Jerry started doing sit-ups every day. The first day he did 19 sit-ups. Every day after that he did 4 more sit-
ups than he had done the previous day. Today Jerry did 81 sit-ups. Write an equation that could be solved
to find the number of days Jerry has been doing sit-ups, not counting the first day. Let n represent the
number of days.
An equation that can help Jerry to find the number of days he has been dolng sit-ups is given by

Answers

Answer 1

Answer:

81 - 19 = 62 ÷ 4 = 15.5 days (?)


Related Questions

factor the trinomial below
x^2+15x+56
a. (x+4)(x+14)
b. (x-7)(x-8)
c. (x+7)(x+8)
d. (x-4)(x-14)

Answers

C is the answer because 7+8= 15 and 7x8= 55

In rectangle LONG, LN = 40 and ON=24. Find LO.​

Answers

Answer: LN 40

Step-by-step explanation: Because thin of the answers and how to do it

Answer: LN 40

Step-by-step explanation:

On a windless day In Janurafy, Carl ties 300 helium filled balloons to his lawn chair 80ft from his 20ft tall house, and begins a vergical ascent into the sky. Hos high is carl when the angle lf depression from carl to the top of his house is 42°

Answers

Answer:

The answer is below

Step-by-step explanation:

θ = 90° - 42° = 48°

The angle formed is a right angled triangle, therefore trigonometric identities can be used to find the length of the triangle sides.

tan(θ) = opposite / adjacent

tan(48) = 80 / h

h = 80 / tan(48)

h = 72.03 ft

h is the vertical distance from carl to the top of his house, to get his total height to the ground (H), we use:

H = h + height of house

H = 72.03 + 20

H = 92.03 ft

Therefore Carl is 92.03 ft high

1 Find the x-intercept as a point (x,y).
I'm not quite sure what to do can someome please help me quick. I'll make brainliest​

Answers

Answer:

x,0

Step-by-step explanation:

x-intercept just means where the line crosses the x axis. the x-intercept is x,0

Answer:

X intercept is ( -1 , 2)

Step-by-step explanation:

similar right triangles plss helpp

Answers

Answer:

your añswer is c) I hope it helps!

Answer:

C

Step-by-step explanation:

Find the area of the trapezoid. A drawing of a trapezoid with length of two parallel sides equal to a mixed fraction of one and a half centimeters and three and a half centimeters. The altitude of the trapezoid is 4 centimeters.

Answers

Answer:

[tex]10cm^2[/tex]

Step-by-step explanation:

We are given that

Two parallel sides of trapezoid are

[tex]a=1\frac{1}{2}cm=\frac{3}{2}=1.5cm[/tex]

[tex]b=3\frac{1}{2}=3+0.5=3.5 cm[/tex]

Height of trapezoid, h=4 cm

We have to find the area of the trapezoid.

We know that

Area of trapezoid=[tex]\frac{1}{2}(a+b)h[/tex]

Where a and b are two parallel sides

h=Height of trapezoid

Using the formula

Area of trapezoid=[tex]\frac{1}{2}(1.5+3.5)\times 2[/tex]

Area of trapezoid=[tex]10cm^2[/tex]

Solve the simultaneous equations.
Please help

Answers

Answer:

x=1/2, y=4

Step-by-step explanation:

Double both sides of the top equation:

4x+6y=26

Now subtract boths sides of the second one from the first one:

(4x+6y) - (4x-y) = 26 - (-2)

7y = 28

so y = 4

4x-y=-2 so 4x-4=-2

4x=2

x=1/2

Find an expression which represents the difference when (6x-3y) is subtracted from (9x+2y) in simplest terms.

Answers

Answer:

[tex]3x+5y[/tex]

Step-by-step explanation:

Subtract (6x-3y) from (9x+2y):

[tex](9x+2y)-(6x-3y)[/tex]

This can also be seen as:

[tex](9x+2y)-1(6x-3y)[/tex]

Distribute the -1 to (6x-3y):

[tex](9x+2y)-1(6x)-1(-3y)\\\\(9x+2y)-6x+3y[/tex]

Simplify the parentheses:

[tex]9x+2y-6x+3y[/tex]

Group like terms:

[tex](9x-6x)+(2y+3y)[/tex]

Combine:

[tex]3x+5y[/tex]

This expression can't be further simplified. Therefore, 3x+5y is the answer.

