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
can someone plesae help solve this inequality 4+4>20
To get the answer for question 32, you need to collect like terms and simplify the expression.
Starting with the given expression:
18w + w + 10/17w
To collect like terms, combine the terms that have the same variable (w):
18w + w = 19w
Now the expression becomes:
19w + 10/17w
To add fractions, you need a common denominator. In this case, the common denominator is 17w:
(19w * 17w + 10) / 17w
Simplifying the numerator:
323w^2 + 10
The final simplified equivalent expression without parentheses is:
323w^2 + 10
For question 33, you need to solve the equation using the addition principle and simplify the answer.
Starting with the given equation:
x - 2/3 = 4/5
To isolate the variable x, add 2/3 to both sides of the equation:
x - 2/3 + 2/3 = 4/5 + 2/3
Simplifying the right side of the equation:
x = 4/5 + 2/3
To add fractions, you need a common denominator. In this case, the common denominator is 15:
(4/5 * 3/3 + 2/3 * 5/5) / 15
Simplifying the numerator:
(12/15 + 10/15) / 15
Combining the fractions:
22/15 / 15
Dividing fractions is the same as multiplying by the reciprocal of the second fraction:
22/15 * 1/15
Simplifying the multiplication:
22/225
So, the solution is:
x = 22/15
For question 34, you need to plug in the given value for x and evaluate the expression.
Starting with the given expression:
(-9x)^2
Substitute x = 7:
(-9*7)^2
Simplifying the expression inside the parentheses:
(-63)^2
Evaluating the exponent:
3969
So, the answer is:
3969
For question 35 and 36, you need to divide the fractions if possible.
35)
Starting with the given division:
140/-20
Dividing fractions is the same as multiplying by the reciprocal of the second fraction:
140 * -1/20
Simplifying the multiplication:
-7
So, the answer is:
-7
36)
Starting with the given division:
36/-4
Dividing fractions is the same as multiplying by the reciprocal of the second fraction:
36 * -1/4
Simplifying the multiplication:
-9
So, the answer is:
-9
For question 37, you need to solve the equation using the addition principle.
Starting with the given equation:
-9 + x = -7
To isolate the variable x, subtract -9 from both sides of the equation:
-9 - (-9) + x = -7 - (-9)
Simplifying the equation:
x = -7 + 9
Adding the numbers on the right side of the equation:
x = 2
So, the solution is:
x = 2
For question 38, you need to find the elevation of the new well in 1998.
Starting with the given elevation in 1993:
-3130 ft
To find the elevation of the new well in 1998, add the depth of 330 ft:
-3130 ft + 330 ft
Simplifying the addition:
-2800 ft
So, the elevation of the new well in 1998 is:
-2800 ft
For question 39, you need to subtract the fractions.
Starting with the given subtraction:
-2/3 - 1/3
Subtracting fractions requires a common denominator. In this case, the denominator is already the same:
(-2/3) - (1/3)
Subtracting the numerators:
-2 - 1 = -3
So, the answer is:
-3