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Naddik [55]
3 years ago
15

What is the value of z in the equation 2z + 6 = –4? (5 points) 5 1 –1 –5

Mathematics
2 answers:
PtichkaEL [24]3 years ago
6 0
The answer is -5. Hope this helps.
marysya [2.9K]3 years ago
6 0
Plug in the options
not 5( 2 x 5) + 6= 16
not 1 ( 2 x 1) + 6 = 8
not -1 (2 x -1) + 6= 4
so its 5 ( 2 x -5) + 6= -4
- 
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Simplify -2.8f+0.9f-12-4
bogdanovich [222]

Answer:

  • -1.9f - 16

Step-by-step explanation:

  • -2.8f + 0.9f - 12 - 4 =
  • (-2.8 + 0.9)f - (12 + 4) =
  • -1.9f - 16
3 0
2 years ago
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15. Lily deposited $570 into her account in 15 days. Write an equation to
Aleks [24]

Answer:

38

Step-by-step explanation:

To find the unit rate (How much money in one day), you have to divide the amount of money by the amount of days and 570÷15=38

8 0
3 years ago
What is the slope of the equation -4x-7y=-14
castortr0y [4]
The answer to your question is precisely 99
3 0
3 years ago
An arithmetic sequence is defined by the general term tn = -5 + (n - 1)78, where n ∈N and n ≥ 1. What is the recursive formula o
Gnoma [55]

Answer:

C

Step-by-step explanation:

In general for arithmetic sequences, recursive formulas are of the form

aₙ = aₙ₋₁ + d,

and the explicit formula (like tₙ in your problem), are of the form

aₙ = a₁ + (n - 1)d,

where d is the common difference. So converting between the two of these isn't so bad. In this case, your problem wants you to have an idea of what t₁ is (well, every answer says it's -5, so there you are) and what tₙ₊₁ is. Using the formulas above and your given tₙ = -5 + (n - 1)78, we can see that the common difference is 78, so no matter what we get ourselves into, the constant being added on at the end should be 78. That automatically throws out answer choice D.

But to narrow it down between the rest of them, you want to use the general form for the recursive formula and substitute (n + 1) for every instance of n. This will let you find tₙ₊₁ to match the requirements of your answer choices. So

tₙ₊₁ = t₍ₙ₊₁₎₋₁ + d ... Simplify the subscript

tₙ₊₁ = tₙ + d

Therefore, your formula for tₙ₊₁ = tₙ + 78, which is answer choice C.

6 0
3 years ago
Read 2 more answers
Mr. Miller owns two hotels and is ordering towels for the rooms. He ordered 27 hand towels and 48 bath towels for a bill of $540
Temka [501]

This question is based on the concept of solving a two linear equation.

Thus, the cost of one bath towel is $9 and one hand towel is $4.

Given:

Number of  ordered of hand towels is 27 and bath towels is 48 and for a bill of $540 for the first hotel.

Number of  ordered of hand towels is 50 and bath towels is 24 and for a bill of $416 for the other hotel.

We need tom determined the cost of one hand towel and one bath towel.

According to the question:

Let the  hand towels be h  and bath towels be b.

Therefore, equation of first hotel is

27h + 48b = 540........(1)

Equation of second hotel is

50h + 24b = 416.........(2)

Now, solving both equation for h and b.

Equation (2) multiplying by -2.

-100 h -48 b = - 832..................(3)

Now, solve equation (1) and (3)

27h + 48b = 540  and -100h - 48b = - 832

⇒ -73 h = - 292

⇒ h = -292 / -73

⇒ h = 4

Therefore, the cost of 1 hand towel is $4.

Now, putting the value of h = 4 in equation (1).

⇒ 27(4) + 48b = 540

⇒ 108 + 48b = 540

⇒ 48b = 540 - 108

⇒ 48b = 432

⇒ b = 432/48

⇒ b = 9

Therefore, the cost of 1 bath towel is $9.

Thus, the cost of one bath towel is $9 and one hand towel is $4.

For more details, prefer this link:

brainly.com/question/11897796

4 0
2 years ago
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