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wlad13 [49]
2 years ago
13

Russell has been training for the Emerald Valley Race. The first week he trained, he ran 5 days and took the same two routes eac

h day. He ran 2 miles around the football field before school and ran a longer route through his neighborhood after school. By the end of the week, Russell had run a total of 30 miles.
Which equation can Russell use to find how many miles, x, he ran each day after school?
Mathematics
2 answers:
melamori03 [73]2 years ago
7 0

Answer:the equation would be something like 30=5x+10

Step-by-step explanation:we know the total is 30 miles

he ran 5 days

the morning run is 2 miles

2*5=10

10 plus the unknown miles times 5 days gives us 30

so 30=5x+10 subtract 10 both sides

20= 5x=20

divide both sides by 5

x=4

Goshia [24]2 years ago
4 0

Answer:

x=4

Step-by-step explanation:

5day, 2m before school, total 10m before school

5x after school

10+5x=30

5x=30-10

5x=20

x=4

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The graphs of the given equations are parallel.

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Therefore, the slopes of both lines are 1.

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8 0
1 year ago
nhập kho 5500 kg nguyên vật liệu A với giá nhập chưa có thế GTGT 10% là 52000đ/kg . đã thanh toán bằng chuyển khoảng
Julli [10]

Answer:

i dont know

Step-by-step explanation:

8 0
2 years ago
Help me with this thank you
alexgriva [62]
(-36x^4y+144x²y^6) / (-4x²y) = 
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7 0
3 years ago
for the given license plate configuration, determine how many different plates are possinle if letters and digits (a) can ba rep
Inessa05 [86]

Answer:

a) 1,757,600 different plates possible.

b) 1,404,000 different plates possible.

Step-by-step explanation:

The permutations formula is important to solve this question.

Permutations formula:

The number of possible permutations of x elements from a set of n elements is given by the following formula:

P_{(n,x)} = \frac{n!}{(n-x)!}

(a) can be repeated:

There are 3 letters, each one with 26 possible outcomes.

2 digits, each with 10 possible outcomes

So

T = 26*26*26*10*10 = 1757600

1,757,600 different plates possible.

(b) cannot be repeated:

Here the permutations formula is used.

Three letters, from a set of 26.

Two digits, from a set of 10. So

T = P_{(26,3)}*P_{(10,2)} = \frac{26!}{(26-3)!}*\frac{10!}{(10-2)!} = 1404000

1,404,000 different plates possible.

4 0
3 years ago
A game increased in price by 1/2 . After the increase it was priced at £27. What was the original price of the game? (Hegarty Ma
lukranit [14]

Answer:

£18

Step-by-step explanation:

Let

x = original price of the game

Increase in price = 1/2

New price = £27

x + 1/2x = £27

2x+x/2 = 27

3/2x = 27

x = 27 ÷ 3/2

= 27 × 2/3

= 54 / 3

x = £18

Therefore, the original price of the game is £18

4 0
2 years ago
Read 2 more answers
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