:Done

Find the sum. Write your answer in standard form. Look at the screenshot below!

Answers

Step-by-step explanation:

[tex] \tt{(6 {x}^{3} + 3 {x}^{2} + 3) + (2 {x}^{3} - 5x + 1) }[/tex]

Remove the unnecessary parentheses

⟶ [tex] \tt{6 {x}^{3} + 3 {x}^{2} + 3 + 2 {x}^{3} - 5x + 1 }[/tex]

Combine like terms. Like terms are those which have the same base. Remember that only coefficients of like terms can be added or subtracted and their bases remains the same.

⟶ [tex] \tt{6 {x}^{3} + 2 {x}^{3} +3 {x}^{2} + 3 + 1 - 5x}[/tex]

⟶ [tex] \tt{8 {x}^{3} + 3 {x}^{2} + 4 - 5x}[/tex]

In standard form , the expression should be written in a way that power of variables goes from highest to lowest.

[tex] \red{ \boxed{ \boxed{ \tt{Our \: final \: answer : \boxed {\underline{ \tt{8 {x}^{3} + 3 {x}^{2} - 5x + 4}}}}}}}[/tex]

Hope I helped ! ♡

Have a wonderful day / night ! ツ

▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁

question in pic help

Answers

Answer:

Step-by-step explanation:

I think it is C

Find the area of a regular pentagon with a side length of 5cm. Round to the nearest tenth.(high reward)

Answers

Answer:

40 cm2

Step-by-step explanation:

A=1

45(5+25)a2=1

4·5·(5+2·5)·52≈43.01194cm²≈40.0cm²

Answer:

43.01

:)

Step-by-step explanation:

please help me with this im really stuck​

Answers

THE ANSWER IS: y = -x+9

y=mx+b
m=slope=(y2-y1)/(x2-x1)
use the points (0,9) and (9,0)
(0-9)/(9-0) = -9/9 = -1
so m=-1

b is the y-intercept which is where x=0
the line crosses the y axis at y=9
so b=9

plugging in m and b into y=mx+b,
you get y=-x+9

Hellppppp pleaseeee ASAP

Answers

Answer:

can you type the answer because the picture doesn't show i can help you I'm in college and know basically everything about math type it in and i gotchu homie

Answer:

Hola its MEEEE

Step-by-step explanation:

Please help! Will mark brainliest when I get the results back ;)

Answers

Answer:

13.7ft^2

Step-by-step explanation:

Area for triangle:

The formula for the area of a triangle in this scenario is area=(b*h)/2

The base length is 3.6ft and the height is 4.8ft. We can now substitute these values into the equation. So:

area=(3.6*4.8)/2

area=8.64ft^2 for the triangle

Area for semi-circle:

The formula for the area of a circle is area=pi*r^2. To find the area of the semi-circle, we can half the area of the circle at the end.

The question says to use 3.14 for the value of pi.

The diameter is given as 3.6ft, so to find the radius, we simply divide the diameter by 2; so 3.6/2=1.8ft for the radius

Now, we can just substitute these values into the equation above. So:

area=3.14*(1.8)^2

area=3.14*3.24

area=10.1736ft^2 (DO NOT ROUND THIS ANSWER!!).

However, this area is for the COMPLETE circle. We want the area for the semicircle shown above. Therefore, divide the circle area by 2. So:

10.1736/2=5.0868ft^2 for the semicircle.

Total area of shape

Now we have the area of the two separate shapes, we can simply add them together. So:

8.64ft^2 + 5.0868ft^2 = 13.7268ft^2 altogether (unrounded)

Now, finally we must round to 1/10, or to 1 decimal place. Therefore, the final value for the area would be 13.7ft^2.

