WILL GIVE BRAINLIEST AND 55 POINTS

If an alloy requires copper, metal, and zinc in a ration 12:5:3, how many kilograms of each metal are needed to make 5kg of the alloy

Answer:

Sx = 3 units

Step-by-step explanation:

use Pythagorean theorem:

a² + b² = c²

where a = h

          b = 8/2  = 4

          c = 5

plugin values into the formula:

h² + 4² = 5²

h² = 5² - 4²

x = √9

x = 3

Answer:

3 / 10

Step-by-step explanation:

Total = 30 times

n ( T ) = 30

Green = 9

n ( G ) = 9

To find : Probability of Green [ P ( G ) ]

Formula : -

P ( G ) = n ( G ) / n ( T )

P ( G ) = 9 / 30

9 = 3 x 3

30 = 3 x 10

P ( G ) = ( 3 x 3 ) / ( 3 x 10 )

P ( G ) = 3 / 10

Hence,

the experimental probability that the next time the spinner is spun, it lands on green is 3 / 10.

Answer:

he' ll have 8 fruits left

Step-by-step explanation:

18 + 16  =  34 ,  34-26 = 8

Answer:

the answer is 8

Step-by-step explanation:

u do 18 +16 which equals 34 then u minus how many friends he has by 34 because each friend got only one so u minus that and it equals 8

Answer:

3 pails

Step-by-step explanation:

I did this one on a diferent one lol

-lukelaws

Hope I helped If I did please mark me brainliest if I got it wrong sorry!

Answer:

2,4

Step-by-step explanation:

The average rate of change for P between 1992 and 2000 is -1.025.

Average rate of change function is the average rate by which a quantity is changed with respect to another quantity.

It can be calculated as the amount of change in a quantity divided by the amount of change in another quantity.

Average rate of change for a function 'f' in the interval [a, b] is,

A = [tex]\frac{f(b) - f(a)}{b - a\\}[/tex]

Here P is the function which is the percent of voters between ages 18 and 29 in the interval 1992 to 2000

Average rate of change for P = P(2000) - P(1992) / 2000 - 1992

A = [34.5 - 42.7] /[2000 - 1992]

A = -8.2 / 8

A = -1.025

Hence, the average rate of change for P between 1992 and 2000 is -1.025.

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V = 107.52

HOPE ITS HELP

AND MARK ME AS BRAINLIST

Step-by-step explanation: the answer is 53.76 because first of all to find the answer you need to multiply 0.5 or 1/2 times 3.2 times 4.8 times 7 getting an answer of 53.76 cm^3 so hopefully that is the correct answer and have a great day.

This is multiplication:

-1.6 x -7.1 = 11.36

Answer: 11.36

Answer: The mean rate given by customer is -1.25

Step-by-step explanation:  We are given the following in the question:

-3.5, 4, 4.5, -5.25, -4, -3.25, -4.25, 1.75

Formula:

Putting values, we get,

Thus, the mean rate given by customer is -1.25 you may mark brainliest

Answer:

its B and E

edit: i forgot C

Step-by-step explanation:

Answer:

Its B, C, E Are the answers!

Step-by-step explanation:

-lukelaws

Hope I helped if I did please mark me brainliest I need one more!

Hey there!

2(x - 3) / y = 5

2(x - 3) / 5 = 5

2(x) + 2(-3) / 5 = 5

(2x - 6) 5 = 5

MULTPLY 5 to BOTH SIDES

(2x - 6)/5 * 5 = 5 * 5

SIMPLIFY IT!
2x - 6 = 5 * 5

2x - 6 = 25

ADD 6 to BOTH SIDES

2x - 6 + 6 = 25 + 6

SIMPLIFY IT!
2x = 25 + 6

2x = 31

DIVIDE 2 to BOTH SIDES

2x/2 = 31/2

SIMPLIFY IT!

x = 31/2

x = 15 1/2

Therefore, the answer should be:

x = 15 1/2

Good luck on your assignment & enjoy your day!

~Amphitrite1040:)

Answer:  15 1/2

Step-by-step explanation:

Answer:

Its the very top one

Step-by-step explanation:

Answer:

letter b

Step-by-step explanation:

Answer:

A: 1 solution

B: (4,4) is the solution

Step-by-step explanation:

They have different slopes so they're already different equations and because of that, they can only have one solution.

