I need help its systems of equations 25 points

I Need Help Its Systems Of Equations 25 Points

Answers

Answer 1
Kevin=k
Daniel=d
k=4d
k=d+6
4d=d+6
4d-d=6
3d=6
d=2

k=d+6
k=2+6
k=8

Daniel is 2
Kevin is 8
Answer 2

Answer:

Step-by-step explanation:

Let Daniel's age be X:

X×4. = 4x

X×4. =. 6

4X. =. 6

Divide both sides by 4:

4X÷4. =. 6÷4

X. =. 1.5


Related Questions

Find the coordinates of the point P that divides the directed line segment from A to B in the given ratio. A (-5, 12) B (11, 0) 1 :3

Answers

Answer:

(7, 3)

Step-by-step explanation:

Using the midpoint formula

M(X, Y) = {(ax1+bx2/a+b), ay1+by2/a+b}

X = ax1+bx2/a+b

X = -5(1)+3(11)/1+3

X = -5+33/4

X = 28/4

X = 7

Y = ay1+by2/a+b

Y = 1(12)+3(0)/1+3

Y = 12/4

Y = 3

Hence the coordinate of P is at (7, 3)

Sorry the picture’s blurry!!

Answers

Answer:

odancLo mismo estoy bus

Step-by-step explanation:

The first time Jane went to the fitness center she exercised for 20mins. She adds 10 mins to her exercise program every other day after that. how many days will it take Jane to build her exercise program every other day after that. how may days will it take Jane to build her exercise program up to an hour in length?

Answers

Answer:

9 days

Step-by-step explanation:

Day 1 20 min

Day 2 20 min

Day 3 30 min

Day 4 30min

Day 5 40 min

Day 6 40 min

Day 7 50 min

Day 8 50 min

Day 9 60 min

FIND THE ANGLE OF ELEVATION. PLS HELP. ANSWER IF YOU FOR REAL KNOW THE ANSWER. I WILL MARK U BRAINLEST IF THE ANSWER IS CORRECT

Answers

Answer:

46.06

Step-by-step explanation:

the angle from the right triangle is 43.94 so you subtract from 90 and 46.06

Answer:

46 degrees

Step-by-step explanation:

acos(18/25) is 43.95

Subtract that from 90 and round and you get 46 degrees

The figures above are examples of

Answers

Answer: altitudes.
Have a good day.
It’s b sorry if I’m wrong

What are the like terms in the expression below? 3x+8 +3y+8x

Answers

Answer:

3x and 8x

Step-by-step explanation:

They both share the same variable unlike 8 and 3y which have different variables. Once simplified, the expression should equal 11x + 8 + 3y

Answer:

3x and 8x

You see 3x and 8x are both like terms because they both have x

but..

The other 3 does not have a x it has a y

I hope this helps

Let me know

:)

hey need help with this quick question, thanks :)

Answers

Answer:

The answer is 2

Step-by-step explanation:

just subtract the powers of 10 and 8.

Points A,B,C arr collinear points where B is between A and C. if AB=3, BC=2. find AC. ​

Answers

AC=39 because x=9 sjifodjsjrjjfidisjejdj

C. No, Bretts claim is incorrect because the pythagorean can only be used with a right triangle

D. No, Bretts claim it is incorrect because the pythagorean theorem can only be used when the side length of a triangle are equal

CAN SOMEBODY PLEASE HELP

Answers

Answer:

C. The answer is C, as pythagorean theorem only works on right triangles.

Gravity pulls the metal down at 10 N, but the metal pieces RISES! At least how much force is needed to make it move upward?

Answers

Answer: Greater than 10 N

Step-by-step explanation:

Given

Gravity force on metal is 10 N

But the metal piece is rising i.e. there must be an upward force greater than 10 N

Suppose the force is F

So, we can write

[tex]\Rightarrow F>10\ N[/tex]

Any force greater than 10 N is sufficient for the metal to move upwards

The greater the amount of force faster will be the movement

In 2010, the number of participants in a checkers tournament was 2.6 × 10^4 people. In 2013, the number of participants in a checkers tournament was 5.2 × 10^6 people. By what factor did the number of participants increase from 2010 to 2013?

Answers

In 2010, the number of participants in a checkers tournament was 2.6 × 10^4 people. In 2013, the number of participants in a checkers tournament was 5.2 × 10^6 people. By what factor did the number of participants increase from 2010 to 2013?

