Find the sum of all multiples of 7 lying between
500 & 900​

Answers

Answer 1

Answer:

Sₙ = 57/2 * (504 + 896) = 39900

Step-by-step explanation:

first multiple of 7 after 500 is: 72 *7 = 504

last multiple of 7 before 900 is: 128 *7 = 896

a₁ = 504

aₙ = 896  

where n = 128-72 +1 = 57

sum of arithmetic sequence: Sₙ = n/2 * (a₁ + aₙ)

Sₙ = 57/2 * (504 + 896) = 39900


Related Questions

What is the y intercept 8th math

Answers

Answer:

(0,1)

Step-by-step explanation:

the y intercept is when x = 0

Answer:

(0.3) , That's It love hope this works

pls help 20 points!!

Answers

Answer:

[tex]\huge\boxed{\sf 18 cm\²}[/tex]

Step-by-step explanation:

The figure consists of 2 rectangles.

Rectangle 1 Area:

Length = 5 cm

Width = 2 cm

Area = Length * Width

A = 5 * 2

A = 10 cm²

Rectangle 2 Area:

Length = 4 cm

Width = 2 cm

Area = 2 * 4

A = 8 cm²

Area of the whole figure:

= Rectangle 1 + Rectangle 2

= 10 + 8

= 18 cm²

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

~AH1807

Answer:

[tex]\Large \boxed{\sf 18 \ cm^2}[/tex]

Step-by-step explanation:

Split shape into two rectangles

Calculate area of the two rectangles and add them

[tex]6\times 2+3 \times 2=18[/tex]

what is the solution of the system equation?
y=3x+7
y=x-9

Answers

Answer:

y=-17, x=-8

Step-by-step explanation:

x-9=3x+7

Isolate x for x-9=3x+7;

x-9=3x+7

Add 9 to both sides:

x-9+9=3x+7+9

Simplify;

x=3x+16

Subtract 3x from both sides;

x-3x=3x+16-3x

Simplify;

-2x=16

Divide both sides by -2;

-2x/-2=16/-2

simplify: -2x/-2

=x

Simplify 16/-2:

x=-8

For y=x-9 substitute x=-8;

y=-8-9

Simplify;

y=-17

The solutions to the System of equations are;

y=-17, x=-8

whats the radius and center of (x+4)^2+(y-2)^2=9

Answers

I believe the center would be (-4,2) while the radius should be 3.

Simplify. Consider all cases. |12 - x|

The second one is filled out. It would be appreciated if someone filled out the first and third.

Also, I am giving out brainliest and a follow + 50 points. Please help me guys.

Answers

Answer:

x-12 if x>12

0 if x is 12

12-x if x<12

Step-by-step explanation:

hope it helps

x-12 if x>12

0 if x is 12

12-x if x<12

Tia's parents gave her $20 to spend at the spring carnival. she spends $5 on funnel cake and the rest on ride tickets. if each ride ticket how many tickets did she purchases

Answers

Answer:

okay so do 20-5=15 then divide how much each ticket costs and you get the answer.

Write as a square of a binomial

4.8xy+36y^2+0.16x^2

Answers

(15y+x)^2

That’s your answer. I hope i helped!

The value of x for the system is 1. What is the value of y?*
1 point
3x + y = 9
y = -4x + 10
1. Substitute the value of y in the first equation:
2. Combine like terms:
3. Apply the subtraction property of equality:
4. Apply the division property of equality:
3x + (-4x + 10) = 9
-x+ 10 = 9
-X = -1
x = 1
O y = 14
O y = 12
O y = 6
O y=3
When loesolved
system lisin
bstitution bet7
TA

Answers

The answer should be y=6

Find the distance between the points (-1,4) and (2,4).

Answers

Answer:

3

Step-by-step explanation:

❌❌❌WILL GIVE BRAINLIEST

Use three different values of n to demonstrate that 2n + 3n is equivalent to 5n.

Answers

Answer: n=1,2,3

Step-by-step explanation: if we plug in these numbers 2*1+3*1=5*1 this works. If we do this for 2 then we have 2*2+3*2=10 and 5*2= 10 this also works. The same thing with 3.  2*3+3*3=15     5*3=15

Hope this helps!

