Mathematics High School

Who can help me on my math I’m failing can y’all please help me on some questions.
It’s solving systems of equations

Who Can Help Me On My Math Im Failing Can Yall Please Help Me On Some Questions.Its Solving Systems Of

Answers

Answer 1

Answer:

7 quarters, 8 nickels

Step-by-step explanation:

So the system of equations you have is:

x + y = 15

0.25x + 0.05y = 2.15

Here's how to solve:

first, multiply both sides of the equation 0.25x + 0.05y = 2.15 by 100 to get rid of the decimal places:

25x + 5y = 215

Then, you can divide both sides by 5 to simplify it more:

5x + y = 43

Now, you have the system of equations:

5x + y = 43

x + y = 15

Now subtract the two equations:

4x = 28

divide both sides by 4

x = 7

plug x = 7 into the equation x + y = 15 to solve for y:

7 + y = 15

subtract 7 from both sides

y = 8

So you know that there are 7 quarters and 8 nickels.

Answer 2

Answer:

John and his 3 friends decide to order food. The cost of one box of food is $x. If each boy purchases one box of food, what is the total cost? *

Related Questions

If a pen and a pencil cost £1.10 for both and the pen costs £1 more than the pencil, what is the cost of the pen?

Answers

Answer:

The pen will cost £1.05. Trust me. It is right. £1.10-1.05=0.05. £1.05-£0.05=£1

Step-by-step explanation:

Sammy went to the mall and bought a shirt for $23.00 and shoes for $67.00.
She had a 35% off coupon. After the coupon was applied, what was the total
sale price for the shirt and shoes?

Answers

I think the answer is $58.50. I hope this helps

Brian invests £1900 into his bank account.
He receives 4.5% per year compound interest.
How much will Brian have after 7 years?
Give your answer to the nearest penny where appropriate.

Answers

Explanation

A = C (1 + I)**t
A = 1900( 1+0.045)**7
A= 2585.64£
Answer

2585.64£

Does anyone know what the answer is?​

Answers

21 I think. 21/14=12/8

What is 3 ÷ 1/2 can you help me with this

Answers

Answer: 1.5 or 1 1/2

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

3 ÷ 1/2 = 6

1/2 can go into 3, 6 times.

Please solve this giving 150 points plus the crown
I have been looking everywhere for this and still can't find it so please help me please odnt spam/scam me because it took me a while to gt the points.

Answers

Answer:

money saved = 1.5 x time

Step-by-step explanation:

Find the gradient with rise over run

3/2 = 1.5

Answer:um i think money saved = 1.5 x time

im not 100% sure but i think it is right

Step-by-step explanation:

write the equation of the line in fully simplified slope intercept form​

Answers

Answer:

[tex] y = \dfrac{5}{2}x - 4 [/tex]

Step-by-step explanation:

The equation of a line in slope-intercept form is

y = mx + b

where m = slope, and b = y-intercept.

From the graph, we see that the y-intercept, b, is -4, so now we have

y = mx - 4

Now we need to find the slope from the graph.

We see that the points (0, -4), the y-intercept, and (2, 1) are points of the line.

slope = rise/run

rise is a vertical distance. (Up is positive; down is negative.)

run is a horizontal distance. (Right is positive; left is negative.)

Start at (0, -4). Go up 5 units. That is a rise of +5 since you went up. Now go 2 units to the right. That is a run of +2 units since you went right. The rise is 5, and the run is 2.

m = slope = rise/run = 5/2

The equation is

[tex] y = \dfrac{5}{2}x - 4 [/tex]

Hardest question in world

Answers

Answer:

every answer is correct

Step-by-step explanation:

Answer:

EVEHY

EXSWEH

IS

EOHHEKT



Use what you already know to find a, b, and c.
Input each value. Then click done. HELP ME PLEASE FAST!

Answers

Answer:

Use the "find vertically opposite angle" method.

a = 80°

To find the other angles:

Since the angles equal up to 360 which makes a full circle shape...

360 - 80 - 80 = 200 (B and C)

200 ÷ 2 = 100 (Angle for B and C since they are vertically opposite, hence having the same angle)

b = 100°

c = 100°

PLEASE HELP IM BEGGING YOU ILL GIVE BIRRELENTLIST

Answers

Answer:

7

Step-by-step explanation:

Answer:

Step-by-step explanation:

10^4 x 8 = 80,000. 10^3 = 1000. 80,000 - 1000 = 79000. 87,000-79000= 8000. The answer would be 8000. I think. Don't come at me if I'm wrong, I'm just trying to help.

Question 10 of 10
Which of the equations below could be the equation of this parabola?
5
-5
Vertex (0,0)
5
5
A. x = 3y2
B. y= 3x2
c. y=-3x2

Answers

Answer:

×=234(43)rep3224×89

234+432=642

the answer is 642

3×2=6

The equation of the parabola that represents the given graph is y = 3x².

The correct option is B.

What is a parabola?

A plane curve produced by a moving point such that its separation from a fixed point equals that of a fixed line is a parabola.

If the vertex of the parabola is at (0, 0), then the equation of the parabola has the form:

y = a x²

where "a" is a constant that determines the shape of the parabola. We need to find the value of "a" using the fact that the parabola passes through the point (1, 3).

