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

I need help with my homework

Answers

Interesting question

Evaluate the function for an input value of 3. f(x)= −4x 2 −3x−5

Answers

Answer:

- 50

Step-by-step explanation:

x = 3

f ( x ) = - 4x^2 - 3x - 5

f ( 3 )

= - 4 ( 3 )^2 - 3 ( 3 ) - 5

= - 4 ( 9 ) - 3 ( 3 ) - 5

= - 36 - 9 - 5

= - 50

5 weeks 4 days -3 weeks 6 days. _____________

Answers

Answer:

1 week 8 days

that's the pattern

subtract 2 weeks add 2 days

brainliest would be nice

have a nice day

Step-by-step explanation:

Answer:

8 weeks

Step-by-step explanation:

At the beginning of the week, a puppy weighed 5 1/4 pound. During the week the puppy gained another 8 pounds.

how much does the puppy weigh, in pounds, at the end of the week​

Answers

The answer would be 13.25 :)).

Answer:

5 3/4

Step-by-step explanation:

PLEAESE HELP ME I WILL GIVE BRAINLYEST!!!
(01.04 MC)

What is the sign of the product (3)(−25)(7)(−24)? (10 points)

Group of answer choices

Positive, because the products (3)(−25) and (7)(−24) are positive, and the product of two positive numbers is positive

Negative, because the products (3)(−25) and (7)(−24) are positive, and the product of two positive numbers is negative

Negative, because the products (3)(−25) and (7)(−24) are negative, and the product of two negative numbers is negative

Positive, because the products (3)(−25) and (7)(−24) are negative, and the product of two negative numbers is positive

Answers

Answer:

Positive, because the products (3)(−25) and (7)(−24) are negative, and the product of two negative numbers is positive

(4.5)x = 26 pls help me with this it is multiplication equations

Answers

Answer:

x=5.7

Step-by-step explanation:

Answer:

x = 5.78

Step-by-step explanation:

(4.5)x = 26

4.5x = 26

x = 26/4.5

x = 5.78

Mahi has 31 rolls of string. Each roll holds 12 yards of string. How many feet of string does she have?

Answers

Answer:

1116ft of string, hope this helps !!

Step-by-step explanation:

(31 x 12) x 3 =

372 x 3 =

1,116

Can anyone explain how you graph things for example, like y=x-4 how would you graph that

Answers

Answer:

In basicallity if a question such as this pops up, the correct way to go would first be to graph this. y=x-4 would be equivalent to x=4.

My paper work is below:

y = x - 4

0 = x - 4

-x = -4

x = 4

Hope this helped..

what would I put to show my work?

Answers

Answer:

x = 23

Step-by-step explanation:

These are supplementary angles so the sum of those angles add up to 180:

3x + 16 + 5x - 20 = 180

8x - 4 = 180

8x = 180 + 4

8x = 184

x = 184/8

x = 23

Joe has seven boxes of markers
and each box has eight markers.
How many markers doe she have
altogether?

Answers

it’s will be 8 x 7 which is 56

Answer:

[tex]56[/tex]

Step-by-step explanation:

[tex]7[/tex]×[tex]8[/tex][tex]=56[/tex]

Please help, I don’t understand this

Answers

Answer:

same here

have a nice day

Sophie has 7 cookies she wants to share equally with ten friends at her party. Part A If she separates all of the cookies and gives each friend an equal amount, how much cookie will each friend receive? Part B If Sophie wanted to give each friend 1 1/2 cookies, how many more cookies would she need?

Answers

Answer:

Each friend gets 0.7 cookie

8 cookies

Step-by-step explanation:

A.

Number of cookies = 7

Number of friends = 10

how much cookie will each friend receive?

Number of cookie each friend get = number of cookies / number of friends

= 7/10

= 0.7 cookie

Each friend gets 0.7 cookie

B.

If each friend 1 1/2 cookies

how many more cookies would she need?

Total number of cookies needed = 1 1/2 × 10

= 3/2 × 10

= 30/2

= 15 cookies

She already has 7 cookies

Number of cookies needed more = 15 cookies - 7 cookies

= 8 cookies

can someone help me please? and if its okay can you show the step by step explanation.​

Answers

These are literal equations- that means you solve literally for the numbers.
1. t=d/r
2. m=e/c^2
3. C= -P/R
And so on... You just divide/subtract the letters to the other side

decide if these are equivalent ratios by simplifying. 12/27 and 20/36​

Answers

Answer:

they are not equivalent

Step-by-step explanation:

12/27 reduces to 4/9 if you divide by 3

20/36 reduces to 5/9 if you divide by 4

4/9 ≠ 5/9

Step-by-step explanation:

Get your answer by reducing them:

12/27=4/9 ( in the table of 3)

20/36=5/9 ( in the table of 4)

hope it helps

What is the area of a rectangular pool with dimensions of 12 feet by 9.5 feet? Show all of your steps and work.

