Mathematics High School

To make 3 litres of pale purple paint you mix:
1.5 litres red
1.25 litres of blue
0.25 litres of white paint.
a How much red paint is needed to make 8 litres of paint?

Answers

Answer 1

Answer:

We need 4 litres of red paint.

Step-by-step explanation:

We need to take their respective precentages to compare the 3 litres of paint to 8 litres of paint.

[tex] \frac{1.5}{3} \times 100\% = 50\% \\ \frac{1.25}{3} \times 100\% = 41.67\% \\ \frac{0.25}{3} \times 100\% = 8.33\% \\ [/tex]

Now, we know that the pale purple paint contains 50% red paint, 41.67% blue paint, and 8.33% white paint.

Now, we will transfer these percentages to the 8 litres of paint:

[tex]50\% \: of \: 8 \: litres = 0.5(8) = 4 \: litres \\ 41.67\% \: of \: 8 \: litres = 0.4167(8) = 3.3336 \: litres \\ 8.33\% \: of \: 8 \: litres = 0.0833(8) = 0.6664 \: litres[/tex]

Related Questions

Choose two pairs of alternate interror angles.

Answers

Answer: angle 5 and angle 10

angle 8 and angle 11

hope this helps!

Sum of two numbers = 15 (Addition)

Difference of two numbers =3 (Subtraction)

Find the two numbers.

What is the product of those two numbers? (Multiplication)

Answers

Answer:

The numbers are  x= 9 and y =6

The product of two numbers

x y  = 9 × 6 = 54

Step-by-step explanation:

Step(i):-

Let x and y are two numbers

Given that the sum of two numbers

 x + y = 15 ..(i)

Given that the difference of two numbers

x - y = 3 ..(ii)

adding (i) and (ii) , we get

x + y + x -y = 15 +3

  2 x = 18

    x =9

Step(ii):-

Substitute x = 9 in equation (i) , we get

x + y = 15

9 + y = 15

     y = 15 - 9

    y = 6

Final answer:-

The numbers are  x= 9 and y =6

The product of two numbers

x y  = 9 × 6 = 54

Jessica's annual income is £12000
She pays 10% of the £12000 in rent.
She spends of the £12000 on clothes.
Work out how much of the £12000 Jessica has left.

Answers

Answer:

12, 000 ( .10) = £120012 000 (.25) = £3000

1200 + 3000 = £4200

12000 - 4200 = £7800

Step-by-step explanation:

I hope it's help you

Question 1- Andre says that 4x + 7 + 6x + (-1) and 15x + 5 + 1 - 5x are equivalent because they both equal 10x + 6. Do you agree with Andre? a) No b) Yes
Explain your reasoning for your choice above.​

Answers

Answer:

Yes

Step-by-step explanation:

[tex]4x + 7 + 6x - 1\\10x + 6[/tex]

[tex]15x + 5 + 1 -5x\\10x+6[/tex]

They both equal 10x + 6

Answer:

no they are not equal bcz Lhs is not =Rhs

In a candy storet a $12.00 jar of candy is labeled, "35% off." What is the discount? What is the sale price of the jar of candy?

Answers

35% of $12 is $4.20, so the sale price is $12- $4.20 = $7.80

Neeeeddddd helllppp nowwwwww!!!!

Answers

Answer:

the area is 670.32 but it's not in there

The graph of which function has an amplitude of 3 and a right phase shift of ?

Answers

Answer:

The first one

Step-by-step explanation:

The amplitude is usually the first number (for example, in this equation, the 3). Then you also know that the right or left shift depends on the addition or subtraction sign. Usually, the subtraction sign means to the right and the addition sign means to the left.

