Alex was thinking of a number. Alex doubles it and gets an answer of 16.9. What was the original number?

Answers

Answer 1

Answer:

8.45

Step-by-step explanation:

Doubling a number is the same as multiplying by 2, so to go back to the original number you divide 16.9 by 2


Related Questions

Help pleaseee ill give brainliest will report if not an answer

Answers

Step-by-step explanation:

.............,.,.,.,.,.,.,.,

Guys help me plsss :((((

Answers

Answer:

2

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

A bag contains​ pennies, nickels,​ dimes, and quarters. There are 50 coins in all. Of the​ coins, ​8% are pennies and ​36% are dimes. There are 9 more nickels than pennies. How much money does the bag​ contain?

Answers

50x36= 134 as in said 8% of it is 36

GIVING BRAINLIEST, PLS HELP!!!!! :((

Write a statement that correctly describes the relationship between these two sequences: 6, 7, 8, 9, 10, and 18, 21, 24, 27, 30.

Answers

Step-by-step explanation:

1 Sequence

The numbers are in a right order but starting from 6 and ending at 10....

2 sequence

Numbers are from table of 3 and starting from 3×7 and ending up at 3×10

Hi guys please help me with this! exlapin how you got the answer instead of just putting down a random letter for points, thanks! :) ​

Answers

From the numbers between 11 and -14
Number of terms: 6
First term: -14
6th term = 11
a + (n-1)d = -14
11 + (6-1)d = -14
11 + 5d = -14
5d = -25, d = -5

From 11 you subtract 5 to the left
d = 6, c = 1, b = -4, a = -9

Which is the smallest non-negative?

Solution: c

someone please solve this question ​

Answers

Answer:

do you have what x and/or y equals

Step-by-step explanation:

NO LINKS PLEASE

what fraction is greater than 3/5 and less than 3/4 and has a denominator of 20?

Answers

Answer:13/20 and 14/20

Step-by-step explanation:

3/5=12/20 3/4=15/20

I need help! Im very confused!

Answers

Answer:

Surface area of net = 310 cm²

Step-by-step explanation:

Given:

Dimension of two same rectangle = 11 cm by 9 cm

Dimension of single rectangle = 11 cm by 7 cm

Height of two triangle = 5 Cm

Base of two triangle = 7 Cm

Find;

Surface area of net

Computation:

Surface area of net = Surface area of two same rectangle + Surface area of single rectangle + Surface area of two same triangle

Surface area of net = 2[l x b] + [l x b] + 2[(1/2)(b)(h)]

Surface area of net = 2[11 x 9] + [11 x 7] + 2[(1/2)(7)(5)]

Surface area of net = 198 + 77 + 35

Surface area of net = 310 cm²

PLS
HELP
ILL
GIVE
MORE
IF
ITS
RIGHT

Answers

Answer:

the area of the porch is 5 times larger

Step-by-step explanation:

Area of a rectangle = length x width

Original area = 15 x 6 = 90 square feet

length of width after it was enlarged 5 times = 5 x 6 = 30

New Area = 30 x 15 = 450 square feet

change in area = 450 / 90 = 5

A salesperson is selling cooking sets for $120 each. The salesperson receives 22.5% of the sales prices as commission. The salesperson sells a total of 4 units on Monday but an unknown number of units on Tuesday. The salesperson made a combined total of $351 commission for those two days. Write an equation that could be used to find the number of cooking sets x sold on Tuesday. Then solve the equation.
[Please help!]

Answers

Answer:

4(120)(.225) + x (120)(.225) = $351

9 units sold on Tuesday

Step-by-step explanation:

1. You can easily figure how much money was made on Monday by multiply the total units sold by the price per unit by the commission in decimal form.  Here you get $108.

2.  Subtract that $108 from the $351 made on both days and you get $243 made on Tuesday.

3. The equation is now the unknown number of units sold (x) times the price ($120) times the commission is decimal form (.225) equals $243.

4. Since 120 times .225 is equal to 27, the equation now becomes 9x is equal to 243.

5. Divide 243 by 27 for your answer.

A store has clearance items that have been marked down by 55%. They are having a sale advertising an additional 25% off clearance items. What % of the original price do you end up paying

Answers

Answer: 33.75%

Step-by-step explanation:

The items were marked down by 55% from their original price.

This means that the new price is:

= 1 - Percentage marked down

= 1 - 55%

= 45% of the original.

From this 45%, additional percentage of 25% is removed from this amount. The amount left will be:

= 45% * ( 1 - 25%)

= 33.75%

list some values that would make this inequality -2x>10

Answers

Answer:

-6,-9,-20,-25.

Step-by-step explanation:

You need to multiply a negative to make it positive as a negative multiplied by a negative equals a positive. But anything besides -1,-2,-3,-4,-5 and all positves can be placed.

Hi! Please explain how you got the answer! Thank you! :) ​

Answers

Answer:

(b) 6

Step-by-step explanation:

if n=5 and m=6

[tex] {6}^{2} - {5}^{2} \\ 36 - 25 = 11 \\ \\ 6 + 5 = 11[/tex]

11 less than 12

11 is greater than 10

The answer is B

Which is 6

Which of the graphs represent the equation y=5x-4 and also correctly states whether it is linear or non linear.

Answers

Answer:

B

Step-by-step explanation:

Hi! Because the equation is y=5x-4, it tells is that it intersects with the y axis at -4, and that it's slope goes up 5, right 1. Since B is the only graph that shows that, the answer is b.

Write the quotient as a mixed number. 15 ÷ 7 = 2 R1

Answers

Answer:

hi! the mixed number would be [tex]2\frac{1}{7}[/tex]

Step-by-step explanation:

a remainder can be written as 1/the divisor

Explain how this problem 12^3 x 11^2 is solved.

