Angela has 3 pennies. She tells her friend that she has 3/10 of a dollar. Is she correct? Why or why not?

Answers

Answer 1

Answer:

Yes

Step-by-step explanation:

She is correct because 3/10 of 100 (a full dollar) is 0.3 which is 3 in pennies/cents. You could also do 3% of 100 which is 3 (pennies/cents)

Answer 2
She is not correct.

Is should be 3/100 (0.03 or $0.03)

I penny can be written as $0.01

3/10 is 0.3 or $0.30(which is 30 cents or three dimes)

Hope this helps!

Related Questions

What is the value of x?

Answers

Your answer should be 73. This is because all the interior angles of a triangle equate to 180

If I’m correct, could you please give me brainliest?

Sofia leans a 28-foot ladder against a wall so that it forms an angle of 67^ with the ground. How high up the wall does the ladder reach? Round your answer to the nearest hundredth of a foot if necessary.

Answers

Answer:

23.43 feet

Step-by-step explain

by my accurate accusations

identify the trinomial that is not a perfect square​

Answers

Answer: To test whether the given trinomial is a perfect square, we should try to write the trinomial in the form of a² + 2ab + b² (or) a² - 2ab + b² If we are able to write the given trinomial in the above form, then it is perfect square. Otherwise the given trinomial is not a perfect square.

Step-by-step explanation:

Use the distributive property to remove the parentheses.
(v + 10)7

Answers

Answer:

7v+70

1v x 7=7v

10 x 7=70

Step-by-step explanation:

Sorry if wrong!

Answer:

the answer is

7v + 70

What is the value of x in the figure below? In this diagram, ABD similar to CAD.

Answers

Answer:

x = [tex]\frac{25}{4}[/tex] so the answer is B

Step-by-step explanation:

0 = 5² - 2х + 6

a) x = 1 ± 3i / 2
b) x = 1 ± √11 / 5
c) x = 1 ± i √29 / 5​

Answers

Answer:

c) x = 1 ± i √29 / 5​

Step-by-step explanation:

assuming we are solving for x we can use the quadratic formula

quadratic formula : [tex]\frac{-b+or-\sqrt{b^2-4(a)(c)} }{2(a)}[/tex]

where the values of a,b and c are derived from the equation

the equation is put in quadratic form : ax² + bx + c

so in 5x² -2x + 6 a = 5 , b = - 2 and c = 6

we then plug these values of a, b and c into the quadratic formula

recall quadratic formula [tex]\frac{-b+or-\sqrt{b^2-4(a)(c)} }{2(a)}[/tex]

a = 5 , b = - 2 , c = 6

[tex]\frac{-(-2)+or-\sqrt{(-2)^2-4(5)(6)} }{2(5)}[/tex]

remove parenthesis at -(-2) to get positive 2 because the negative signs cancel out

[tex]\frac{2+or-\sqrt{(-2)^2-4(5)(6)} }{2(5)}[/tex]

evaluate exponent

[tex]\frac{2+or-\sqrt{4-4(5)(6)} }{2(5)}[/tex]

multiply -4(5)(6)

[tex]\frac{2+or-\sqrt{4-120} }{2(5)}[/tex]

subtract 120 from 4

[tex]\frac{2+or-\sqrt{-116} }{2(5)}[/tex]

multiply 2 and 5

[tex]\frac{2+or-\sqrt{-116} }{10}[/tex]

because we cant have a negative square root we replace the negative sign with i (which equals -1 )  and add it to the outside of the square root

[tex]\frac{2+or-i\sqrt{116} }{10}[/tex]

we then simplify  the radical

[tex]\frac{2+or-2i\sqrt{29} }{10}[/tex]

we then simplify the fraction

2/10 = 1/5 so both 2's cancel out

[tex]\frac{1+or-i\sqrt{29} }{10}[/tex]

the answer is C

find the domain of
- y/(y-6) +15/(y+6)
- y-10/y^2+3

Answers

Answer:

Step-by-step explanation:

Domain of a function represents the set of x-values (input values) and y-values (output values) of the function represent the Range of the function.

Given function is,

If Domain (input values) of this function is,

{-12, -6, 3, 15}

Table for the input-output values of this function,

x        -6         3        15       -12

y        11         5         -3        15

11. An astronaut travels 32 million miles to Mars, turns around and comes back the same way, ending up exactly where he started his trip. What is his displacement?

Answers

Answer:

0

Step-by-step explanation:

Since displacement is the distance between the journey starting point and the final point if they both are the same the difference becomes zero and hence the displacement.