A company makes muesli which contains nuts and sultanas.
They counted the number of nuts in 50 individual serving packets.
They drew this table.
Number of nuts
Number of
Midpoint (x)
packets (0)
fx
4-6
5
3
15
7-9
8
9
72
10 - 12
11
12
132
13 - 15
14
17
238
16 - 18
17
9
153
50
610
a) Complete the table.
b) Calculate an estimate for the mean.

Answers

A company makes muesli which contains nuts and sultanas.

They counted the number of nuts in 50 individual serving packets.

They drew a table.

Number     Midpoint   Number of            

of nuts         (x)           packets (f)              f.x  

4 - 6               5                3                      15

7-9                 8                9                          

10 - 12           11                 12                      

13 - 15            14                17                          

16 - 18            17                 9                    

                                     50                    

To Find :

complete the table

calculate and estimate for the mean

The estimate for the mean number of nuts in a serving packet of muesli is approximately 12.2 nuts.

a) To complete the table, we need to find the values of "fx" (frequency multiplied by the midpoint) for each class interval. Here's the updated table:

Number of Nuts Number of Packets Midpoint (x) fx

4-6 5 5 5 * 3 = 15

7-9 8 8 8 * 9 = 72

10 - 12 11 11 11 * 12 = 132

13 - 15 14 14 14 * 17 = 238

16 - 18 17 17 17 * 9 = 153

Total 50  610

b) To calculate an estimate for the mean, we use the formula:

Mean = Sum of (fx) / Total Number of Packets

Mean = 610 / 50

Mean ≈ 12.2

Therefore, the estimate for the mean number of nuts in a serving packet of muesli is approximately 12.2 nuts.

To know more about mean here

https://brainly.com/question/1136789

#SPJ2

Identify the numerator for the following fractions:

(1) 3/13

(2) 10/18

(3) 6/5

(4) 35/60

Answers

(1) 3
(2) 10
(3) 6
(4) 35

Padma buys a coat for $32.95 and a pair of shoes for $16.45. She is charged 5% sales tax.
What is the total cost of Padma’s purchases?
A. $47.81
B. $51.87
C. $53.46
D. $57.92

Answers

B , I remember having this and it was B , but your answers could be in different spots then mine but I say B
B is the right answer to this

PLZ HELP
A figure is shown, where triangle ABC is similar to triangle ADE. The location of point A is (1.2,2.1). The line connections points A,B, and D passes through the origin. What is a possible order pair for point D

Answers

Answer:

i dont know for sure but it says possible order pairs

6,12

Answer: 8 and 14

Step-by-step explanation:

I'm 100% sure its 8 and 14

please help me,
11x13 = _ x 13+5 x 13
what is the number that goes in the blank

Answers

Answer:

14508 if I'm wrong I'm sorry

plsssss help me its due in 5 minss i beg.

Answers

Answer:

15.13

Step-by-step explanation:

To find diameter, divide circumference by pi or 3.14

I'm going to change the fraction to a decimal, so 47.5

47.5/3.14 = 15.1273885

Round to nearest hundredth gives you 15.13

What is 63% of 130?

I need it worked out pls

Answers

Answer:

81.9

Step-by-step explanation:

63 of 130 is 48.46%

Steps to solve "what percent is 63 of 130?"

63 of 130 can be written as:

63

130

To find percentage, we need to find an equivalent fraction with denominator 100. Multiply both numerator & denominator by 100.

Answer:

81.9

Step-by-step explanation:

63/100 x 130 = 81.9

Your welcome! :)

–7 + 8x2 – 4x




WHY WHY WHY

Answers

Answer:

3

Step-by-step explanation:

8*2 = 16 + -17 = -1 - 4 = 3

Answer:

3 if you accidentally put that x at the end there.

Step-by-step explanation:

Hunter is going to invest in an account paying an interest rate of 1.7% compounded continuously. How much would Hunter need to invest, to the nearest cent, for the value of the account to reach $4,500 in 18 years?

Answers

Answer:

$3333.33 approx

Step-by-step explanation:

Given data

Rate r= 1.7%

Final Amount A=$4500

Time = 18years

Principal P= ????

