Ms. Ingham took 21 pens from a drawer to distribute to the class. If 77 pens
remain in the drawer, how many pens were originally in the drawer?

Answer: B. 6

Step-by-step explanation:

Let x be the [certain number]

Rephrase the expression

13 less than fourteen times a certain number is twenty-nine more than 7 times that number

14x-13=7x+29

Calculate

Given

14x-13=7x+29

Add 13 on both sides

14x-13+13=7x+29+13

14x=7x+42

Subtract 7x on both sides

14x-7x=7x+42-7x

7x=42

Divide 7 on both sides

7x/7=42/7

x=6

Hope this helps!! :)

Please let me know if you have any questions

Answer:

x=6 and y=20 just took a test

Step-by-step explanation:

Answer:

[tex]y = - 3x + 1[/tex]

Step-by-step explanation:

[tex] - 8 = - 3 \times 3 + b[/tex]

[tex]b = 1[/tex]

Answer:

360 creo :)

Step-by-step explanation:

creo,pero si es fue un placer ayudarte :)

Answer:

X = 30

Step-by-step explanation:

Answer:

x=30

Step-by-step explanation:

Answer:

Number of bagels = 10

Number of donuts = 25

Step-by-step explanation:

Let Number of bagels = b

Number of donuts = d

As given,

Each donut cost $0.55 and each bagel cost $1.20

⇒ Cost of d donuts = $0.55d

   Cost of b bagels = $1.20b

Also given,

Jamian bought a total of 35 bagels and donuts

⇒ b + d = 35     ........(1)

Also,

He paid a total of  $25.75.

⇒ 1.20b + 0.55d = 25.75          .........(2)

Now,

Multiply equation (1) by 1.20 , we get

1.20( b + d = 35 )

⇒1.20b + 1.20d = 42               ..........(3)

Now,

Subtract equation (2) from equation (3), we get

1.20b + 1.20d  - ( 1.20b + 0.55d ) = 42 - 25.75

⇒1.20b + 1.20d  - 1.20b - 0.55d  = 16.25

⇒0.65d = 16.25

⇒d = [tex]\frac{16.25}{0.65}[/tex] = 25

⇒d = 25

Put the value of d in equation (1) , we get

b + d = 35

⇒b + 25 = 35

⇒b = 35 - 25 = 10

⇒b = 10

∴ we get

Number of bagels = b = 10

Number of donuts = d = 25

Answer:

x

=

5

−

y

i

−

13

i

Step-by-step explanation:

Answer:

if there is no equation given with the problem, then all you do is read the y coordinate value corresponding to 25 mins and 40 mins.

here f(25) looks yo be 7 and f(40) looks yo be 20.

Answer:

u kqmnwnb jwkoajh wmkn.q

Answer:

Step-by-step explanation:

The statements supported by graphs are,

A. The concentration of the chemical decreases as the reaction progresses over time.

E. The concentration of he reactant is 160 milligrams/liter at the start of the reaction.

C. The concentration of the chemical cannot exceed 50 milligrams/liter.

The function which represent time required for the concentration of a certain chemical to reach a value of n milligrams/liter during a reaction.

                   [tex]f(n) = log 0.98(n/50)[/tex]

From given graph, It is obseved that

The concentration of the chemical decreases as the reaction progresses over time.

The concentration of he reactant is 160 milligrams/liter at the start of the reaction.

The concentration of the chemical cannot exceed 50 milligrams/liter.

Learn more about the logarithmic function here:

https://brainly.com/question/1695836

Answer:

d=4.5

Step-by-step explanation:

Answer:

22cm²

Step-by-step explanation:

radius of smaller circle= 7/2=3.5cm

area of smaller circle=π×3.5=11cm²

area of bigger circle=π×10.5(radius is 7 plus 3.5)=33cm²

area of shaded area=33-11=22cm²

Answer:

Step-by-step explanation:

[tex]\int\limits^a_b {x} \, dx \lim_{n \to \infty} a_n \neq \geq x^{2} \\ \leq[/tex]⇄⇅⇵⇔ω∈ФπΔ≅≡β·∛

Answer:

Step-by-step explanation:

x=120°

if you look, the arrows on the lines mean they’re parallel.

so

Answer:

14%

Step-by-step explanation:

Percentages are out of 100, and 7/50 = 14/100.

