1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
bezimeni [28]
2 years ago
13

What is the value of 2x - 3y, if x = 2 and y=-1?​

Mathematics
2 answers:
Naya [18.7K]2 years ago
4 0

Answer:

7

Step-by-step explanation:

Substitute 2 for x and -2 for y

2(2) - 3(-1)

4 - -3 = 7

Inessa [10]2 years ago
3 0

Answer:

7

Step-by-step explanation:

I) Construct an expression to find the answer:

2(2) - 3(-1)

II) Simplify/Solve:

2(2) - 3(-1)

= 4 - (-3)

= 7

You might be interested in
Please help Factor completely. Show your work (as much work as possible, including a ​list of factors if
defon

Answer:

1. x =0; x = -7

2. x = -3; x = 10

3. x = -5; x = -4

Step-by-step explanation:

(1). 6x² + 42x = 0

6x (x + 7) = 0

6x = 0. OR. x + 7 = 0

x = 0/6. x = 0 - 7

x = 0. x = -7

x = 0

x = -7

(2). x² - 7x - 30 = 0

The factors here are (3, -10)

x² - 10x + 3x - 30 = 0

x ( x - 10) + 3 ( x - 10) = 0

(x + 3) ( x - 10) = 0

x + 3 = 0 OR. x - 10 = 0

x = 0-3. x = 0 + 10

x = -3. x = 10

x = -3

x = 10

(3). x² + 9x + 20 = 0

The factors are ( 4, 5)

x² + 4x + 5x + 20 = 0

x ( x + 4) + 5 ( x + 4) = 0

(x + 5) (x + 4) = 0

x + 5 = 0 . OR. x + 4 = 0

x = 0-5. x = 0 - 4

x = -5. x = -4

x = -5

x = -4

6 0
3 years ago
Read 2 more answers
ILL MARK BRAINIEST IF YOU DO ONLY NUMBER 8 DO NOT DO 7!!!!
krok68 [10]

Answer:

so maybe try photo math.

4 0
2 years ago
The principal P is borrowed at a simple interest rater for a period of time t. Find the loan's future value A, or the total amou
Andrews [41]
Simple interest formula:
I=PRT

I(interest money created in dollars)
P(initial amount of money)
R(interest rate as a decimal)
T(time in years)

I=7000(.07)(6)
I=$2,940

Therefore, the future value of A is $2,940
8 0
3 years ago
Determine the salary per pay period. Law Clerk: $48,950; weekly. Round to the nearest Hundredth.
Viktor [21]
49,000 is the nearest round to the hundredth to 48,950
4 0
2 years ago
Write an inequality that can be solved by subtraction 7 from wach side.
BaLLatris [955]
X + 7 < 2x +7
therefore
<span>x < 2x
</span>x > 0

another:
25 + 7 > 10 + 7
therefore
25 > 10
7 0
3 years ago
Other questions:
  • Find each sum.Simplify if possible
    15·2 answers
  • Evaluate the expression. If necessary, round to the nearest hundredth. lne
    6·2 answers
  • Completing the square allows us to see the vertex of the quadratic equation's parabola. Explain why. 
    7·1 answer
  • What is the slope of the line shown below (- 1, 8) (2, - 4)
    11·1 answer
  • PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!<br><br> Simplify.
    15·1 answer
  • Eli wants to combine 0.5 gallon of a 10% acid solution with some 35% acid solution to make a 15% acid solution. How much of the
    10·2 answers
  • Find f(-2) for the function:<br><br> f(x)= 3x^2-1, x&lt;1<br> x+2, x&gt; 1
    13·1 answer
  • Whats the answer for, 9x - 7i &gt; 3 (3x - 7u)​
    9·1 answer
  • I need help with this problem Geometry
    11·1 answer
  • Simplify 15(10-4-2)<br> 14<br> 015/2<br> 52-4110<br> O 105-4110
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!