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Shkiper50 [21]
3 years ago
5

Given f(x)=x-10. what is f(-7)

Mathematics
1 answer:
Vlad [161]3 years ago
5 0
f( - 7) = ( - 7) - 10 \\ = -1 7
answer is -17
You might be interested in
- 2(x + 3) = 10<br> Please help
arsen [322]

-2x - 6 = 10

-2x = 16

-x = 8

x = -8

6 0
3 years ago
Farmer Donald is selling two parcels of land together. One of the parcels is one square mile and the other parcel is five acres.
Julli [10]

Answer:

The answer to your question is: c) $1354500

Step-by-step explanation:

Data:

Parcel1 = P1 = 1 mi2

Parcel2= P2= 5 acres

Price = $2100 / acre

Total price =

Need to convert 1 mi2 to acres

            1 acre ------------------------ 0.001563 mi2

           x         -------------------------  1 mi2

 x = 639.8 acres

Now  

              1 acre ------------------------- $2100

            639.8 acres -----------------     x

Parcel 1 cost  = $1343580

              1 acre ------------------------- $2100

               5 acres ---------------------   x

        x = 10500

Total cost = cost P1 + cost P2

Total cost = $1343580 + $10500 = $ 1354080   The closest is letter c

5 0
3 years ago
When exchanging US Dollars (USD) for Philippine Peso (PHP) the number of Philippine Pesos received is directly proportional to t
Nimfa-mama [501]

Answer:

(a)k=44.245

(b)39820.50 PHP

Step-by-step explanation:

<u>Part A</u>

Let the number of PHP =y

Let the number of USD =x

The number of Philippine Pesos(y) received is directly proportional to the number of US Dollars(x) to be exchanged.

The equation of proportion is: y=kx

If 550 USD can be converted into 24,334.75 PHP.

  • x=550
  • y=24,334.75

Substitution into y=kx  gives:

24,334.75=550k\\$Divide both sides by 550$\\k=24,334.75 \div 550\\k=44.245

The constant of proportionality k=44.245

<u>Part B</u>

The equation connecting y and x then becomes:

y=44.245x

If x=900 USD

Then:

y=44.245 X 900

y= 39820.50

Therefore, given that you have 900 USD to convert. You will receive 39820.50 PHP

3 0
3 years ago
. A school band sold 432 tickets for their upcoming spring concert. This represents about 85.5% of the number of tickets sold la
Law Incorporation [45]
Based on the question, we know that the
original value multiplied by .855 will equate
to 432:
ticketstastyear * 0.855 = 132
Dividing each side by 0.855 results in the
amount of tickets sold last year:
ticketslastyear ~ 505.263
We round to the nearest whole number of
505.

The answer is 505
7 0
2 years ago
Solve pls <br> 2x - 5 = 7
storchak [24]

Answer:

<h2>x = 6</h2>

Step-by-step explanation:

2x - 5 = 7 \\ 2x = 12 \\ x = 6

4 0
3 years ago
Read 2 more answers
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