Solve the system of equations
3m+3n+36
8m-5n+31

Answers

The answer I got was (7,5)

Answer:

371m-2n+31

Step-by-step explanation:

3m+3n+368m-5n+31

=3m+368m+3n-5n+31

=371m+3n-5n+31

=371m-2n+31

Part A: Let y represent the number of rabbits after x years. Which functioncan be used to model y as a function of x, where x is a non negative number ?

А. y = 10 (3) ^ (x - 1)

В. y = 10 (3) ^ x

C. y = 3 (10) ^ (x - 1)

D . y = 3 (10) ^ x

Answers

Answer:

y = 10(3)x

Step-by-step explanation:

The exponential function that can represent the population of rabbits after [x] years is y = 10(3)ˣ.

What do you mean by domain and range of a function?

For any function y = f(x), Domain is the set of all possible values of [x] for which [y] exists. Range is the set of all values of [y] that exists for the given domain.

Given is rate of increase of a rabbit's population.

The exponential function that can represent the population of rabbits after [x] years can be written as -

y = 10(3)ˣ

Refer to the graph attached.

Hence, the exponential function that can represent the population of rabbits after [x] years is y = 10(3)ˣ.

To solve more questions on functions, visit the link below -

brainly.com/question/1632425

#SPJ2

Ms. Applegate rented a car for a vacation. She had to pay $15 to rent the car. Then, she paid $10 per
day while she used the car. If the final bill was $45, how many days did Ms. Applegate rent the car
for?

Answers

Answer:

she used the car for 3 days

Step-by-step explanation:

1. = 10$

2. =10$

3. =10$

the rent was 15$ so 30 + 15 =45$

Answer:

yay i got the spam answerer reported

Step-by-step explanation:

Please help i will give brainliest !!!!

Nasir spent $131 on shirts. Dress shirts cost $28 and plain shirts cost $15. He bought a total of 7 shirts.

How many of each type of shirt did Nasir buy?

DRESS SHIRTS:
and

PLAIN SHIRTS:

Answers

Answer:

2 dress shirts

5 plain shirts

Step-by-step explanation:

2 dress shirts = 28x2=56

5 plain shirts =15x5=75

56+75=131

2+5=7

What is the image point of (-1, 1) after a translation right 2 units and
down 1 unit?

Answers

1,0 should be right :)

help on this pls! thank u!

Answers

Answer:

Step-by-step explanation:

Given the square below, what is the value of s? Answer should be written as a fraction.
Area = 4/9


Answers

Step-by-step explanation:

s = 2/3

because A = SxS = 2/3 x 2/3 = 4/9

s=?
A=4/9 ft sq
A=s^2
s^2=4/9
s= √4/9
s=2/3 ft

45 POINTS!!!!!!!!!!!!!!!!!!!!!!!!!!!! If △EFG (purple triangle) is the image of △ABC (blue triangle), how could △EFG have been created? Graph A. △ABC was reflected over the x-axis to create △EFG. B. △ABC was reflected over the y-axis to create △EFG. C. △ABC was rotated 360∘ about the origin to create △EFG. D. △ABC was rotated 180∘ about the origin to create △EFG.

Answers

The answer c is correct.

During a 40% off sale, Tessa pays $24 for a sled. What was the original price?

Answers

Answer:

$33.6

Step-by-step explanation:

24*1.4=33.6

the 1.4 represents the added 40% to find the original price of the sled

Answer:

original price = 40

Step-by-step explanation:

make an equation using the information given in the question, x will represent the original price

x - 0.4x = 24

or

x - 2/5x = 24

solve for x

x - 2/5x = 24

3/5x = 24

x = 40

The ratio of the number of boys to the number of girls in choir is 5 to 4. There are 60 girls in the choir. How many boys are in the choir A. 75. B. 61. C. 48. D. 80

Answers

the answer is actually A.B

Answer:

A

Step-by-step explanation:

60÷4 = 15

5×15=75, that's how many boys

Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.

The diagram below shows the contents of a jar from which you select marbles at random.

An illustration of a jar of marbles is shown. Four of the marbles are labeled with an upper R, seven of the marbles are labeled with an upper B, and five of the marbles are labeled with an upper G. The key identifies upper R to represent red marbles, upper B to represent blue marbles, and upper G to represent green marbles.