Answer:

The answers should be

x^2 + 8x + 7

x(x + 8) +7

Step-by-step explanation:

(x + 7)(x + 1)

x(x) + x(1) + 7(x) + 7(1)

x^2 + x + 7x + 7

x^2 + 8x + 7

Answer:

C d

Step-by-step explanation:

Answer:

Step-by-step explanation:

Since there are 16 oz in 1 lb, to find the amount in 3 lbs, you would just multiply it by 3

16 · 3 = 48

to find the price you divide the total price by number of oz.

6.95 ÷ 48 ≈ 0.1448

since money is measured in hundreths, you would round up (because thats how money works) so it would be roughly 15 cents. unless your teacher wants you to round down to 14 cents

Answer:

640 metres

Step-by-step explanation:

Area of a rectangular field = 24000 square metres

Width of a rectangular field = 120 metre

Also,

Area of a rectangular field = Length × Breadth

24000 = Length × 120

Length = [tex]\frac{24000}{120}=200[/tex] metre

Length of wire required to fence the field = Perimeter of the rectangular field

= 2 (length + width)

= 2 (200 + 120)

= 2 (320)

= 640 metres

Answer: true

Step-by-step explanation:

Answer:

5

Step-by-step explanation:

The consecutive primes starting from 2 are

2, 3, 5, 7, 11

Summing gives 2 + 3 + 5 + 7 + 11 = 28

and 28 is divisible by 7

Thus the required number of primes is 5

The fewest number of consecutive primes, starting with 2, that when summed produces a number divisible by 7 is 5.

To determine what is the fewest number of consecutive primes, starting with 2, that when summed produces a number divisible by 7, the following calculation must be performed:

Therefore, the fewest number of consecutive primes, starting with 2, that when summed produces a number divisible by 7 is 5.

Learn more in https://brainly.com/question/4184435

Answer:

80

Step-by-step explanation:

So I here's my thought process on this:

200 divided by 2 is 100

100 - 40% is 60, leaving 40 behind.

So double that and it would be:

200 - 40% is 120

200 - 120 = 80

80% is the answer.

Answer:

10

100

×

3250

=

$

325

Step-by-step explanation:

Answer:

Step-by-step explanation:

(-3/7)³ × (-3/7)⁴ = (-3/7)³⁺⁴ = (-3/7)⁷

Answer:

the answer to this question is (-3/7)^7

Answer:

Side A = 25 in

Side B = 14 in

Side C = 17 in

Step-by-step explanation:

Perimeter of a triangle = 56 in

Side B = x

Side A = 2x - 3

Side C = 1/2x + 10

Perimeter of a triangle = side A + Side B + side C

56 = (2x -3) + x + (1/2x + 10)

56 = 2x - 3 + x + 1/2x + 10

56 + 3 - 10 = 2x + x + 1/2x

49 = 3 1/2x

Note: 3 1/2x = 3.5x

49 = 3.5x

x = 49/3.5

x = 14 in

Side B = x = 14 in

Side A = 2x - 3

= 2(14) - 3

= 28 - 3

= 25 in

Side C = 1/2x + 10

= 1/2(14) + 10

= 7 + 10

= 17 in

Answer:

2

Step-by-step explanation:

subtract like this: 11-9=2

Answer:

x = 2

Step-by-step explanation:

11 = x + 9

11 - 9 = x + 9 - 9

2 = x

x = 2

Answer:

x = 59º

y = 40º

z = 59º

Step-by-step explanation:

x= 180 - 121 = 59º

59 + 40 + z = 180

       99 + z = 180

        z= 81º

y = 40º

x = 180 - (81 + 40)

x = 59

Answer:

No

Step-by-step explanation:

everything has a infinite amount of zeroes behind the decimal point or where it ends at least

Answer:

A. 40/1

Step-by-step explanation:

A. 40/1

B. 1 X 40

C. 40 X 1

D. 1/40

Ratio of gas to oil = 40 : 1

40 : 1 = 40/1

40 : 1 can also be written as 40/1 or 40 to 1