Hope this helped!!

When a plot is sold for Rs. 18,700, the owner loses 15%. At what price must that plot be sold in order to gain 15%?

Answers

Answer: Rs. 25,300

Step-by-step explanation:

First find the original price of the plot:

Assume this price is x:

x * ( 1 - 15%) = 18,700

0.85x = 18,700

x = 18,700/0.85

x = Rs. 22,000

To make a gain of 15%, sell at:

= 22,000 * (1 + 15%)

= 22,000 * 1.15

= Rs. 25,300

Abby is registering at a Web site and must select a six-character password.The password can contain either letters or digits.
a.How many passwords are possible if characters can be repeated? if no characters can be repeated?
b.How many passwords are possible if all characters are letters that can be repeated? if the password must contain exactly one digit? Which type of password is more secure? explain

Answers

Answer:

a. 2176782336 with repeated characters. 1402410240 with no repeated characters.

b. 7964171460 when all letters can be repeated, but not numbers. 118813760 when only one number and letters can be repeated.

I believe that the password with all letters able to repeat and numbers not being able to is the most secure password, because if someone were to guess the password there is a 1/7964171460 chance of guessing the password.

Step-by-step explanation:

A. Since there are 26 different letters and 10 different numbers, there are 36 characters we can type. If characters can be repeated then, there is 2176782336 different passwords, since on all six number there are 36 possibilities each. So, 36 x 36 x 36 x 36 x 36 x 36 or 36^6 is to evaluated to find the answer. If characters are not to be repeated, there are 1402410240 different passwords, since on the first number there are 36, second has 35, third has 34, fourth has 33, fifth has 32, and sixth has 31. So, 36 x 35 x 34 x 33 x 32 x 31 is to be evaluated to solve this.

B. Since all characters that are letters can be repeated, then there are 26 letters to use forever and 10 numbers you can use with a limit. So, 36 x 35 x 34 x 33 x 32 x 31 which is to be solved if only numbers were to be used, which is 1402410240. Then, you add that with 36 x 35^5 and 36 x 35 x 34^4 and 36 x 35 x 34 x 33^3 and 36 x 35 x 34 x 33 x 32^2. which will be 7964171460. If the password must contain one digit, then you must multiply 10 with 26^5. Since, there is 10 different digits to use for the first number and 26 letters to choose from for the other five. So, it will be 26^5 times 10 which is 118813760.

Please help.
Is Algebra.

Answers

Y= -6 - 26 because the equation y + 2 = -6(x + 4) you use distributive property so it is now y + 2 = -6x - 24 now take the 2 and subtract it from -24 giving -26 giving the answer y = -6 - 26

I probably said that in a really confusing way but I think I’m correct

A rectangular prism has a length of 12 in., a width of 5 in., and a height of 414 in.

The prism is filled with cubes that have edge lengths of 14 in.

How many cubes are needed to fill the rectangular prism?



Enter your answer in the box.

To fill the rectangular prism,
cubes are needed.

Answers

Answer:

9.0524781341

Step-by-step explanation:

5 × 12 × 414 = 24,840 (volume of the prisim)

14 × 14 × 14 = 2744 (volume of the cubed)24,840 ÷ 2744 = 9.0524781341

Answer:

9 :)

Step-by-step explanation:

Ethan and Bob are having a skateboard race. Ethan began at the starting line
and rode at a constant rate of two feet per second. Bob had a fourteen-foot
head start and rode three feet every five seconds.
What's is the linear equation

Answers

Answer:

aa

Step-by-step explanation:

aa

Which table shows equivalent ratios between the values of x and y?

Answers

Answer:

Option C

Step-by-step explanation:

The y values are 2.5 times the x value. Only graph 3 shows the correct numbers.

Hope it helps!

