James has $10 in 5-cent and 10-cent coins in his change jar and counts 157 coins in total. How many 10-cent coins does he have?

Show working out!!

Answers

Answer 1

Answer:

10 cent coins = 43

Step-by-step explanation:

x = 10 cent coins

y = 5 cent coins

x + y = 157, then y = 157 - x

$10 = 1000 cents

0.10x + 0.05y =1000

substitute for y:

0.10x + 0.05(157 - x) = 1000

0.10x + 7.85 - 0.05x = 1000

combine like terms:

0.05x = 2.15

x = 43

y = 114


Related Questions

3x+9=15
Anybody know the answer to thisss???

Answers

Answer:

[tex]x = 2[/tex]

Step-by-step explanation:

Move all terms that don't contain [tex]x[/tex] to the right side and solve.

Answer:

refer to the attachment

Step-by-step explanation:

hence x is 2

I need help with this asap. thank u

Answers

Answer:

1/3

Step-by-step explanation:

1. When we divide any x-input by the y-input, we get 3. This is the same as multiplying the x-input by 1/3 to get the y-input. Let's see if it works!

[tex]3 * \frac{1}{3} = \frac{3}{3} = 1[/tex] [tex]6 * \frac{1}{3} = \frac{6}{3} = 2[/tex] [tex]12 * \frac{1}{3}= \frac{12}{3}=4[/tex] [tex]15*\frac{1}{3}=\frac{15}{3} =5[/tex]

2. Great! All our x-inputs and y-inputs match up, meaning the constant of proportionality, k, is 1/3.

Which graph represents the equation y=3/4x−3 ?

Answers

Answer:

the first one

Step-by-step explanation:

please give me brainless

The length of a rectangle is 5 in longer than its width.
If the perimeter of the rectangle is 74 in, find its length and width.

Answers

Answer:

Length = 21

Width = 16

Step-by-step explanation:

We know that the formula for perimeter is:

P=2W+2L

And we also know that:

L=W+5

So then we put all that we know in the formula:

74=2W+2(W+5)

Now we expand the brackets and do some algebra:

74=4W+10 (-10)

64=4W (÷4)

16=W

Now that we know the width we can pop that into the length equation:

L=16+5

L=21

What is -2d-2 < 3d+8

Answers

Answer:

d > -2

Step-by-step explanation:

-2d-2 < 3d+8

3d+8 > -2d-2

3d + 2d > -2 -8

5d > -10

d > -2

Feel free to mark this as brainliest! :D

Tim wants to prove that BA≅BC by proving △BXA≅△BXC
. He knows that: BX is the perpendicular bisector of segment AC, and therefore
any point on BX is equidistanct from point A and point C.
Why is
△BXA≅△BXC?

B.
Side-Side-Side (SSS) Theorem

C.
Angle-Side-Angle (ASA) Theorem

D.
Angle-Angle-Side (AAS) Theorem

E.
Hypotenuse Leg Theorem

Answers

Answer:

hh

Step-by-step explanation:

Please help me solve this please

Answers

Answer: No solution

Explanation:

5x + 3x = 2(4x - 5) - 2

8x = 8x - 10 - 2

0 = -12 (False Statement)

someone pls help me with this

Answers

For c Judy is on time

Find the graphed solution to the inequality. 3(x-9) < -18

Answers

Answer:

[tex]x<3[/tex]

Step-by-step explanation:

[tex]3\left(x-9\right)<-18[/tex]

Divide both sides by 3

[tex]\frac{3\left(x-9\right)}{3}<\frac{-18}{3}[/tex]

[tex]x-9<-6[/tex]

Add -9 to both sides:

[tex]x-9+9<-6+9[/tex]

[tex]x<3[/tex]

_______________________

For BRAINLY please help fast I have a D in the class haha

Answers

Answer:

yes

Step-by-step explanation:

it is possible to be an isoscelize triangle

pls mark brainliest

Answer:

I think yes

Step-by-step explanation:

because the two sides that are bigger can be the ones with the lenght of 8

and the one in the bottom can be the one with the lenght 1

hope this helps <33

have a nice day :)

Show a different way to solve 25 x 28

Answers

Answer:

700=25x28

Step-by-step explanation:

The product of the two given numbers is 700.

The given expression is 25 × 28.

We need to find the product of these two numbers in different ways.

What is the distributive property of multiplication?

The distributive property of multiplication over addition states that multiplying the sum of two or more addends by a number gives the same result as multiplying each addend individually by the number and then adding the products together. This property of multiplication over addition is used when we need to multiply a number by a sum.

Now, direct multiplication 25 × 28=700

Using distributive property we get 25 × (20+8)

=25 × 20 + 25 × 8

=500 + 200

=700

Therefore, the product of two given numbers is 700.

To learn more about the distributive property visit:

https://brainly.com/question/13130806.

#SPJ2

i need help with this math problem ( 100)

what is the square root for 25?

Answers

Answer:

± 5

Step-by-step explanation:

[tex]\sqrt{25}[/tex] = ± 5 , that is

+ 5 or - 5 , since

+ 5 × + 5 = 25 and - 5 × - 5 = 25

112°
4)
53°
2f+ 1°
f
=

Can someone link a video or tell me how to do this?