Displacement = final point - initial point

(both are same)

= same - same

= 0

A line passes through the point (-9,-4) and has a slope of -2/3 . write an equation in slope intercept form for this line

Answers

Answer:

[tex]y=-0.667x+-10[/tex]

Step-by-step explanation:

Given the following question:

Point A = (-9, -4), (x1, y1)
Point B = (-6, -6), (x2, y2)

[tex]m=\frac{y2-y1}{x2-x1}[/tex]
[tex]m=\frac{-6--4}{-6--9} =\frac{-2}{3}[/tex]
[tex]m=\frac{-2}{3}[/tex]

Write in slope intercept form:

[tex]y=mx+b[/tex]
[tex]m=\frac{-2}{3}=-2\div3=-0.667[/tex]
[tex]y=-4[/tex]
[tex]x=-9[/tex]
[tex]-4=-0.667\times-9+b[/tex]
[tex]-0.667\times-9=6[/tex]
[tex]b=-10[/tex]
[tex]y=-0.667x+-10[/tex]

Hope this helps.

A rational number between 11 and 12

Answers

Answer:

it would be 23/2

Step-by-step explanation:

Answer:

11.5

Step-by-step explanation:

A rational number is one that does not repeat.

TOSSING A NUMBER cube numbered from 1 to 6 and getting and even number that is greater that or equal to 2

Answers

Answer:

the probability is 3/5

Step-by-step explanation:

you have the numbers 2, 4, 6

and the numbers 3, 5

the 1 doesn't count, the question says numbers greater than or equal to 2

so, the remaining numbers add up to 3/5

what is the slope of the line???

Answers

Answer:

slope: 2 as we see, with every increase in x, y increase twice the more.

Step-by-step explanation:

we can can see the y-intercept at 1.so equation: y = 2x + 1

The slope of the linear graph in the question obtained using the ratio of the rise and run of the line is 2.

Recall :

Slope = Rise / Run

From the graph :

Rise = y2 - y1 = 5 - (-1) = 5 + 1 = 6

Run = x2 - x1 = 2 - (-1) = 2 + 1 = 3

The slope of the graph can be expressed thus :

Slope = Rise / Run = 6 /3 = 2

Therefore, the slope of the line in the graph attached is 2

if the average speed is 2.6km per hour and distance is 55km.What is the time?​

Answers

Answer:

21.15 hrs

Step-by-step explanation:

I divided 55 by 2.6 to get the 21.15.

Have a good day!

(3.4 x 10^-15) +(8.1 x 10^-14) help please, show work thank you

Answers

Answer:

see below

Step-by-step explanation:

1) Use Negative Power Rule: [tex]x^{-a} =\frac{1}{x^{a} }[/tex].

[tex]3.4x*\frac{1}{10^{15} } +8.1*x*10^{-14}[/tex]

2) Use Negative Power Rule: [tex]x^{-a} =\frac{1}{x^{a} }[/tex].

[tex]3.4x*\frac{1}{10^{15} } +8.1*x*\frac{1}{10^{14} }[/tex]

3) Use this rule: [tex]\frac{a}{b} *\frac{c}{d} =\frac{ac}{bd} .[/tex]

[tex]\frac{3.4x*1}{10^{15} }+8.1*x*\frac{1}{10^{14} }[/tex]

4) Simplify [tex]3.4x*1[/tex] to [tex](3.4)x[/tex].

[tex]\frac{3.4x}{10^{15} } +8.1*x*\frac{1}{10^{14} } }[/tex]

5) Use this rule: [tex]\frac{a}{b} *\frac{c}{d} =\frac{ac}{bd} .[/tex]

[tex]\frac{3.4x}{10^{15} } +\frac{8.1*x*1}{10^{14} }[/tex]

6) Simplify [tex]8.1*x*1[/tex] to [tex]8.1(x)[/tex].

[tex]\frac{3.4x}{10^{15} } *\frac{8.1*x}{10^{14} }[/tex]

I need help with these inequalities

Answers

⬇️(WORK SHOWN BELOW)⬇️

IM MARKING BRAINLEIST SO PLS BE QUICK IS DUE IN MINS

Answers

Answer:

x^2y−7xy+10xy^2

Step-by-step explanation:

(the first y isn't up but I tried)

anyways, hope this helped! :)

Answer:

[tex]4x^2y-7xy+10xy^2[/tex]

Step-by-step explanation:

We have [tex]\left(6x^2y-8xy+7xy^2\right)+\left(3xy^2-2x^2y+xy\right)[/tex] and need to add them together.

Though complicated at first, we can simplify by taking out the parenthesis and making this whole question into one equation.

