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4 years ago

Help please!!!!!!!!!!!!!!

Mathematics

1 answer:

Lapatulllka [165]4 years ago

5 0

Answer:

3(n + 2) > 0

Step-by-step explanation:

Work on a piece at a time.

"sum of a number and two": n + 2

"three times the sum of a number and two": 3(n + 2)

"three times the sum of a number and two is greater than zero": 3(n + 2) > 0

Answer: 3(n + 2) > 0

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Help i will vote brainliest answer

mestny [16]

I am not sure
but 90 per cent its option b

7 0

3 years ago

Read 2 more answers

The measure of c is...?

joja [24]

C - is a hypotenuse,
so we can use Pythagorean theorem.
c² =a² +b²
c² = 8²+12²=64 + 144 = 16*4 +16*9=16(4+9) =16*13
c²=16*13
c=√(16*13)=√16*√13=4√13
c=4√13
Answer C. 4√13

4 0

3 years ago

If 5 slices of pizza cost $5:50 how much does

kupik [55]

The first thing we must do for this case is to define variables.

We have then:

x: number of slices

y: total cost

We write the linear function that relates the variables.

We have then:

$y = (\frac{5.50}{5}) * x$

Then, we evaluate the number of slices to find the total cost.

-two slices cost:

We substitute x = 2 in the given equation:

$y = (\frac{5.50}{5}) * 2\\y = 2.2$

Answer:

two slices = 2.2 $

-ten slices cost:

We substitute x = 10 in the given equation:

$y = (\frac{5.50}{5}) * 10\\y = 11$

Answer:

ten slices = 11 $

-half a slice cost:

We substitute x = 1/2 in the given equation:

$y = (\frac{5.50}{5}) * \frac{1}{2}\\y = 0.55$

Answer:

half a slice = 0.55 $

6 0

3 years ago

After 3.5 hours ,pasha had traveled 217 miles if she travels at the constant speed how far will she have travelled after 4 hours

vesna_86 [32]

Answer:

248 miles

Step-by-step explanation:

we know that

After 3.5 hours ,Pasha had traveled 217 miles

using proportion

Find out how many miles she will have traveled after 4 hours

$\frac{3.5}{217}\ \frac{hours}{miles}=\frac{4}{x}\ \frac{hours}{miles}\\\\x=217(4)/3.5\\\\x=248\ miles$

4 0

4 years ago

Going against the current, a boat takes 6 hours to make a 120-mile trip. When the boat travels with the current on the return tr

tankabanditka [31]

Answer:

22 miles per hour

Step-by-step explanation:

Against the current, the boat's rate of travel is ...

(120 mi)/(6 h) = 20 mi/h

With the current, the boat's rate of travel is ...

(120 mi)/(5 h) = 24 mi/h

___

The sum of boat speed (b) and current speed (c) is 24 mph. The difference is 20 mph. This lets us write the equations ...

b + c = 24

b - c = 20

Adding these two equations together, we get ...

2b + 0c = 44

b = 22 . . . . . . . . divide by 2

The rate of the boat in still water is 22 miles per hour.

5 0

4 years ago