Answers

This is easy:
2f+1 + 53 =112
Minus 54 from both sides
2f = 58
Divide 2 from both sides
F=29
Just remember the exterior angle is the sum of the 2 interior angles.

Answer:

f = 29

Step-by-step explanation:

First look at the angle inside the triangle that has no marker.  You can determine this angle using the angle on the opposite side (112).

A straight line will equal 180.  So this angle would equal 180 - 112 or 68.

Now you know two of the triangles angles....  53 and 68.

A triangle's inside angles always add up to 180 degrees.

53 + 68 = 121

The angle that is 2f + 1 must equal 180 - 121 which is 59 degrees.

2f + 1 = 59

2f = 58

f = 29

The three angles inside the triangle are 53, 68 and 59

Write the ratio as a fraction in simplest form, with whole numbers in the numerator and denominator 12kg:16kg

Answers

Answer:

3/4

Step-by-step explanation:

12kg/16kg= 6/8= 3/4

Hope this helps!

Pls mark brainliest if correct:)

What is the area of the following circle?
Either enter an exact answer in terms of π 3.14 π and enter your answer as a decimal.

Answers

The area of the circle is 153.86

The formula is A = π r²

Mometrix Media - flashcardsecrets.com/workkeys
WorkKeys Math
© Mon
Workk
Abby read 25% of a book on Monday and an
additional 50% on Tuesday. On Wednesday, she read
25% of a second book. What fraction of the first book
has she read?
A. 1
B. 1/2
C. 1/4
D. 2/3
E. 3/4
Jun
na
po
sh
А
E
What’s the

Answers

she has read 3/4 of the book, 75% = 75/100 which simplified = 3/4

Ummm how do you do this two questions?

Answers

Answer:

Here are the formulae you need. Just plug in the values you have and you will get your answers.

Area of a triangle: 1/2*base*height

Volume of a rectangular prism: length*width*height

Volume of a cylinder: pi*r^2*height

Step-by-step explanation:

If one angle is 25 and another is 105 what is x

Answers

Answer choices 1, 2, and 5 are correct for this problem.

Answer:

choices 1, 2, and 5 are correct for this problem.

Step-by-step explanation:

HEEEEEEEEELP PLZZZZZZZZZZ

Answers

Answer:

Step-by-step explanation:

(1). ( - 3, - 1 )

(2). ( - 1, 3 )

(3). ( 2, 0 )

(4). ( 1, 0 )

Algebra 2 Piece-wise functions!!

Answers

It's A.

1. The closed circle connects to the x≥1 function, so that rules out B and C.

2. The x≥1 piece has a positive slope on the graph, so that rules out D.

A bike shop sells bikes for $155 each and scooters for $65 each. Write an equation to represent the cost of 2 scooters and x number of bikes.

Someone help me please.​

Answers

Answer:

c

Step-by-step explanation:

I hope this helps

|y+6|=2.Consider the equation

Answers

Answer:

-4

Step-by-step explanation:

The answer is Y=-4, -8

A photocopier can print 12 copies in 48 seconds. If the photocopier always copies at the same rate, how
long would it take to make 5 copies?

Answers

48 seconds / 12 copies = 4 seconds per copy

4 seconds per copy x 5 copies = 20 seconds

Answer: 20 seconds

24 minus what divided by 2 gives you 9
HURRY

Answers

Answer: 6

Step-by-step explanation:

(24 - x)/2 = 9

multiply both sides by 2

24 - x = 18

subtract both sides by 24

-x = -6

multiply both sides by negative 1

x = 6

please what's -4/5 - -3/5

Answers

Step-by-step explanation:

-4/5 - -3/5

-4/5 + 3/5

(-4+3)/5

=-1/5

the answer for -4/5 - -3/5 is  −1/5

What is the following product?
[tex] \sqrt[4]{7} \times \sqrt[4]{7} \times \sqrt[4]{7} \times \sqrt[4]{7} [/tex]
a.4(
[tex] \sqrt[4]{7} [/tex]
b. 4
[tex] \sqrt{7} [/tex]
c.7^4
d.7​

Answers

Answer:

D

Step-by-step explanation:

[tex]\sqrt[4]{(7)(7)(7)(7)}[/tex] = [tex]\sqrt[4]{2401}[/tex] = 7

You can just multiply the radicands together since they're all 4th roots.

The expression 4(3x + 7x2 – 7x + 7) – (7x2 + 7x – 7) equals
23 +
x ² +
+

Answers

Answer:

wonk

Step-by-step explanation:

13 add (-20) answer plz

Answers

Step-by-step explanation:

13 + (-20) = 13 - 20 = -7

HOPE IT HELPS

Answer:

-7

Step-by-step explanation:

I'd recommend at least trying the problem before asking for help. This is a simple subtraction/addition problem.

13 add (-20) is 13 + (-20), which is 13 - 20.

13-20 = -7

URGENT HELP PLS I WILL MARK BRAINLIEST!!!!
Ellie is cutting out a rectangular board to construct a bookshelf.
The board is to have a perimeter of 84 inches, and its length is to be 3 inches shorter than double the width.

Answers

Answer:

The length of the board is 27 inches

[tex]\sf 500+600+500[/tex]

Answers

Answer:

1,600

Step-by-step explanation:

pls brainliest plss

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