[tex]\left6x^2y-8xy+7xy^2\right+\left3xy^2-2x^2y+xy\right[/tex]

Now combine like terms, meaning you can only add the terms that have the same ending, in math, you cannot add numbers that have different exponents or variables.

Therefore:

[tex]\left6x^2y-8xy+7xy^2\right+\left3xy^2-2x^2y+xy\right[/tex]

[tex]6x^2y-2x^2y-8xy+xy+7xy^2+3xy^2[/tex]

[tex]4x^2y-7xy+10xy^2[/tex]

2) Choose the best answer.

Find the volume of this terrarium. You may use a calculator to find the answer.


l = 5 m, w = 1 m, h = 3 m

A. 30 m2
B. 15 m3
C. 5 m2
D. 7.5 m3
E. 9 m3
p
Pelz I really really need help:(

Answers

Answer:

  B. 15 m^3

Step-by-step explanation:

The volume of a rectangular prism is the product ...

  V = lwh

For the given values of l, w, h, the volume is ...

  V = (5 m)(1 m)(3 m) = 15 m^3

when a number is increased by 9.5% the result is 58 what is the original number to the nearest tenth?

Answers

Answer:

53 i think

Step-by-step explanation:

help me with angle sum theorem please

Answers

Angle x must be 80° because 180°-100°= 80°
Sum of triangles Angela are 180°
So y=180°-80°-45°
Y=55°

Answer:

y = 55°

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

100° is an exterior angle of the triangle , then

y + 45° = 100° ( subtract 45° from both sides )

y = 55°

3 rhombi are connected at a point, side by side. All sides are congruent. Juan is making a model out of rhombi. Each rhombus will be connected to the one before it. Each rhombus will be 6 inches tall and 4 inches wide. How much paper does he need for each rhombus? square inches If his wall is 11 feet long, how much paper does he use? square inches.

Answers

Rhombus has all sides equal. The total amount of paper that will be needed to cover the wall is 396 in².

Given to us

Each rhombus will be 6 inches tall and 4 inches wide.

A.)

The area of each rhombus can be found using the formula,

[tex]Area = \dfrac{1}{2} \times d_1 \times d_2[/tex]

We know that diagonals of the rhombus are of length 6 in and 4 in. therefore,

[tex]Area = \dfrac{1}{2} \times 6 \times 4\\\\Area = 12\ in^2[/tex]

Hence, the area of the single rhombus is 12 in².

We know that the wall is 11 feet long, also, 1 foot = 12 inches, therefore,

11 feet = 132 in.

Now, since the wall is 132 in long and the width of the rhombus is 4 in, therefore, the number of rhombi that will be needed,

[tex]\dfrac{132}{4} =33[/tex]

Hence, the number of rhombi that will be needed is 33.

We know the area of each paper rhombus, also, we know the number of rhombi that will be needed. Therefore,

[tex]33 \times 12 = 396\ in^2[/tex]

Hence, the total amount of paper that will be needed to cover the wall is 396 in².

Learn more about Rhombus:

https://brainly.com/question/14462098

Answer:

3 rhombi are connected at a point, side by side. All sides are congruent.

Juan is making a model out of rhombi. Each rhombus will be connected to the one before it. Each rhombus will be 6 inches tall and 4 inches wide.

How much paper does he need for each rhombus?

✔ 12

square inches

If his wall is 11 feet long, how much paper does he use?

✔ 396

square inches

Step-by-step explanation:

egd

Laurie is trying to stay within 10 feet of her current diving depth of -30 feet (with regard to sea level) so that the light
is still good but she can be close to the sea life during her scuba dive. Which two equations can be used to find the
minimum and maximum depths Laurie wants to stay between?
-30 - x = 10 and -30 - x = -10
-30 + x = 10 and -30 + x = -10
x + 10 = 30 and x + 10 = -30
O X - 10 - 30 and x - 10 = -30

Answers

Answer:

I believe it's the 1st one.

HOPE IT HELPS! BE SAFE :3

Answer:

A

Step-by-step explanation:

What is the volume of the sphere in cubic centimeters?

Possible answers:

A. 201

B. Not enough information is given to calculate this volume

C. 1608

D. 2144

Answers

Answer:

D. 2144.6

Step-by-step explanation:

volume of a sphere is 4/3 * pi * r^3

we've been given the value of our radius as 8 and also the value for pi is 3.142 so in you solve using the formula you get 2144

r=8m

[tex]\\ \rm\Rrightarrow V=4/3\pi r^3[/tex]

[tex]\\ \rm\Rrightarrow V=4/3\pi (8)^3[/tex]

[tex]\\ \rm\Rrightarrow V=4/3\pi 512[/tex]

[tex]\\ \rm\Rrightarrow V=170.6(4)\pi[/tex]

[tex]\\ \rm\Rrightarrow V=682.4cm^3[/tex]

If there are 32 boys and 8 girls in a room, fill out all of the possible ratios of boys to girls that could be made.

