3 years ago

The sum of twenty-one and five times a number f is 61

Mathematics

2 answers:

Lerok [7]3 years ago

6 0

21+(5f)=61

Subtract 21 to both sides of the equation
5f=40

Divide both sides by 5
f=8

The answer is 8

hjlf3 years ago

3 0

The answer to your question is 8

You might be interested in

Find the area of each sector.

sergey [27]

Answer:

D. $\frac{525\pi}{8}$ m²

Step-by-step explanation:

Area of the sector = ½*r²∅

Where,

Radius (r) = 15 m

Angle in radians (∅) = $\frac{7\pi}{12}$

Plug in the values into the equation

Area of sector = $\frac{1}{2} * 15^2 * \frac{7\pi}{12}$

Area of sector = $\frac{1}{2} * 225 * \frac{7\pi}{12}$

Area of sector = $\frac{1*225*7\pi}{2*12}$

Area of sector = $\frac{1,575\pi}{24}$

Simplify

Area of sector = $\frac{525\pi}{8}$

5 0

3 years ago

If the center of a circle is (1, 1), and it has a radius of 5, which is another point on the circle?

Rufina [12.5K]

Answer:

(4,5)

Step-by-step explanation:

The equation of a circle that has centre coordinates (a,b) and radius r is

(x-a)^2+(y-b)^2=r^2

so (4,5) satisfy the equation

3^2+4^2=9+16=25

6 0

3 years ago

4x10^4 in standard notation

lyudmila [28]

Answer:

40000

Step-by-step explanation:

4×10^4 = 4×10000 = 40000

6 0

3 years ago

Read 2 more answers

While Tina is shopping, she finds a pair of pants she wants to buy that is priced at $35 but is on sale for 60% off. What expres

zysi [14]

Answer:

35x.40=14

Step-by-step explanation:

you multply $35 by .40 because that is the remaining cost from 60%

8 0

3 years ago

Read 2 more answers

The average annual amount of fish eating per person is:

Fantom [35]

Answer: 15.5 pounds

Step-by-step explanation:

3 0

3 years ago