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Usimov [2.4K]
3 years ago
5

Can anyone help me 2n +5=7​

Mathematics
2 answers:
Nataly_w [17]3 years ago
5 0

Answer:

2n=2 so n=1

Step-by-step explanation:

take 5 to the other side such that it will be 2n=7-5 the positive sign will turn to negative because of crossing the equal sign  so n=1

zavuch27 [327]3 years ago
3 0

Answer:N=1

Step-by-step explanation: when trying to figure out the value to solve for “N” you begin with taking out any number next to variable . For this case you subtract 5 from the product (7) n should get 2n=2 and the value for N is 1

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What is the area of this figure? Please help
iragen [17]

Answer:

369.5 ft²

Step-by-step explanation:

Separate the figure into 2 rectangles and 2 triangles.

(see attached image)

<u>Area 1</u>

Area of a rectangle = width × length

                                 = 4 × 5

                                 = 20 ft²

<u>Area 2</u>

Area of a rectangle = width × length

                                 = 8 × (4 + 4 + 5)

                                 = 8 × 13

                                 = 104 ft²

<u>Area 3</u>

Area of a triangle = 1/2 × base × height

                             = 1/2 × (6 + 4 + 5 + 4 - 6) × 23

                             = 1/2 × 13 × 23

                             = 149.5 ft²

<u>Area 4</u>

Area of a triangle = 1/2 × base × height

                             = 1/2 × 8 × (21 + 8 - 5)

                             = 1/2 × 8 × 24

                             = 96 ft²

<u>Total Area</u>

Area 1 + Area 2 + Area 3 + Area 2 = 20 + 104 + 149.5 + 96

                                                        = 369.5 ft²

3 0
2 years ago
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5 0
3 years ago
Rewrite the equation y - 31x = 93 as a function of x.
Nastasia [14]
B is the right answer
3 0
3 years ago
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The table shows how far a distance runner has traveled since the race began. What is her average speed, in miles per hour, durin
grigory [225]

Answer:

5\ \frac{miles}{hour}

Step-by-step explanation:

<u><em>The complete question is</em></u>

The table shows how far a distance runner has traveled since the race began. What is her average speed, in miles per hour, during the interval 0.75 to 1.00 hours?

Time Elapsed (Hours) Miles Traveled (Miles)

0.50 2.00

0.75 3.50

1.00 4.75

Let

x ----> the time in hours

f(x) ----> the distance traveled in miles

so

we have

x (Hours)   0.50   0.75  1.00

f(x) (Miles)  2.00   3.50  4.75

we know that

To find the average speed, we divide the change in the output value by the change in the input value

the average speed is equal to

\frac{f(b)-f(a)}{b-a}

In this problem we have

a=0.75

b=1.00

f(a)=f(0.75)=3.50  

f(b)=f(1.00)=4.75

Substitute

\frac{4.75-3.50}{1-0.75}

\frac{1.25}{0.25}

5\ \frac{miles}{hour}

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3 years ago
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