Please Help!!!!!! You have twice as many nickels as pennies. you have $1.10. How many of each coin do you have? Solve each problem using a system of equations...

Answers

Answer 1
19 Nickels and 15 pennies

Related Questions

Gabriel has 15 ⅝ pounds of clay. He will use 7/10 pound to make each bowl. After making 8 bowls, Gabriel wonders how many more bowls he can make. How many more bowls can how make?

Answers

Answer:

14

Step-by-step explanation:

The total amount of bowls he can make given the pounds of clay and the pound needed to make a bowl = [tex]15\frac{5}{8}[/tex] ÷ [tex]\frac{7}{10}[/tex]

= [tex]\frac{125}{8}[/tex] ÷ [tex]\frac{7}{10}[/tex]

= [tex]\frac{125}{8}[/tex] ×[tex]\frac{10}{7}[/tex] = 22.32

Number of bowls he can more more = total amount of bowls that can be made - number of bowls already made

22.32 - 8 = 14.32 bowls

Rounding off to the nearest whole number gives 14

explain the error .
help me plll​

Answers

Answer:

Correct solution in steps

5 - 2(a + 7) + 10a =           The first operation is parenthesis5 - 2(a) - 2(7) + 10a =        The second operation is simplification5 - 2a - 14 + 10a =             Next operation is collecting like terms(10a - 2a) + (5 - 14) =         Next operation is simplification8a + (-9) =                        8a - 9

The error in the given solution was the first step: (5 - 2)

10.
Find the slope of the line.

A. 3

B. [tex]-\frac{1}{3}[/tex]

C. –3

D. [tex]\frac{1}{3}[/tex]

Answers

Answer:

The slope of the line 3.

Step-by-step explanation:

The line is going through 3.  Although it is not -3, because if the line is sloping upward from left to right, then the slope is positive (+). If the line is sloping downward from left to right, the slope is negative (-).

Answer:    The answer is either letter A or letter D

0

Hint 1: Find the direction cosines of AB and BC. Then take their dot product. This will give the cosine of the angle between AB and BC.

Hint 2: The Direction Cosines of PQ, P(x1,y1,z1) and Q(x2,y2,z2), are (±x2−x1(x2−x1)2+(y2−y1)2+(z2−z1)2√,±y2−y1(x2−x1)2+(y2−y1)2+(z2−z1)2√,±z2−z1(x2−x1)2+(y2−y1)2+(z2−z1)2√)

Edit: The Dot Product works iff the lines intersect.

B is the intersect point , doesn't matter if it's in 2D or 3D – Ali Apr 28 '18 at 5:52

0

Lines in dimension three do not have to intersect. We find their direction vectors to see if they are parallel.

Note that

AB→=<x2−x1,y2−y1,z2−z1>

and

BC→=<x3−x2,y3−y2,z3−z2>

These vectors are the direction vectors are your lines.

The dot product

AB→.BC→

along with the norms of these vectors determine the angle between the lines if they intersect at all.

cosθ=AB→.BC→||AB||.||BC||

Step-by-step explanation:    This is for the picture

Center:  (0, 0)

Width:  10

Angle:  0 rad

Height:  6.8

Opacity:  1

find the value for m
-10 + 59 = 5m = 7 + 3m

Answers

-10+59=5m=7+3m

49=5m=7+3m

49-7=5m-3m

m=42/2

m=21

Answer:

21

Step-by-step explanation:

-10+59 = 5m = 7 + 3m

49 = 5m = 7 + 3m

49 - 7 = 5m - 3m

42 = 2m

42/2 = m

m= 21

To purchase $14,500 worth of restaurant equipment for his business, Hans made a down payment of $1800 and took out a business loan for the rest. After years of paying monthly payments of $562.88. , he finally paid off the loan.

Answers

Answer:

hello your question is incomplete below is the complete question

To purchase $14,500 worth of restaurant equipment for his business, Hans made a down payment of $1800 and took out a business loan for the rest. After 2 years of paying monthly payments of $562.88. , he finally paid off the loan. What was the total amount  Dean ended up paying for the equipment ( including the down payment and monthly payments )

answer: $15309.12

Step-by-step explanation:

Initial cost of equipment = $14500

Down payment = $1800

cost of equipment = 14500 - 1800 = $12700

Monthly payment = $562.88

Therefore payment made after 2 years = ( 562.88 * 24 ) = $13509.12

Total amount paid by Dean for the equipment

= down payment + monthly payments

= $1800 + $13509.12

= $15309.12

I need help with this question....

