Do rozwiązania są następujące zadania tekstowe:
Luca ma kilka 10-centówek oraz kilka 5-centówek. Razem ma 40 monet, o wartości
3.15 Euro. Ile monet każdego rodzaju ma Luca?

Answers

Answer 1

d = liczba monet 10-centowych

p = liczba monet 5-centowych

Razem, Luca ma 40 monet:

d + p = 40

Jedna 10-centowa moneta ma wartość 10 centów, i jedna 5-centowa ma wartość 5 centów, więc

10d + 5p = 315

bo 3,15 euro = 315 centów.

Znajdź d i p :

(10d + 5p) - 5(d + p) = 315 - 5•40

5d = 115

d = 23

d + p = 40

23 + p = 40

p = 17

Answer 2
I am not sure I understand your question but it seems like someone else does.

Related Questions

Solve for the variable in the following proportion

m/1/3 = 10/1 2/3

50
2
5
3/5

please help?​

Answers

Answer:

the answer is 5

Step-by-step explanation:

Andy works at a grocery store. The manager of the store would like Andy to set up a display of apples. Part of the display will include bags of apples. If there are 39 pounds of apples in the back of the store, how many bags of apples can Andy make for the display? each bag has 1 1/2 pound

Answers

Answer:

Andy can make 26 bags for the display.

Step-by-step explanation:

Quantity of apples in the back of the store = 39 pounds

Quantity of apples in one bag = [tex]1\frac{1}{2}[/tex] pounds

Here,

[tex]1\frac{1}{2}=\frac{2(1)+1}{2}=\frac{3}{2}[/tex]

Number of bags = Quantity of apples in the back of the store / Quantity of apples in one bag

[tex]=\frac{39}{1\frac{1}{2} }=\frac{39}{\frac{3}{2} }=39(\frac{2}{3})=26[/tex]

So, Andy can make 26 bags for the display of apples.

Additive inverse of 0.25

Answers

Step-by-step explanation:

it's it's a photo hope this will help you

Which statement is not true

Answers

Answer: A



Step by step: not the same length

Jackie and Luke are working on a project for social studies.
They create a slide show with 250 slides. if they worked on it for 8 hours,

How many slide did they created per hour?​

Answers

Answer:

31.25 slides per hour.

Step-by-step explanation:

250 slides ÷ 8 hours = 31.25 slides per hour

You're welcome!

Answer:

You are trying to find how many slides they did per hour so the answer to that would be 31.25

Step-by-step explanation:

250 ÷ 8 = 31.25

The number 0.003 writte in scientific notation is 3x10^3. why is the exponent negative?

Answers

Answer:

Answer is the explanation below

Step-by-step explanation:

The exponent is negative because, as a positive exponent means to multiply, a negative exponent means to divide.

Given f (x)= 5 (2 - x), what is the value of f(-6)

Answers

Answer:

f(-6)=40

Step-by-step explanation:

f(x)=5(2-x)

f(x)=10-5x

f(-6)=10-5*(-6)

f(-6)=10+30

f(-6)=40

need help on this asap pleasee:((

Answers

Answer:

hatdogkajsidnevwjqo

Joe wants to buy a skateboard but he doesn't know if he has enough money. THe price of the skateboard is $85 and the sales tax is 6%. What is the sales tax for the skateboard in dollars in cents.

Answers

Answer: $5.1

Step-by-step explanation:

From the question, we are informed that thee price of the skateboard is $85 and that the sales tax is 6%.

To calculate the sales tax for the skateboard in dollars in cents, we find 6% of$85. This will be:

= 6% of $85

= 6% × $85

= 6/100 × $85

= 0.06 × $85

= $5.1

= 5 dollar, 10 cents

Fatima Sheroud sells children's clothing for The
Grasshopper Shoppe. She is paid weekly on a straight
commission of 4% on sales of $5,000.00 or less and 5% on sales in
excess of $5,000.00. One week Fatima had a gross pay of $594.50.
What were her total sales for that week

Answers

Answer:

7890

Step-by-step explanation:

(5000*4%)+(x*5%)=594.50

200+(x*5%)=594.50

x*5%=394.50

x=7890

What is the value of K? k=___​

Answers

Answer:

I'm pretty sure the answer is 2

Step-by-step explanation:

Answer:

Step-by-step explanation:

In triangle LON, <O = 90°

According to Pythagoras' Theorem

(Hyp)² = (Base)² + (Perp)²

m² = 4² + 8²

m² = 16 + 64

m² = 80

Taking square roots on both sides

√m² = √80

m = 8.94

In triangle LMN, <N = 90°

According to Pythagoras' Theorem

(Hyp)² = (Base)² + (Perp)²

(8 + k)² = l² + 4²

A bottle of water is 2/3 full. You drink 1/2 of the water. Use a model to find the portion of water that you drink.

Answers

Answer:

you drank 1/3 of the bottle

Step-by-step explanation:

split the 2/3 in half

Anna bought 8 tetras and 2 rainbow fish for her aquarium. The rainbow fish cost $6 more than the tetras. She paid a total of $37. Find the cost of a tetra.

Answers

Answer:

Step-by-step explanation:

8 tetra and 2 rainbow

2*8=16

16+6=22

16+22=38

your answer is undefinable unless you want it in the hundredths

Answer:

its either 3.125 or 3.875

Step-by-step explanation:

sorry

A car travels at a constant speed. The graph above shows the car's travels.
What does the point on the graph mean? Please write in complete sentences.

Answers

Answer:

The point shows the distance, 140 miles, driven in two hours.

Please answer I promise I will mark you brainiest

Answers

Answer:

1. A=907.92

2. A=113.1

3. A=37.5

   P=35

4. A=234

   P= 75.6

Step-by-step explanation:

Answer:

DID YOU REALLY NEED TO ASK THIS!!!!!!!!!!!!