Answers

Answer:

you have to simplify it first and then miltiply

Step-by-step explanation:

Which of the coordinate points below will fall on a line where the constant of proportionality
is 5? Select all that apply.
A) (1,6)
B) (5, 10)
C) (1,5)
D) (3, 12)
E) (2, 10)

Answers

C 1,5 coordinates the 5
I believe it is c hope this helps!!

What is the x-intercept of the graphed line?

−2

0

1

2

Answers

Answer:

0

Step-by-step explanation:

the x-intercept is 0 because the line intercepts the x axis at the point (0,0) so the x-intercept is 0.

Help me out here!! Please!
my mom homeschools me and she has this thing called desmos so I'm trying to figure this out

Answers

so basically it’s 550, kinda hard to explain, but i hope it helped

Answer:

250 gallons of water are being pumped out each hour

Step-by-step explanation:

It tells us that W is the amount of water in the pool at a time. It also tells us that at the start there is 9000 gallons in the pool. We also know t is the time in hours so 1 t = 1 hour.

W=9000-250t

We can substitute in what we know

The amount of water in the pool = 9000 gallons - 250 gallons times 1 hour

so that means if one hour passes 250 gallons are removed, and if 2 pass then 500 are removed showing that for every hour the pump is on 250 gallons of water are being sucked from the pool

A cylinder has a radius of 4 inches and a height of 5 inches. If the radius of the cylinder is tripled and the height remains the same to create a new cylinder, what will be the difference in the surface areas of the two cylinders? Answer in terms of Pi.

Answers

Answer:

336π in²

Step-by-step explanation:

Cylinder 1

r₁= 4 inh = 5 in

Cylinder 2

r₂ = 3*4 = 12 inh = 5 in

Surface area of cylinders:

S = 2πr(r + h)S₁ = 2π*4*(4 + 5) = 72π in²S₂ = 2π*12*(12 + 5) = 408π in²

The difference is:

S₂ - S₁ = 408π - 72π = 336π in²
Question:-

A cylinder has a radius of 4 inches and a height of 5 inches. If the radius of the cylinder is tripled and the height remains the same to create a new cylinder, what will be the difference in the surface areas of the two cylinders ? Answer in terms of Pi.

Answer:-

Given:-

A cylinder has a radius of 4 inches and a height of 5 inches.

To Find:-

If the radius of the cylinder is tripled and the height remains the same to create a new cylinder, what will be the difference in the surface areas of the two cylinders ?

Solution:-

Let in case of 1st cylinder,

[tex] \bullet [/tex] Radius [tex] (r_1) [/tex] is 4 inches

[tex] \bullet [/tex] Height is 5 inches

And in case of 2nd cylinder,

[tex] \bullet [/tex] Radius [tex] (r_2) [/tex] is 3 × 4 = 12 inches [as in the question it is given that the radius of the cylinder is tripled]

[tex] \bullet [/tex] Height is 5 inches

Now,

Surface area [tex] (s_1) [/tex] of 1st cylinder

is 2πr(r + h) = 2π × 4(4 + 5)

= 8π(9)

= 72π sq inches

Surface area [tex] (s_2) [/tex] of 2nd cylinder

is 2πr(r + h) = 2π × 12(12 + 5)

= 24π(17)

= 408π sq inches

[tex] \therefore [/tex] The difference in the surface areas of the two cylinders is = [tex] (s_2 \: - \: s_1) [/tex] = (408π - 72π) = 336π sq inches

The difference in the surface areas of the two cylinders is 336π sq inches. [Answer]

Identify the indicated parts of the figure below.

Answers

Answer:

The top one is a triangle which is the back part of the shape. The bottom left one is also a triangle and the bottom right one is a rectangle

Cooper wrote checks on his checking account for $20, $20, $18, $20, and $35. He also deposited $53 in the account. Which number describes the change in the balance of his account?
A $11.99 B $ 31.39 C $ 53.41

Answers

C beacause I’m big brain

−6(4a +3) Multiply the polynomial below

Answers

Answer:

[tex] - 6(4a + 3) \\ =( - 6 \times 4a) + ( - 6 \times 3) \\ = - 24a - 18 \\ [/tex]

Step-by-step explanation:

-6(4a+3)

(-6×4a) (-6×3)

-24a-18

Megan's morning run follows a triangular path. Two legs are equal and the third leg is 4 miles longer
han each of the other legs. If the total ride is 22 miles, what is the length of the longest leg?

Answers

Answer:56544

Step-by-step explanation:

Please help, Does this graph show a constant or variable rate of change?

Answers

Answer:

constant

Step-by-step explanation:

Answer:

pretty sure it's a variable change

Step-by-step explanation:

The value is decreasing by a different number each time, in the same interval

When x=6,y=14.find y when x=30

Answers

Answer:

y = 70

Step-by-step explanation:

6 x 5 = 30

14 x 5 = 70

in science class 2/3 of the students have a sister. Of the students who have a sister 1/2 have a brother which model shows the fraction of students that have both a sister and brother

Answers

Answer:

1/3

Step-by-step explanation:

How are rectangles and parallelograms different?
rectangles have four right angles; parallelograms have two sets of congruent angles.
parallelograms have four congruent sides; rectangles have four sides that are not congruent.
rectangles have four congruent sides; parallelograms have four sides that are not congruent.
parallelograms have four right angles; rectangles have two sets of congruent angles.

Answers

Answer:

B

Step-by-step explanation:

Can someone please help me with math.

Answers

Answer:

Its C

Step-by-step explanation:

Why the circle for parallelogram does not intersect the circle for trapezoid

Answers

Answer:

i think that it is B trapeziod and A triangle

Step-by-step explanation:

plz give me brainliest

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