Solve the variable for 2e=6.8

Answers

Answer:

e=3.4

Step-by-step explanation:

Your equation is 2e=6.8

All you have to do is divide both sides by 2 and get that:

e=3.4

The solution for 2e=6.8 is 3.4

What is equation?

Equation, statement of equality between two expressions consisting of variables and/or numbers.

Given equation is: 2e=6.8

Divide both by 2, to make the coefficient of e 1.

2e/2=6.8/2

e=3.4

Hence, the solution of the equation is 3.4.

Learn more about equation here:

https://brainly.com/question/10413253

#SPJ2

Write and solve an equation to answer the question. 14 is what percent of 70?

Answers

Answer:

20%

Step-by-step explanation:

An equation is 14=x/100*70 or 14=(x%)*70, either one works

solve for x:

14=x/100*7014/70=x/100 (Divide each side by 70)1/5=x/100 (Simplify 14/70)100/5=x (Multiply each side by 100 to isolate x)x=20 (Simplify 100/5)20% (Rewrite as a percent)

hope this helps!!

find the slope and y-intercepts of the line below & write the equation of the line.

Answers

Answer:

m=3     b=-2       y=3x-2

Step-by-step explanation:

The slope/m is 3 because the rise is 3 and the run is 1. Rise over run and you get 3/1 also known as 3.

The y-intercept point/b is -2 because you can look at the graph and the point where the line touches the y-axis is the y-intercept/b

The equation is written in the format of y=mx+b so y and then m is the slope then add x after the slope, then write the y intercept.

Help me with this!! Will mark Brainliest!!!

Answers

Answer:NO!!

Step-by-step explanation:

RS distance of 2 while TU distance of 1

Help fast Help fast Help fast Help fast Help fast Help fast Help fast Help fast Help fast Help fast Help fast Help fast

Help fast Help fast Help fast Help fast Help fast Help fast Help fast Help fast Help fast Help fast Help fast Help fast Help fast Help fast Help fast Help fast Help fast Help fast Help fast Help fast Help fast Help fast Help fast Help fast

Answers

Answer:

- [tex]3x^{2}[/tex]  - 40x - 100

Step-by-step explanation:

f (x ) . g ( x )

( 3x - 10 ) ( 10 - x )

30x - [tex]3x^{2}[/tex]  - 100 + 10x

Simplify the like terms.

40x - 100 -  [tex]3x^{2}[/tex]  

= - [tex]3x^{2}[/tex]  - 40x - 100

Answer:

your answer is D                                                                        

Someone please help me with this question

Answers

you can use pythagorean theorem and square 1.5 and 6 and those added together is the hypotenuse (the slope) squared. the answer is approximately 6.2

Kameron grandmother gives him 20 dollors for his birthday to put into his saving account , and he also saves his weekly allowance of 10 dollors

Answers

Answer:

y=10w+20

or 20+10w=y

Step-by-step explanation:

just a mixture of those

HELP PLSSS ILL MARK YOU BRAINLIIEST !!!!!!!!!!

Answers

Answer:

5.6

Step-by-step explanation:

What is the area of a rectangle with vertices (2, 3), (9, 3), (9, Negative 2), and (2, Negative 2)?

---square units

Answers

I would believe it is 35 units

Answer:

35 units

Step-by-step explanation:

edg

How many different 5-digit PIN codes are there that only include the digits 7, 2, 4, 6, 9 and 3?

Answers

Answer:

720

Step-by-step explanation:

6*5*4*3*2=720

What is the measure of an angle that is the complement of angle M?
A.
10°
B.
60°
C.
90°
D.
None of the above
E.
45°

Answers

Answer:

the measure of an angle that is the complement of angle M=90-75=15

non of the above

NEED HELP ASAP WILL GIVE BRAINLY

Answers

Answer:16.76 is your answer hope I helped

Answer:

Answer B. 150.8

There are 568 kiloliters of soup in a pot. How many liters of liquid did the chef use for this recipe?

.568 L

5.68 L

568,000 L

5,680 L
HELLLP

Answers

Answer:

568,000L

Step-by-step explanation:

1 Kiloliter = 1,000 Liters

568 x 1,000 = 568,000

UGRENT PLEASE RESPOND QUICKLY

Answers

You got this what the other guys says is right

You are organizing a school banquet. You spend $82 on decorations. Dinner will cost $13 for each person that attends. In the equation y=13x+82, y is the total cost of the banquet for x people. Complete the solution (69,?) to find the cost for 69 people.