Step-by-step explanation:

P(x)=5x^2-3x+7(x=1)
Pls

Answers

Answer:

9

Step-by-step explanation:

Given

p(x) = 5x² - 3x + 7 ← substitute x = 1

p(1) = 5(1)² - 3(1) + 7 = 5(1) - 3(1) + 7 = 5 - 3 + 7 = 9

Please help giving 10 points!
Which statements about the graphs of the equations y = 2x + 4 and y = −x + 4 are true? Select all that apply.

A. The graphs intersect the x-axis at the same point.

B. The graphs intersect the y-axis at the same point.

C. The graphs have different slopes.

D. The graphs are parallel lines.

Answers

Answer:

The answer is B and c.

Step-by-step explanation:

first thing you need to do is  look at slopes

the slopes are different then look at  the y intersects there the same

and finally they both intersect at the same point.

the correct answer is B and C.

Ella wants to buy forks and spoons for her new house. Forks cost 1$ each and spoons cost 4$ each. She spent 50$ and bought 20 items in total. Which equations represent this word problem?

Answers

Answer:

50 = 1(x) + 4(y)

Step-by-step explanation:

I'm not too sure about this answer, its more of a guess but I hope this helped :)!

X = amount of forks bought

y = amount of spoons bought

Please help!!!!!!!!!​

Answers

Answer:

bottom one

Step-by-step explanation:

A box of chocolate includes 24 chocolate pieces. If 1/4 of the chocolates contains nuts, how many chocolates do not contain nuts?

Answers

Answer:

18

Step-by-step explanation:

24 * 1/4 = 6

24-6 = 18

FIRST ANSWER GETS CROWNED BRAINLIEST!!!
If the slope of a line is 1/2, find x when (-4, 12) and (x, 5) ?
Please show formula.

Answers

Answer:

x = -18

Step-by-step explanation:

Well you just have to do the this formula to find the slope

[tex]\frac{y2 - y1}{x2 - x1}[/tex]  Plug in

[tex]\frac{5 - 12}{x - -4 }[/tex] = [tex]\frac{-7}{?}[/tex]=[tex]\frac{1}{2}[/tex]

So we know x will have to be a negative to get 1/2

I would think x = -18 because -18 - -4 = -14 so it would look like this

[tex]\frac{5 - 12}{-18 - -4}[/tex] = [tex]\frac{-7}{-14}[/tex] =[tex]\frac{1}{2}[/tex]

When you further simplify -7/-14 you get 1/2

This size running track is usually called a 400-meter track. However, if a person ran as close to the "inside" as possible on the track, they would run less than 400 meters in one lap. How far away (in meters) from the inside border would someone have to run to make one lap equal exactly 400 meters?

Answers

Answer:

They would have to be in the very center of the track

Step-by-step explanation:

Look up how wide each lane of a track is and then times that by 2.5

Solve: -3x + 8 = x + 28

Answers

Answer:

x = -5

I hope this helps!

Answer:

-5

Step-by-step explanation:

I really hope this helps

help me i need it
!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

S, BB, J

Step-by-step explanation:

Because you are going greatest (positive) to least (negative)

Highest to lowest


At Feet-R-Us colored socks are $5 and white socks are $3. Jimmy buys $32 worth of socks. An equation representing this scenario is 5c + 3w = 32. Solve this equation for c, the cost of 1 pair of colored socks

Answers

c=4 w=4

5c=20

3w=12

5c+3w=32

what is the domain and range of this graph ?

Answers

Answer:

Domain: [-3, 2]

Range: [-3, 3]

Step-by-step explanation:

Domain is the set of x-values that can be inputted into function f(x).

Range is the set of y-values that are outputted by function f(x).

We see that our x-values span from -3 to 2. Since they are both closed dots, they are included in the domain:

[-3, 2] or -3 ≤ x ≤ 2

We see that our y-values span form -3 to 3. Since they are both closed dots, they are included in the range:

[-3, 3] or -3 ≤ x ≤ 3

Sue used to have a square garage with 286 ft squared of floor space. He recently built an addition to it. The garage is still a​ square, but now it has​ 50% more floor space. What was the length of one side of the garage​ originally? What is the length of one side of the garage​ now? What was the percent increase in the length of one​ side?

Answers

Answer:

New Length = 20.71 feet

Original Length = 16.91 feet

22.47%

Step-by-step explanation:

Original area of the square garage = 286 ft squared

Addition of 50% more space

New area of the garage = 286 + .50(286)

= 286 + 143

= 429 square feet

What was the length of one side of the garage​ originally?

Original area of the square garage = 286 ft squared

Area of a square = length^2

286 = length^2

Find the square root of both sides

√286 = √length^2

Original Length = 16.91 feet

What is the length of one side of the garage​ now?

New area of the garage = 429 square feet

Area of a square = length^2

429 = length^2

Find the square root of both sides

√429 = √length^2

New Length = 20.71 feet

What was the percent increase in the length of one​ side?

(New length - old length) / old length × 100

= (20.71 feet - 16.91 feet) / 16.91 feet × 100

= 3.8 feet / 16.91 feet × 100

= 0.2247 × 100

= 22.47%

Read where it says Let C be
Thank you for helping me

Answers

Answer:

v=8

Step-by-step explanation:

-6(-5x-1) = 5x+20
WHAT DOES X EQUAL??

Answers

Step-by-step explanation:

30x +6= 5x+20

30x -5x=20-6

25x=14

25x÷25=14÷25

x=0.56

fastest land animal in the world answers

Answers

Answer:

Cheetah

Step-by-step explanation:

The cheetah or the Acinonyx jubatus can run up to 50 - 80 mph on land

Brainliest?

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