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3 years ago

Help! I need an answer with an explanation or else I loose marks

Mathematics

1 answer:

7nadin3 [17]3 years ago

6 0

Answer:

c. (1,-2)

Step-by-step explanation:

by adding them together you can cancel out the y's and solve for x. once you get x, you can plug it into either equation and get y.

hope this helped :)

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Oksana_A [137]

Hey again!

The answer to your question is 10 meters.

We can solve this by multiplying 15 and 2/3, and you get 10

Hope it helps!

7 0

3 years ago

A car can travel 150 miles on 4 gallons of petrol. How far can it travel on 6 gallons?

Ket [755]

Answer: The car can travel 225 miles on 6 gallons of petrol.

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2 years ago

A basketball player made 63 out of 100 attempted free throws . What percent of free throws did the players make

viktelen [127]

63 out of 100=63/100=%63
The answer is %63
Pls, select Brainlest.

7 0

3 years ago

Will someone please help me here

grandymaker [24]

$\bf a) \\\\\\ \begin{array}{ccll} miles&minutes\\ \text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\ 11&74\\ 1&x \end{array}\implies \cfrac{11}{1}=\cfrac{74}{x}\implies x=\cfrac{1\cdot 74}{11} \\\\\\ b) \\\\\\ \begin{array}{ccll} lbs&\$\\ \text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\ 20&8\\ 1&x \end{array}\implies \cfrac{20}{1}=\cfrac{8}{x}\implies x=\cfrac{1\cdot 8}{20}$

7 0

3 years ago

Helen practiced the piano 5 days last week. The list below shows the number of minutes she practiced each day: 20,25,30,20,30 Wh

LekaFEV [45]

Answer:

Step-by-step explanation:

Given the data:

X : 20,25,30,20,30

Mean absolute deviation :

Σ(x - xbar) / n

n = sample size = 5

xbar = ΣX / n = (20+25+30+20+30) /5

xbar = 25

((20-25) + (25-25) + (30-25) + (20-25) + (30-25)) / 5

We take the absolute values, hence, negative signs are ignored :

(5 + 0 + 5 + 5 + 5) / 5

20 / 5

= 4

8 0

2 years ago