15 = x + 4
whats the answer

Answers

Answer:

11

Step-by-step explanation:

15-4 = x

15-4 = 11

x = 11

to isolate x, you move 4 to the other side and it becomes 15-4 = x

Find the gradients of line a and b

Answers

════════ ∘◦❁◦∘ ════════

Answer

• Line A = 4

• Line B = (-2)

═══════════════════════

Formula of the gradient

[tex]m = \frac{y2 - y1}{x2 - x1} [/tex]

══════════════════════════

Known that

•Line A

x1 = 0

y1 = -6

x2 =5

y2 = 14

• Line B

x1 = 7

y1 = -6

x2 = -3

y2 = 14

══════════════════════════

Way to find gradient

•Line A

[tex]m = \frac{y2 - y1}{x2 - x1} = \frac{14 - ( - 6)}{5 - 0} = \frac{20}{5} = 4[/tex]

•Line B

[tex]m = \frac{y2 - y1}{x2 - x1} = \frac{14 - ( - 6)}{( - 3) - 7} = \frac{20}{ - 10} = ( - 2)[/tex]

══════════════════════════

For moderators that see this

#Moderators please don't be mean, dont delete my answers just for approval from your senior or just to get the biggest moderation daily rank. This answer is long and take a lot of my time, how can you just instanly delete this? :(

══════════════════════════

Helpppppppppppppppppp is this right

Answers

Answer:

The first one is B and the second one is correct

Step-by-step explanation:

Answer:

I think 1 is actually B and 2 is right -Your friend, Bill Cipher

Step-by-step explanation:

Write the expression using only positive exponents. Assume no denominator equals zero.
4y^-2

Answers: none of these
-8y^2
1/4y^2
16y^2
4/y^2

Answers

Answer:

The answer is

[tex] \frac{4}{ {y}^{2} } [/tex]

Sal has 3 of a sheet of poster board. Four friends are sharing the sheet equally. What fraction of the original sheet does each friend get?​

Answers

Answer:

Step-by-step explanation:

3 sheets are shared between four friends.

Each friends will get = 3 ÷ 4

                                 = [tex]\frac{3}{4}[/tex]

Consider the following algebraic expression:

3x-4xy+10y+1

What are the terms?

Group of answer choices

A :The terms are 3x, 4xy, 10y, 1

B: The terms are 3x, -4xy, 10y

C: The terms are 3, 4, 10, 1

D: The terms are 3x, -4xy, 10y, 1

E: The terms are 3, -4, 10

F: The terms are 3x, 4xy, 10y

G: The terms are 3, 4, 10

H: The terms are 3, -4, 10, 1

Answers

The answer is D. The minus sign before the 4 tells you that the 4 is negative.

Using The graph below identify the axis of symmetry for the parabola below 

Answers

Answer:

x=-3

Step-by-step explanation:

The axis of symmetry is the line that separates a parabola directly in half. It is measure on x axis because it is being split in terms of that number. Next, you identify the origin and find exactly where the parabola is in half and that is your answer. Another way to do this would be to identify the vertex of the parabola. The answer is the x coordinate of the location of the vertex. (The highest point of a parabola.)


For a science experiment, Jack adds 1 tsp of salt to 3 tsp of water. Mika adds 4 tsp
of salt to 9 tsp of water. Whose water is saltier?

Answers

Answer:

Mika

Step-by-step explanation:

Jack's water is 1/3 salty water while Mika's water is 4/9 salty water and 1/3 = 3/9. 4/9 is greater than 3/9 so mika's is saltier.

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A telephone pole casts a 10 foot shadow. A horse that stands 5.5 feet tall casts a 2.5 foot shadow. How tall is the pole?

Answers

Answer:

robmxoxoxooxnananaanamansnnananamamaa

Suppose a constellation of stars is plotted on a coordinate plane. The coordinates of the first star are (–2, 4). The second star is translated down 4 units. What are the new coordinates?

Answers

Answer:

Coords (-2,0)

Step-by-step explanation:

Translation means moving the point in the direction that is stated by the amount stated. Down means decreasing the number value along the y-intercept. So using simple math subtract 4 by 4 and you get 0. Since we don't move the left or right which means going along the x-intercept lines. We get (-2,0)

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