The intersection of the two lines is the solution since those coordinates satisfy both equations.

Answer:

The solutions of a graphed pair of equations are the points of intersection - the points on the graph where the two lines cross each other.  At this point, when inputting the same x-value into the 2 equations, the resulting y-values will also be the same.

Therefore, from inspection of the graph, there is one point of intersection, and so one solution.

The name for a system that has one solution and intersects at one point is Consistent Independent

From inspection of the graph, the point of intersection is (4, 4).

Therefore, the solution to the equations of line A and B is (4, 4).

Proof

Using substitution:

⇒ x = -0.5x + 6

⇒ 1.5x = 6

⇒ x = 4

Substituting the found value of x into one of the equations to find y:

⇒ y = 4

Therefore, the solution is (4, 4)

Answer:

A rectangle

Step-by-step explanation:

graph the points

Answer:

3/7

Step-by-step explanation:

there are 7 sections total. 1,3,5, and 9 are all odd. so, there are still 3 sections left where there there are even numbers (4,6, and 8.) 3+4=7.

3 out of the 7 sections are even. D.

The percent decrease in the population is 12%

Percentages are essentially fractions where the denominator is 100.

Given that, the population of a city was 51,000. Several years later it was 44,880.

We are asked to find percent decrease,

Percent decrease = Final element - initial element / initial element x 100

Percent decrease = 44880 - 51000 / 51000 x 100

= -6120 / 51000 x 100

= --0.12 x 100

= -12%

Here, - sign is showing the decrease.

Hence, the percent decrease in the population is 12%

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1) 2.65 - 0.63 =2 .02

2) 3.28 - 0.63 = 2.65

3)2.65 + -2.02 = 0.63

4) 0.63 - 3.28 = 2.65

1) 2.65 - 0.63 =2 .02

2) 3.28 - 0.63 = 2.65

3)2.65 + -2.02 = 0.63

4) 0.63 - 3.28 = 2.65

Sorry for the long wait but hopefully this helps <3

Answer:

The answer to your question is 9 cm

Step-by-step explanation:

Data

slant height = 15 cm

height = 12 cm

radius = ?

Process

To solve this problem, use the Pythagorean theorem. The slant height is the hypotenuse, the height is the long leg and the radius is the short leg.

            c² = a² + b²

          slant height² = height² + radius²

-Solve for radius

          radius² = slant height² - height²

-Substitution

          radius² = 15² - 12²

-Simplification

           radius² = 225 - 144

           radius² = 81

-Result

           radius = 9 cm

Answer:

d

Step-by-step explanation:

60+30(1 hr)

=90

90 pages in the book

so d.

Answer:

The correct answer is D) 1

Step-by-step explanation:

There are 30 remaining pages for Andy left to read. We know he reads 30 pages per hours, therefore, he will be finished reading the book in an hour.

Answer:

1850

Step-by-step explanation:

The problem is asking you how many kids (predicted by the superintendent) will buy lunches for 1-2 days. Since you know the percentage predicted and the student amount, just multiply as a decimal (convert by putting the number over 100 as a fraction.)

5000*0.37=1850

Answer:

205 bones

Step-by-step explanation:

Add all bones and let the unknown be x

(250+199+85+101+x)/5=168

(635+x)/5=168

Cross multiply

168*5=635+x

840=635+x

840-635=x

x=205.

That's all

Answer:

[tex] \sqrt{277} [/tex]

Step-by-step explanation:

[tex]x { }^{2} = 9 {}^{2} + 14 {}^{2} \\ \sqrt{x {}^{2} } = \sqrt{14 {}^{2} + 9 {}^{2} } \\ x = \sqrt{277} [/tex]

2. the answer is 90° the angle

3. the answer is 60° the angle

Answer:it would be C.

Step-by-step explanation:

6-(-6)=12 and 5-(-3)=8, so if you put it in the fraction, it would end up as 3/2.

3-(-3)=6 and 3-(-1)=4, and 6/4 simplified is 3/2. If both slopes are 3/2, then they would be parallel, showing that the two lines have the same slope. Another way to prove is that 3/2=3/2 is true