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3 years ago

9

Select the correct answer. The difference of a number and 6 is the same as 5 times the sum of the number and 2. What is the numb

er? Đ -4 B. -2 C.-1 D. 1 â€‹

1 answer:

jolli1 [7]3 years ago

8 0

Answer:

n = 1

Step-by-step explanation:

n - 6 = 5(n-2)

n - 6 = 5n - 10

-6 +10 = 5n - n

4 = 4n

n = 4/4

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Jodie ran at an average speed of 10 km/h for 15 minutes.<br> How far did she run in km?

laiz [17]

Answer:

2.5 km

Step-by-step explanation:

15 minutes is

15 minutes * 1 hour/ 60 minutes = 1/4 hour

15 minutes = 1/4 of an hour

10 km/ hour * 1/4 hour = 10/4 km = 2.5 km

5 0

3 years ago

Read 2 more answers

Select the correct answer.

Finger [1]

Answer:

$(c)\ f(5) < g(3)$

Step-by-step explanation:

Given

$f(n) = 2(n-1) -1$

$g(n) = 3n + 6$

Required

Which is correct

$(a)\ g(6) < f(6)$

Calculate g(6) and f(6)

$f(n) = 2(n-1) -1$

$f(6) = 2(6 - 1) -1 = 2*5-1=9$

$g(n) = 3n + 6$

$g(6) =3*6 +6 =24$

<em>(a) is false, because g(6) > f(6) i.e. 24 > 9</em>

<em></em>

$(b)\ f(7) > g(10)$

Calculate f(7) and g(10)

$f(n) = 2(n-1) -1$

$f(7) = 2*(7-1)-1=2*6-1=11$

$g(n) = 3n + 6$

$g(10) =3*10+6=36$

<em>(b) is false, because f(7) < g(10) i.e. 11 <36</em>

<em></em>

$(c)\ f(5) < g(3)$

Calculate f(5) and g(3)

$f(n) = 2(n-1) -1$

$f(5) =2 *(5-1)-1 = 2*4-1=7$

$g(n) = 3n + 6$

$g(3) = 3*3+6=9+6=15$

<em>(c) is true, because f(5) < g(3) i.e. 7 <15</em>

5 0

3 years ago

Solving multi step equations <br> 2y + 8 + 4y = 44

rjkz [21]

Answer:

y=6

Step-by-step explanation:

6y+8=44

44-8=6y

6y=36

6y/6 =36/6

y=6

3 0

3 years ago

Read 2 more answers

9) The area of Vaughn's dog pen is 341square feet

Wittaler [7]

Answer:

15.5 feet

Step-by-step explanation:

Since length * width = area, we can plug in for the values we are given

We'll set x = width

So 22 * x = 341

22x = 341

x = 15.5

We can check this by multiplying 22 and 15.5 together which gives us 341

Best of luck

8 0

2 years ago

Convert 2 5/6 to an improper fraction

bearhunter [10]

Multiply the denominator by the number in front of it and then add it to the numerator. (6•2=12+5=17). The denominator stays the same. Your answer is 17/6. Hope this helped!

3 0

3 years ago