We have that the graph of which function has an amplitude of 3 and a right phase shift of [tex]\phi= \frac{\pi}{4}[/tex]  is

[tex]3sin2(x+\phi)[/tex]

The Correct option is D

From the Question we are told that

A graph has

Amplitude of 3

Phase [tex]\phi= \frac{\pi}{4}[/tex]

Generally the equation for the Wave Equation  is mathematically given as

[tex]Asin(kx-wt+\phi)[/tex]

Therefore the Equation for this particular wave is

[tex]3sin2(x+\phi)[/tex]

Hence

The graph of which function has an amplitude of 3 and a right phase shift of [tex]\phi= \frac{\pi}{4}[/tex]  is

[tex]3sin2(x+\phi)[/tex]

The Correct option is D

For more information on this visit

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Which table represents a linear function?

Answers

Answer:

top right

Step-by-step explanation:

It’s the first one I think

What is a formula for the nth term of the given sequence? 160,200,250

Answers

Answer:

can i see the picture?

picture?
l need to see that picture first

simplify the expression to a single numerical value ​

Answers

Answer:

B. 432

Step-by-step explanation:

I used a calculator.

Joe’s Coffee is having a stained glass window installed on their front door. Approximately how much glass will be needed to create the stained glass window?
PLSS USE STEPSSS!!!!
A) 2.4
B) 9.6
C) 11
D) 38.5

Answers

Correct option :

[tex]\color{plum}\tt \: D) 38.5 [/tex]

Steps to derive correct answer :

Diameter of the stained glass window Joey needs = 3.5

Area of the window = quantity of glass Joey needs

Area of the window :

[tex] = \tt\pi {r}^{2} [/tex]

[tex] = \tt3.14 \times 3.5 \times 3.5[/tex]

[tex] =\tt 3.14 \times 12.25[/tex]

[tex] =\tt 38.46[/tex]

38.46 can be rounded off to 38.5.

Therefore, quantity of glass needed to make the stained glass window = 38.5

Help me with this circle question

Answers

Answer:

50.265482457436 inches

Step-by-step explanation:

radius = 8 inches

C = 2×pi×r

= 2×pi×8

C = 50.265482457436 inches

what is the area of a 3 and a quarter inch circle?

Answers

Answer:

33.2in²

Step-by-step explanation:

to find area we have to find redious first sor=d/2

therefore

[tex]r = \frac{3 \frac{1}{4} }{2} [/tex]

[tex]r = \frac{ \frac{13}{2} }{2} [/tex]

[tex]r = \frac{13}{2} \div 2[/tex]

[tex]r = \frac{13}{4} [/tex]

[tex]area \: of \: a \: circle \: = \pi {r}^{2} [/tex]

[tex] = \pi (\frac{13}{4} ) ^{2} i {n}^{2} [/tex]

[tex] = \pi \times \frac{169}{16} {in}^{2} [/tex]

[tex] = \frac{169\pi}{16} i {n}^{2} [/tex]

[tex] = 33.2 \: i {n}^{2} [/tex]

Pls help my semester end today and I have ds

Answers

Answer:

4.125 I believe.

Step-by-step explanation:

x/7-1=1-2/3y
HELPPPPP

Answers

Answer:

-14/3y+ 14

Step-by-step explanation:

hope this helps

What is 4/5 as a decimal?

Answers

Answer:

Umm, 0.8

Step-by-step explanation:

Is this fr?

0.8. Because it just is idek

what is the middle line of 56 and 6?

Answers

50 I think hope this helps

How do you do these question and what's the answer?

-1/3 (n + 15) = -2
46 = -6t -8

Urgent. Please answer ASAP. Thanks guys!

Answers

Answer:

n= -9, t= -9

Step-by-step explanation:

1) -1/3(n+15)=-2

-1/3×n+-1/3×15=-2

-1/3×n -5= -2

-1/3 n-5+5= -2+5

-1/3×n=3

3/-1×-1/3×n=3/-1×3

n= -9

2) 46 = -6t -8

−6t−8=46

−6t−8+8=46+8

−6t=54

Divide both sides by -6

t=-9

I NEED ANSWERS ASAP ITS DUE TODAY

Answers

Answer:

C

Step-by-step explanation:

First find the radius:

5 pi = 2 pi r

cancel out pi

5 = 2r

r = 5/2

Then find the area:

A = pi r^2

A = pi 5/2^2

A = 25/4 pi

If ABCD is a square what is m< AEB
A) 30°
B) 45°
C) 60°
D) 90°

Answers

Answer:

90

Step-by-step explanation:

The angle of AEB is 90 degrees, took the test and got it correct!