What is the probability of selecting a red marble, replacing it, and then selecting a blue marble? Show your work.
What is the probability of selecting a red marble, setting it aside, and then selecting a blue marble? Show your work.
Are the answers to parts (a) and (b) the same? Why or why not?

Answers

Answer:

A:

probability of red = 4/16 = 1/4

prob(blue) = 7/16

probability of red, then blue is (1/4)(7/16) = 7/64

B:

probability red = 1/4

probability blue = 7/15

probability of red, then blue = (1/4)(7/15) = 7/60

c) your decision

Step-by-step explanation:

i took the test

The solution is,

A. 7/64 is the probability of selecting a red marble, replacing it, and then selecting a blue marble.

B. 7/60 is the probability of selecting a red marble, setting it aside, and then selecting a blue marble.

C. the answer is no.

What is probability?

Probability can be defined as the ratio of the number of favorable outcomes to the total number of outcomes of an event.

here, we have,

given,

There are 4 red marbles.

There are 7 blue marbles.

There are 5 green marbles.

There are 16 marbles in total.

A:

Answer = (probability of selecting a red marble)(probability of selecting a blue marble)

First, the probability of selecting a red marble.

probability of red = 4/16 = 1/4

probability(blue) = 7/16

probability of red, then blue is (1/4)(7/16) = 7/64

B:

Answer = (probability of selecting a red marble)(probability of selecting a blue marble)

First, the probability of selecting a red marble.

probability red = 1/4

probability blue = 7/15

probability of red, then blue = (1/4)(7/15) = 7/60

c) obviously,

7/64 ≠ 7/60

So the answer is no.

To learn more on probability click:

brainly.com/question/11234923

#SPJ3

Estimate the sum 4.86+9.57​

Answers

Answer:

about 14 or 14.3 to be more specific

Step-by-step explanation:

Step-by-step explanation:

here is the my estimation for this is is 14.43

The graph models the amount of radioactive element present over the course of a 10-minute experiment.



What is the average rate of change of the amount of the element over the 10-minute experiment?

A.
-2.0 g/min

B.
-5.0 g/min

C.
-0.2 g/min

D.
-1.8 g/min

Answers

Answer:

D is the answer - 1.8 g/min

Step-by-step explanation:

PLS HELP ME I WILL GIVE YOU BRAINLIEST!

Answers

43.96/14

Step-by-step explanation:

If the sum of the measures of the interior angles of a polygon is 1920°, how many sides does it have? math

Answers

Answer: There is no polygon with the sum of the measures of the interior angles of a polygon is 1920°.

Step-by-step explanation:

The sum of the measures of interior angles of a polygon with [tex]n[/tex] sides is given by:-

[tex](n-2)\times180^{\circ}[/tex]

Given: The sum of the measures of the interior angles of a polygon is 1920°.

i.e. [tex](n-2)\times180^{\circ}=1920^{\circ}[/tex]

[tex]n-2=\dfrac{1920}{180}\\\\ n= \dfrac{1920}{180}+2\\\\ n=\dfrac{2280}{180}=12.67[/tex]

But number of sides cannot be in decimal.

Hence, there is no polygon with the sum of the measures of the interior angles of a polygon is 1920°.

PLEASE HELP ME ASAP! I WILL GIVE YOU BRAINLIEST!!!!

Answers

Answer:

i dont know sorry

Step-by-step explanation:

i dont know sorry

Given the diagram below, what is the value of x?

Answers

Answer: x= 8

Step-by-step explanation

5 times 8 = 40 plus 12 = 52

Estimate the sum by rounding each number to the nearest half or whole.
2 1/2 + 5 5/8

Answers

Answer:

8

Step-by-step explanation:

1/2 goes to 3/4.. 5/8 goes to 3/4 as well, and both of them together would be 1

Last week, Lisa drove 12 meters to visit her uncle. Is it meters, centimeters, kilometers, or millimeters?

Answers

Answer:

meters

Step-by-step explanation:

judging by the fact that it says meters i'd say that's the answer. hope this helps :)

Help!!! I don’t get this

Answers

S, sample space :

all the possible outcomes of an experiment

number × sampel space = 8

Answer :

D. HHH, HHT, HTH, HTT, THH, THT, TTH, TTT

*answer can get from the list of sample space (in pic)

Answer :

A.

* answer can get from the final of tree diagram (in pic)

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