Answers

Answer:

(69,979)

Step-by-step explanation:

In the coordinates, x is represented as 69. We can now insert this into the equation.

y = 13x + 82

Now to insert x.

y = 13(69) + 82

Now we can multiply 13 by 69.

13*69 = 897

Now fix the equation.

y = 897 + 82

Now add to get our y.

897 + 82 = 979

Substitute into the equation.

y = 979

And there is our answer. We now need to put this into the coordinates.

And we get our final answer of (69,979).

Hope this helps. Have a nice day.

HELP WILL MARK BRAINLIEST IF GOTTEN RIGHT PLS DONT GET WRONG IF U DONT KNOW

Answers

Answer:

C) x = 9

Step-by-step explanation:

6/4 = x/6

4x = 36

x = 9

Factor completely: 2x^3-12x^2+18x

Answers

Answer:

2x(x - 3)²

Step-by-step explanation:

We can simplify this a lot by first factoring 2x out of each term:

2x³ - 12x² + 18x

= 2x(x² - 6 + 9)

We can then factor the trinomial fairly easily, as it's a perfect square:

= 2x(x - 3)²

Grant walks 4/5 of a mile in 1/4 hour. What is his ratio of miles to hours in simplest form?

Answers

Answer:

You can always ask the tutor they give the correct answer :))


The sides of a rectangle are in the ratio of 6:5. The perimeter is
132cm. What is the length of the longest side?
Help please.

Answers

Answer: 36

Explanation:
The lengths of the rectangle will be 6x and 5x.
So the perimeter is 6x+5x+5x+6x which equals 22x
132/22x so x=6
So 6 times 6 =36.

Jason bought 3 shirts for $24.99 each . How much did he spend on shirts

Answers

Answer:

he spent $8.33 on each shirt

last year, 15 dogs entered the local dog show. this year, 27 entered. what is the percent increase?​

Answers

Answer:

80%

Step-by-step explanation:

2{x+8}+5{x-1}=60 answer

Answers

Answer:

x=7

Step-by-step explanation:

2{x+8}+5{x-1}=60

Distribute

2x+16+5x-5 = 60

Combine like terms

7x +11 = 60

Subtract 11 from each side

7x+11-11 = 60-11

7x = 49

Divide each side by 7

7x/7 = 49/7

x = 7

solve the problem:

x + 4 = 10

Answers

Answer: 6

Step-by-step explanation: The way to solve this problme is to move backwards. Instead of adding you would subtract the number after the equal sign and whatever number before. It's kind of like a fact family!

10-4=6 so the answer is 6.

I hope this help you out, have an awesome day! :)

is there an error in the work and is the answer extraneous? if so why?​

Answers

Answer:

x = 4

Step-by-step explanation:

log₃[1 + log₃(2ˣ - 7)] = 1

log₃[1 + log₃(2ˣ - 7)] = log₃(3)

1 + log₃(2ˣ - 7) = 3

log₃(2ˣ - 7) = 2

log₃(2ˣ - 7) = log₃(3)²

2ˣ - 7 = 9

2ˣ = 9 + 7

2ˣ = 16

2ˣ = 2⁴

x = 4

By putting x = 4 in the original equation,

log₃[1 + log₃(2⁴ - 7)] = 1

log₃[1 + log₃(16 - 7)] = 1

log₃[1 + log₃(9)] = 1

log₃[1 + log₃(3)²] = 1

log₃[1 + 2] = 1

log₃[3] = 1

1 = 1

Therefore, x = 4 is not the extraneous solution and there is no error in your answer.

When rounding to the nearest hundred thousand what is the greatest whole number that rounds to 400,000

Answers

Answer:

449,999

Step-by-step explanation:

Given that:

Greatest whole number that round to 400,000 when rounding to the nearest hundred thousand :

To obtain the greatest whole number which rounds to 400,000, the whole number is greater Tha 400,000 and its 10 thousand digit in the number or value to be rounded must be lesser than 5.

The value would be 449,999 ; here z the 10 thousand value which is 4 is rounded to zero since it is not up to 5 and the subsequent digits also rounded to 0 to give ;

400,000 (nearest hundred thousand).

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