Answers

Answer:

If referring to surface area, it would be equal to 114 ft²

Step-by-step explanation:

Area = BH or LW

Multiply the two dimensions given

12 * 9.5 = 114

114 square feet

The answer to my question is
For number 13. x^3+7x^2-9x-63
For number14. 18x (x-4)
BUT SOMEONE SHOW WORK PLS FOR BRAINLYY :)))

Answers

Answer:

each colour represents what i’m multiplying

Step-by-step explanation:

hope this helps

Please help.

For math class

Answers

Answer:

x = 30, z = 45, y = 105

Step-by-step explanation:

The lines are straight, so:

x = 30

z = 45

y = 180 - (45 + 30)

So there

I am a 2-digit number. If sum of my two digits is added to the product of my digits, it is me again. Can you find me?

Answers

Answer:

Step-by-step explanation:

Let “ab” represent the digits of the number.

a ≠ 0

Value of the number = 10a+b

a+b + ab = 10a + b

a + ab = 10a

ab = 9a

b = 9

“ab” = 19, 29, 39, 49, 59, 69, 79, 89, 99

Answer: 49

Step-by-step explanation:

4x9=36

4+9=13

36+13=49

Which is the equation in slope-intercept form for the line that passes through (-1,5) and is parallel to 3x + 2y = 4?
Answer asap please

Answers

Answer:

3.24

Step-by-step explanation:

According to the line plot what is the total amount of time spent studying by all students who studied 1/4 hour or 3/4 hour​

Answers

Answer:

2  3/4 hours

Step-by-step explanation:

We see from the figure that 2 students spent 1/4 hours and 3 students spent 3/4 hours.

So the total time spent is

2* (1/4) + 3(3/4) hours

= 1/2 + 9/4

=(2+9)/4  taking l.c.m

= 11/4

= 2 3/4 hours

The total time spent by 5 students on 1/4 hours and 3/4 hours is 2 and 3/4 hours.

Can you help please.....

Answers

Answer:

b, d, and e are the three statements that make the most sense to be true.

Step-by-step explanation:

tell me if this is wrong.

1/8 of a cup of cinnamon was sprinkle evenly over some pieces of toast. if 1/32 of a cup was sprinkled on each piece, how many pieces were sprinklered?

A) 4

B) 6

C) 7

D) 8

Answers

C because C is the right answer

Answer:

the answer is 4

Step-by-step explanation:

i took the test =p

which expression is equivalent to the problem shown?

Answers

B
............................

A large farm tractor costs $98,424, If a farmer makes 36 equal payments, how much Is each payment?

Answers

Answer:

Step-by-step explanation:

2,734 is your answer.

Please help me with this
What is m

Answers

The answer is letter A: 82

Find the value of x. Write your answer in simplest form.

Answers

Answer:

x = 9

Step-by-step explanation:

Using Pythagoras' identity in the right triangle

x² + x² = (9[tex]\sqrt{2}[/tex] )²

2x² = 162 ( divide both sides by 2 )

x² = 81 ( take the square root of both sides )

x = [tex]\sqrt{81}[/tex] = 9

A rental car agency charges $14 per day plus 12 cents per mile to rent a certain car. Another agency charges $19 per day plus 10 cents per mile to rent the same car. How many miles per day will have to be driven for the cost of a car from the first agency to equal the cost of a car from the second agency?

Answers

Answer: The correct answer is 250 miles per day. I just completed this question myself and I got it correct

Step-by-step explanation:

What is the value of the expression {(23+7^2)}{2^{2}}

Answers

I t's a nd ur behaving this way caz 27th to you mind if u can get 8826th to use it's

Answer:

288

Step-by-step explanation:

{(23 + 7^2)(2^2)

{(23+49)(4)}

(23 x 4) + (49 x 4)

92 + 196

288

What are the answers to these?

Answers

A=10
B=-12
C=3.6



I need to make the answer 20 letters so here’s a cookie

GUYS PLEASE ASAP I WILL FAIL IF U GUYS DONT ANSWER PLEASE

Answers

Answer: a square is both rectangle and quadrilateral.a trapezoid, rhombus and parallelogram is a quadrilateral. A parallelogram is also a rectangl.

Step-by-step explanation:

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