Answers

Answer:

32 : 8

8 : 2

4 : 1

Step-by-step explanation:

32 : 8

8 : 2 (32/4 = 8, 8/4 = 2)

4 : 1 (32/8 = 4, 8/8 = 1)

Hope this helps!

A tray of cake samples contains a variety of flavors.

vanilla 25
strawberry 1
lemon 2
red velvet 3
chocolate 2

What is the probability that a randomly selected piece of cake will be red velvet?

Write your answer as a fraction or whole number.

Answers

Answer:  1/11

Step-by-step explanation:

The probability that the selected piece will be red velvet is equal to the amount of red velvet cake divided by the total amount of cake.

Therefore, it would be 3/(25+1+2+3+2)

= 3/33

= 1/11 when simplified

Is (-3-2c)/(-3) the same as (2c+3)/(3)??
(I believe they are the same, but just checking.)

Answers

Answer:

Yes, they're the same.

Step-by-step explanation:

-3-2c can be re-written as -1(2c+3) and -3 can be re-written as -1(3). So you can rewrite the fraction as -1(2c+3)/-1(3). The -1's go away and the new fraction is (2c+3)/3.

PLS HELP 30 POINTS
Find the area of the composite figure.

Answers

Answer:

104 m²

Step-by-step explanation:

From inspection of the diagram, we can see that the composite figure is made up of a triangle and a rectangle.

Triangle

If you turn the figure 90° clockwise, you will see that the base of the triangle = 8m and the height of the triangle = 6m.

Area of a triangle = 1/2 x base x height

area of the triangle = 1/2 x 8 x 6 = 24 m²

Rectangle

From inspection, the length of the rectangle = 10m and the width = 8m

Area of a rectangle = length x width

area of the rectangle = 10 x 8 = 80 m²

Composite figure area

Therefore the total area of the figure = area of triangle + area of rectangle

total area = 24 + 80 = 104 m²

Answer:

104 m^2

Step-by-step explanation:

See attached image.

PLSSS HELP IF YOU TURLY KNOW THISS

Answers

Answer:

14

Step-by-step explanation:

8×7=56

4×?=?

?= 56÷4

?= 14

Answer:

Divide the numerator by the denominator.

Step-by-step explanation:

mia estimated 5/8 + 1/9 by replacing 5/8 with 1 and 1/9 with 0. her estimated sum was 1+0=1. explain why mias estimate is not accurate

Answers

Answer/Step-by-step explanation:

5/8 is not close to 1 in this context. If you want to be accurate, don't estimate. Add the 2 numbers.

Brainliest?!

the sum of ten times a number and 12

Answers

Answer:it’s 10x + 12

Step-by-step explanation:

your welcome

The sum of ten times a number and 12 can be written as 10x + 12.

What is an expression?

An expression contains one or more terms with addition, subtraction, multiplication, and division.

We always combine the like terms in an expression when we simplify.

We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.

Example:

1 + 3x + 4y = 7 is an expression.com

3 + 4 is an expression.

2 x 4 + 6 x 7 – 9 is an expression.

33 + 77 – 88 is an expression.

We have,

The expression "ten times a number" can be represented as 10x, where x is the number.

So, "the sum of ten times a number and 12" can be written as:

10x + 12

This expression represents a mathematical operation where 10 times the number is added to 12.

Thus,

The sum of ten times a number and 12 can be written as 10x + 12.

Learn more about expressions here:

https://brainly.com/question/3118662

#SPJ2

find the radius of a cylinder with a volume 686mm2 and a height of 14mm​

Answers

Answer:

r = 3.95 mm (nearest hundredth)

Step-by-step explanation:

[tex]\textsf{volume of a cylinder} = \pi r^2h[/tex]

(where r = radius and h = height)

Given, volume = 686 mm² and height = 14 mm:

[tex]686=\pi r^2\times14[/tex]

[tex]\implies\pi r^2=686 \div14=49[/tex]

[tex]\implies r^2=49 \div \pi[/tex]

[tex]\implies r=\sqrt{49 \div \pi }=3.949327085...[/tex]

[tex]\implies r=3.95 \ \textsf{mm}[/tex]

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