Plugging in the coordinates of the passing point (1, 3), we get:

3 = a (1)²

3 = a

Therefore, the value of "a" is 5.

Hence, the equation of the parabola is:

y = 3x²

To learn more about the parabola;

https://brainly.com/question/21685473

#SPJ5

What is the best estimate for 8.3 x 4.9?

Answers

Answer:

40.67

Step-by-step explanation:

I calculated it

HELPPPP WHICH 2 ARE LINEAR FUNCTIONS ???

Answers

Answer:

1 and 2

Step-by-step explanation:

The first and second option,

The others all have a number or variable with exponent which means it's a parabola and linear means straight lines and parabolas are no straight at all.

the linear ones are the top 2

Factor the following expression: 16z+20

Answers

Answer:

4z + 5

Step-by-step explanation:

16 and 20 are both dividable by 4, so you divide them both by four and then you have your answer

Answer:

4(4z + 5)

Step-by-step explanation:

Given

16z + 20 ← factor out 4 from each term

= 4(4z + 5) ← in factored form

£300 is deposited in a bank paying 2.25% compound interest per annum.
What is the balance after 2 years?

Answers

i think it might be £168.75 or £468.75. is the money increasing or decreasing?

Luke buys a T.V that is on sale for 45% off the original price. The original price is $189 more than the sale price. What is the
original price of the TV?

Answers

Answer:

420

Step-by-step explanation:

45%->189

100%->420

2. The coordinate grid shows triangle RST. (x, y) - 0,-) S R. ✓ O (x,y) - (x, y) O (x,y) - (-y, x) O (x,y) - (-x, y) CLEAR ALL Triangle RST is rotated 90° about the origin to create triangle R'S'T'. Which rule describes this transformation?​

Answers

Answer:

reflection

Step-by-step explanation:

i hope this is right lol

Answer:

(x, y) -> (-y, x)

Step-by-step explanation:

I hope u get this right

Delilah works at RaceTrac for $8 an hour. Which equation best represents this situation?
y = x
y = 8x
y = 4x
y = 16x

Answers

The second option, y= 8x

dividir
1. a²-ad÷a
2. 3x²y³-5a²x⁴÷-3x²​

Answers

Answer:

1. a^2 − d

2. 3x^2y^3 + 5a^2x^2 / 3

Step-by-step explanation:

Hope this helps ~

Helppppppppp pleaseeeee

Answers

4.83
8x-11=2x-7+25
8x=2x+29
6x=29
divide by 6 on both sides
x=4.833333333

Answer:

x=4.833

Step-by-step explanation:

VH+HS=VS

VH=2x-7

VS=8x-11

HS=25

2x-7+25=8x-11

2x-2x-7+25=8x-2x-11

18=6x-11

18+11=6x-11+11

6x=29

x=4.833

Fabricio bought some Jordans for $160 from last week’s paycheck. He saved $70 after his purchase. Write an equation to represent how much money, M ,Fabricio had before he bought the shoes.

Answers

Answer:

$160=$70+M

Step-by-step explanation:

I believe this is the answer, hope this helps

how do you write a unit rate with 600 calories in 8 servings

Answers

Answer:

75 CALAORIES IN 1 SERVING

Step-by-step explanation:

You would do 600 divided by 8 to get 75 calories for 1 serving

Please help. Im stuck on this question and cant figure this out/

Answers

Answer:

34.1 and 34.3

Step-by-step explanation:

Since it is 2/9 and it's going up by 10's the decimal is .22222222. So it would be between numbers of .1 and .3. Hope this helps!

Can someone help me do my math on edge? I can pay

Answers

Answer:

ummm, why do you wanna pay just ask your question...

Step-by-step explanation:

Function 2
{(0,5), (4, 5), (8,5), (12,5)}
O Linear
Not linear

Answers

if it is linear function

If I=v-1, then i^2=
Algebra 2 The v is a Square root. I need help!!

Answers

Answer:

-1

Step-by-step explanation:

√-1*√-1= -1

similar to how

√2*√2=2

PLEASE HELP!! Don’t answer just for points
Hannah is having a birthday party, and each guest gets a bag of party favors. Each goody bag contains one of 2 different toy cars and one of 6 different toy trucks. How many different combinations of party favors can there be in a goody bag?

Answers

Answer:

12

Step-by-step explanation:

for everyone 1 toy car there is 6 trucks so 2x6 is 12

2) Ellis thinks of a number.
He multiplies it by 4 and then subtracts 10
The result is 14
What number did Ellis think of?

Answers

Answer:

6

Step-by-step explanation:

6*4-10=14

what is -310.5 as a fraction​

Answers

Answer:

- 310.5/100

Step-by-step explanation:

Answer:

-310 1/2

Step-by-step explanation:

hope this helps :)

the perimeter of a rectangular farmland is 300m. if the length of the field is 120m, what is the width of the field​

Answers

Answer:

30m

Step-by-step explanation:

120 x 2 = 240

300 - 240 = 60

60 divided by 2 = 30

width = 30m

The answer for that question is 30
Other Questions
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