/g for p = 24 and g = 4
Q: p/g = ? (simplify answer)
A: p/g = 6

27) [40 divide (-8) divide [-1/9] = ?
A: 45

28) find equivalent expression without parentheses: -(c+1) = ?
A: -c-1

29) solve: 3x-6=3
x = ?
A: x = 3

30) describe the situation from the viewpoint of each person. during a year, a person saves 1500 dollars, and another person spends 600 dollars.
Q: which real number corresponds to 'saves 1500 dollars'?
A: 1500
Q: which real number corresponds to 'spends 600 dollars'?
A: -600

31) type in factored form 5x+85 = ?
A: -17

32) collect like terms. simplify answer. type an improper fraction:
18w + w + fraction10/17w = ?
A: fraction 333/17w to the third ?
I need help with this one

33) i need help with this one (fractions) also
solve using addition principle and simplify answer:
x
33) x - 2/3fraction = 4/5fraction
A: x = 22/15 (fraction)?

34) Q: evaluate (-9x)to the second power when x=7.
A: 3969

Q: evaluate -9x to the second power when x=7
A: -441

35) divide fraction, if possible. type N if answer is undefined.
140/-20 = ?
A: -7

36) divide fraction, if possible. type N if answer is undefined.
36/-4 = ?
A: -9

37) solve using addition principle:
-9+x=-7
solution is: ?
A: x = 2

38) in 1993, the elevation of an offshore well was -3130 ft. in 1998, a new well was 330 ft deeper. what was the elevation of the new well in 1998?
A: -3460 ft

39) subtract fraction: -2/3 minus 1/3 = ?
A: -1

First of all, do not put so many questions all into one posting, please.

Your answers are correct, except the following:

11) I got 121.91
16) should be 78

31)
18w + w + (10/7)w ??
= (306w+17w+10w)/17
= (333/17)w

33) is it (x-2)/3 = 4/5 ??, if so then
5x - 10 = 12 ( I multiplied both sides by 15
5x = 22
x = 22/5

thank you but I still do not get 33.

the question is
x minus the fraction 2/3 = the fraction 4/5. to get the answer i would add the fraction 2/3 to the fraction 4/5 which gets me x = 22/15, right?

yes, if that is how the question was written.

you had posted:
x - 2/3fraction = 4/5fraction

which I had interpreted as
(x-2)/3 = 4/5

the answer I provided reflected that version.

Your original question with the word "fraction" inserted was quite confusing.

During a year, a person saves 1500 dollars? What is the corresponding number for this sentence?

simplify 19.(-30)-57

-2x>1/9

using a multipliation principal -x/11=1/16

3x+x=4x+28-2x

Convert to a fraction.

5 superscript negative 3 baseline

To get the answer to question 32, we need to collect like terms and simplify the expression.

The given expression is 18w + w + fraction10/17w.

We can combine the like terms by adding the coefficients of the w terms: 18w + w = 19w.

The expression becomes 19w + fraction10/17w.

To add these fractions, we need to find a common denominator. In this case, the common denominator is 17w. So, we rewrite the expression with the common denominator as: fraction(19w * 17w)/(17w) + fraction(10)/(17w).

Simplifying the numerator in the first fraction, we have: 323w^2/17w + fraction10/(17w).

To add these fractions, we need to have the same denominator. So, we multiply the second fraction by 17w/17w to get: fraction10 * 17w/(17w * 17w).

This gives us: 323w^2/17w + fraction(170w)/(289w^2).

To add these fractions, we need to have the same denominator. So, we multiply the first fraction by 17w/17w to get: fraction(323w^2 * 17w)/(17w * 17w) + fraction(170w)/(289w^2).

Simplifying the numerator in the first fraction, we have: fraction(5491w^3)/(289w^2) + fraction(170w)/(289w^2).

Combining the fractions, we get: fraction(5491w^3 + 170w)/(289w^2).

So, the equivalent expression without parentheses is: fraction(5491w^3 + 170w)/(289w^2).

For question 33, we use the addition principle to solve the equation and simplify the answer.

The given equation is: x - 2/3 = 4/5.

To solve for x, we want to isolate the variable by adding 2/3 to both sides of the equation.

x - 2/3 + 2/3 = 4/5 + 2/3.

Simplifying the left side, we have: x = 4/5 + 2/3.

To add these fractions, we need to find a common denominator. In this case, the common denominator is 15. So, we rewrite the expression with the common denominator as: fraction(4/5 * 3/3)/(15) + fraction(2/3 * 5/5)/(15).

Simplifying the numerator in the first fraction, we have: fraction(12/15)/(15) + fraction(10/15)/(15).

Adding the fractions, we get: fraction(12/15 + 10/15)/(15).

Simplifying the numerator, we have: fraction(22/15)/(15).

So, the solution to the equation is: x = 22/15.

For question 34, we are asked to evaluate the expression (-9x)^2 when x = 7.

To do this, we substitute the value of x into the expression and simplify.

The expression (-9x)^2 can be rewritten as (-9*7)^2.

Simplifying the expression within the parentheses, we have (-63)^2.

To square a negative number, we square the positive value and then negate it. So, (-63)^2 = (63)^2 = 3969.

Therefore, when x = 7, (-9x)^2 = 3969.

For question 35, we are asked to divide the fraction 140/-20.

To divide fractions, we multiply the numerator of the first fraction by the reciprocal of the second fraction.

The reciprocal of -20 is -1/20.

So, we have: 140/-20 = 140 * (-1/20).

Multiplying the numerators and denominators, we get: -140/20.

Simplifying the fraction, we have: -7.

Therefore, 140/-20 = -7.

For question 36, we are asked to divide the fraction 36/-4.

To divide fractions, we multiply the numerator of the first fraction by the reciprocal of the second fraction.

The reciprocal of -4 is -1/4.

So, we have: 36/-4 = 36 * (-1/4).

Multiplying the numerators and denominators, we get: -36/4.

Simplifying the fraction, we have: -9.

Therefore, 36/-4 = -9.

For question 37, we are asked to solve the equation -9 + x = -7 using the addition principle.

To solve for x, we want to isolate the variable by subtracting -9 from both sides of the equation.

-9 + x - (-9) = -7 - (-9).

Simplifying the left side, we have: x = -7 + 9.

Adding the numbers, we get: x = 2.

Therefore, the solution to the equation is: x = 2.

For question 38, we are asked to find the elevation of a new well in 1998 when it is 330 ft deeper than the elevation of an offshore well in 1993.

The elevation of the offshore well in 1993 is given as -3130 ft.

To find the elevation of the new well in 1998, we add the depth of 330 ft to the elevation of the offshore well.

So, the elevation of the new well in 1998 is: -3130 + 330 = -3460 ft.

Therefore, the elevation of the new well in 1998 is -3460 ft.

For question 39, we are asked to subtract the fraction -2/3 from 1/3.

To subtract fractions, we find a common denominator and then subtract the numerators.

The common denominator for 1/3 and -2/3 is 3.

So, we have: 1/3 - 2/3 = (1 - 2)/3.

Simplifying the numerator, we have: -1/3.

Therefore, -2/3 - 1/3 = -1/3.