The expression for the compound interest is given bellow as

A=P(1+r)^t

4500= P(1+0.017)^18

4500= P(1.017)^18

4500= P*1.35

P= 4500/1.35

P= $3333.33

Hence the principal is $3333.33 approx

Answer:3313.74

Step-by-step explanation:

The price of pears can be determined by the equation P=0.65n, where P is the price and n is the number of pears. What is the constant of proportionality (unit rate)?

Answers

Answer:

0.65

Step-by-step explanation:

Given equation:

P = 0.65n

where,

P = price

n = number of pears

What is the constant of proportionality?

The constant of proportionality is 0.65

For example

Find P when n = 2

P = 0.65n

= 0.65(2)

P = 1.3

Which of the following values does not satisfy the inequality x − 2 ≤ 3?
A 3
B 5
C 7

PLEASEEE HELPPPPPPPPPPPPPPPPP

Answers

Answer:x≤5

Step-by-step explanation:

Answer:

Option C 7.

Step-by-step explanation:

First lets define this symbol ≤.  This symbol mean smaller than or equal to.  So lets put options 3, 5, and 7 into this equation.

3 - 2 ≤ 3  This is correct.

5 - 2 ≤ 3   This is correct.

7 - 2 ≤ 3   This is incorrect.

What’s the answer??????

Answers

Answer:

50p

Step-by-step explanation:

you can add them all up together. 27+3+6+14=50!

What is the factorization of 216x12 – 64?

(6x3 – 4)(36x6 + 24x3 + 16)
(6x3 – 4)(36x9 + 24x3 + 16)
(6x4 – 4)(36x8 + 24x4 + 16)
(6x4 – 4)(36x12 + 24x4 + 16)

Answers

9514 1404 393

Answer:

  (c)  (6x^4 – 4)(36x^8 + 24x^4 + 16)

Step-by-step explanation:

The correct factoring can be found by looking at the first exponent in the second set of parentheses.

The factorization of ...

  (a^3 -b^3)

is ...

  (a -b)(a^2 +ab +b^2)

__

Here, you have a=6x^4 and b=4, so the first term in the second parentheses is ...

  a^2 = (6x^4)^2 = 6^2·x^(4·2) = 36x^8 . . . . matches the 3rd choice

Answer:C

Step-by-step explanation:

The shorter leg of a right triangle is two less than the hypotenuse. The longer leg is one less than the hypotenuse. Find all three sides of the triangle. HELP TEST!

Answers

Answer:

x = 5

Step-by-step explanation:

using the Pythagorean theorem:

(x-1)² + (x-2)² = x²

x²-2x+1 + x²-4x+4 = x²

reduce:

2x²-6x+5 = x²

subtract x² from each side:

x²-6x+5 = 0

(x-1)(x-5) = 0

x=1 but because shorter leg would be 0, a triangle would be impossible.

x=5

CAN SOMEONE PLSS HELP I WILL MARK BRANLIEST!

Answers

The answer is 55 degrees
55 degrees because the angles in a isosceles triangle are 180 degrees so 180-70=110 110/2 is 55

What is the solution to the following system of linear equations?
Y=-31-9
2x + 3y = -13

A. (-3,-2)
B. (-3,0)
C. (2,3)
D. (-2,-3)

Answers

Answer:

x=107/2, y=-40. (107/2, -40).

Step-by-step explanation:

y=-31-9=-40

2x+3(-40)=-13

2x-120=-13

2x=-13+120

2x=107

x=107/2

Geometry geometry geometry

Answers

Answer:

3/5.

opposite / hypotenuse

9/15 = 3/5

Answer:

a

Step-by-step explanation:

Sine is equal to the opposite divided by the hypotenuse

the opposite of E is 9 and the hypotenuse is 15

sin E = 9/15

we can simplify 9/15

9/3=3

15/3=5

the answer would be 3/5

Use the identity LaTeX: \left(x+y\right)\left(x^2-xy+y^2\right)=x^3+y^3 to find the sum of two numbers if the product of the numbers is 28, the sum of the squares is 65, and the sum of the cubes of the numbers is 407.

Enter your answer as a number, like this: 42

Answers

Answer:

you just copy and pasted from your canvas assignment or something. its a bunch of random code.Step-by-step explanation:

Write the word sentence as an inequality. Then solve the inequality.

The product of −2 and a number x is greater than 30.

Answers

Step-by-step explanation:

divide by 2 then reverse

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