The measure of m<AEB is 90 degrees

Squares and triangle

From the given square, the triangle AEB is a right triangle.

A right triangle has one of its angles to be 90 degrees.

According to triangles AEB, m<EAB = m<ABE = 45 degrees

m<AEB = 180 - (45+45)

m<AEB = 180 - 90

m<AEB = 90 degrees

Hence the measure of m<AEB is 90 degrees

learn more on squares here: https://brainly.com/question/1538726

A bicycle was priced at $400. Later the price was reduced by 20%. What is the price after the reduction?

Answers

Answer:

320

Step-by-step explanation:

400*80/100=320

Answer:

$320 is the final price, $80 is the amount taken off

A'B'C', which statements must be true? Select three options

Answers

Answer:

They are all true

Step-by-step explanation:

A seems right. But so does B. Infact C also seems rights so they are all correct

21. Evaluate the following: 17C3. *
A. 210
B. 504
C. 35
D. 680

Answers

Answer: D.680

Step-by-step explanation:

Original gas price 1.25 new gas price one dollar 1.75 find the percent of increase

Answers

Answer:

140%

Step-by-step explanation:

1.25 * x/100=1.75

125*x=175

x=1.4

So the awnser is %140 percent

math i need help with

Answers

D. 15/24
5 x 3 = 15
8 x 3 = 24

5, 20, 80, ...
what is the sequence?

Answers

Answer:

Multiply by 4

The next part of the sequence would be 320

Step-by-step explanation:

5 x 4 = 20

20 x 4 = 80

80 x 4 = 320

Multiply by 4. 5*4=20. 20*4=80

Kamil has 72 baseball cards. He wants to put the cards
in a book. He can fit 9 cards on each page of the book.
Which number sentence can be used to find the number
of pages Kamil can fill with baseball cards?
А
72x9=
B
72-9=
C
72 +9=
D
72=9=

Answers

You would use 72/9 , ( division ).

Eliminate the parameter t. Find a rectangular equation for the plane curve defined by the parametric equations.
* Brainliest for answers and explanations * PLEASE PLEASE PLEASEE HELP

• (1) x= sqrt t, y=4t+3; 0 ≤ t ≤ 4

A) y = - 3x ^ 2 + 19; 0 ≤ x ≤ 2
B ) y = - 3x + 19; 0 ≤ x ≤ 2
C) y=4x^ 2 +3; 0 ≤ x ≤ 2
D ) y=3x^ 2 +4; -1 ≤ x ≤ 2

• (2) x=2t, y=t+2; -2 ≤ t ≤ 3

A ) y=x ^2 + 1; - 2 ≤ x ≤ 2
B) y= 1/2x -2; -∞ C) y= 1/2x +2; -4 ≤ x ≤ 6
D ) y=-2x+2; -∞

Answers

Answer:

1. C

2. C

Step-by-step explanation:

1. x = [tex]\sqrt{t}\\[/tex], y = 4t +3

Solve for t:

t = [tex]x^{2}[/tex]

Plug in t:

y = 4([tex]x^{2}[/tex] ) +3

y = 4[tex]x^{2}[/tex] +3

2. x = 2t, y = t + 2

Solve for t:

t = x/2

Plug in t:

y = 1/2x + 2

Please help it’s due at 11:59

Answers

Answer:

c=-16

Step-by-step explanation:

Find the values of x and y in the d

Answers

9514 1404 393

Answer:

x = 20y = 10

Step-by-step explanation:

The angle marks show that ΔRST is isosceles, so RT = RS. They also show ΔRTU to be equilateral, so UT = RT.

  UT = RS

  x -5 = 15

  x = 20 . . . . . . add 5

__

ΔRTU is equilateral, so ∠RTU is 60°. The angle marked 3y° is complementary to that.

  3y = 30

  y = 10 . . . . . divide by 3

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