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
Masteriza [31]
3 years ago
12

Part A : 5x+3 = 7x-1 Part B: 5x + 2(x+7) = 14x -7 Part C: 5(z+1) = 3(z+2) + 11

Mathematics
2 answers:
mars1129 [50]3 years ago
6 0

Answer:

Part A: x=2

Part B: x=3

Part C: z=1

Step-by-step explanation:

Part A:

like terms...

5x+3=7x-1

-5x -5x

solve...

3=2x-1

+1 +1

4=2x

/2 /2

2=x

Part B:

use distributive property first...

5x+2x+14=14x-7

like terms...

7x+14=14x-7

-7x -7x

Solve...

14=7x-7

+7 +7

21=7x

/7 /7

3=x

Part C:

use distributive property first...

5z+5=3z+17

like terms...

5z+5=3z+17

-3z -3z

solve...

2z+5=17

-5 -5

2z =2

/2 /2

z=1

PolarNik [594]3 years ago
5 0
1.) 2
2.) 3
3.) 6

mark me please !
You might be interested in
ruth had a ribbon that was 9 yards long. she cut the ribbon into pieces that were 1/6 yard long. how many pieces of ribbon does
Ainat [17]

Answer:

54

Step-by-step explanation:

6            x       9         =         54

she can      there are

make 6       9 yards

ribbons

out of

a yard

4 0
3 years ago
For the dinner special at a restaurant, the customer must choose an appetizer, a salad, an entree, a side dish, and a dessert. H
Ostrovityanka [42]

Answer:

The number of possible dinner specials are 4368.

Step-by-step explanation:

The number of dinner specials = 5

They include appetizer, a salad, an entree, a side dish, and a dessert.

Possible items to choose from = 16.

They are 1. Appetizer Chicken strips, 2. Shrimp cocktail, 3. Buffalo wings, 4. Potato skins, 5. Salad Garden, 6. Caesar Entree T-bone steak, 7. Pot roast, 8. Lamb Side dish Corn, 9. Rice, 10. French fries, 11. Baked potato, 12. Pinto beans, 13. Dessert Chocolate cake, 14. Brownies, 15. Ice cream, 16. Apple pie

This is a combination problem requiring a combination solution with the following formula and steps:

C (n, r) =? C (n, r) = ?

n choose r

n (objects) =  16

r (sample) =  5

C (n, r) =? C (n, r) = ?

C (n, r) =C (14,5) C (n, r) =C (16,5)

=16! (5! (16−5)!) =16! (5! (16−5)!)

= 4368

3 0
3 years ago
What is the value of X?
Luda [366]
They making me type 20 things but ima day its 72 cuh
6 0
3 years ago
HELP! IS THIS PROPORTIONAL
MAXImum [283]

Answer:

Yes

Step-by-step explanation:

3 0
3 years ago
What is n-9 divided by 10=-2
DerKrebs [107]

The value of n is 11.

<u>Step-by-step explanation</u>:

The given expression is (n-9) ÷ 10 = -2

<u>To find the value of n</u> :

  • From the expression, it is determined that (n-9) is the numerator and 10 is the denominator.
  • Cross multiply the denominator in the left side of the expression to the another side.

The expression becomes (n-9) = (10\times -2).

⇒ n-9 = -20

Keep the n term on one side and the constants on other side.

⇒ n = -20+9

⇒ n = -11

Therefore, the value of n is 11.

3 0
3 years ago
Other questions:
  • Simplify 12/ |-4| x3 + |5|
    14·1 answer
  • Which is correct regarding the angles of the triangle?
    13·1 answer
  • For which value of c is the line y=3x+c a tangent to the parabola with equation y=x^2-5x+7
    5·1 answer
  • Max has a monthly salary of $1,100 and also earns 7.5% commission on his sales. If Max had $43,000 in sales last month, what wer
    7·2 answers
  • I need help again...sorry and thanks
    12·1 answer
  • 3(x - 1) - 8 = 4(1+x) + 5​
    5·2 answers
  • Yesterday the temperature at noon was 16.8°F. By midnight, it had dropped by
    12·1 answer
  • A rectangle is 5 feet wide and 10 feet long what is the perimeter
    6·1 answer
  • Can somebody solve this?
    14·2 answers
  • HELP DUE IN 10 MINUTES
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!