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Aloiza [94]
3 years ago
10

Jose earned 50 points in a video game. He lost 40 points, earned 87 points, then lost 30 more pints. Write and evaluate an expre

ssion to find his final score in the video game.
Mathematics
1 answer:
Aneli [31]3 years ago
4 0
50-40+87-30=67

hope i helped
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I would like to create a rectangular orchid garden that abuts my house so that the house itself forms the northern boundary. the
eduard
The dimensions would be 2 by 2.

We are fencing in 3 sides.  The southern side is twice as expensive as the other two sides; the eastern and western sides together equal as much as the southern side.  We have $80 to spend.  

20x+10x+10x = 80
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x = 2

This means that we can have 2 feet on all sides, for a total of 10(2)+10(2)+20(2)= 80.
5 0
3 years ago
Monthly sales of a particular personal computer are expected to decline at the following rate of S'(t) computers per​ month, whe
Len [333]

Answer:

S(t) = -18t^\frac{5}{3}+2440

Company will take approximately 14 months

Step-by-step explanation:

Given function that shows the change rate of computers,

S'(t)=-30 t^{\frac{2}{3}}

Where,

t = number of months

On integrating,

\int S'(t) = -30\int t^{\frac{2}{3}} dt

S(t) = -30(\frac{t^{\frac{2}{3}+1}}{\frac{2}{3}+1})+C

S(t) = -30 (\frac{t^{\frac{2+3}{3}}}{\frac{2+3}{3}})+C

S(t) = -30(\frac{t^\frac{5}{3}}{\frac{5}{3}})+C

S(t) = -30(\frac{3t^\frac{5}{3}}{5})+C

S(t) =-18t^\frac{5}{3}+C

According to the question,

S(0) = 2,440,

\implies -18(0)^\frac{5}{3}+C=2440\implies C = 2440

Hence, the required function,

S(t) = -18t^\frac{5}{3}+2440

If S(t) = 1,000,

-18t^\frac{5}{3}+2440=1000

-18t^\frac{5}{3}=-1440

t^\frac{5}{3}=80

t = (80)^\frac{3}{5}\approx 13.86

6 0
3 years ago
What is the fractional equivalent of the repeating decimal n=0.2727…?
erastova [34]

Answer: 3/11 would be the answer

7 0
3 years ago
Parallelogram PQRS is shown on the coordinate grid. Parallelogram PQRS is dilated with the origin as the center of dilation usin
Gwar [14]

Answer:

B) Parallelogram P'Q'R'S' is smaller than parallelogram PQRS, because the scale factor is less than 1.  

Step-by-step explanation:

Given that Parallelogram PQRS is shown on the coordinate grid. Parallelogram PQRS is dilated with the origin as the center of dilation using the rule (x, y) → (0.75x, 0.75y) to create parallelogram P'Q'R'S'.

This means that sides of PQRS would be 0.75 times the sides of the original PQRS

Or PQRS will be larger

B) Parallelogram P'Q'R'S' is smaller than parallelogram PQRS, because the scale factor is less than 1.  

is the right answer

7 0
3 years ago
a regular square pyramid is 3m height and the perimeter of its base is 16m find the volume of the prism if its height is 10cm.​
Usimov [2.4K]

Answer:

240

Step-by-step explanation:

7 0
3 years ago
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