John is 6 years older than Keisha. Together their ages equal four times Keisha's age. How old is each?

Answers

Answer 1

Answer:

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Age of John = m

Age of Keisha = n

m = 6 + n

m + n = 4n

m = 9

n = 3

The age of John is 9

The age of Keisha is 3

What is an expression?

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

Let the age of John = m

Let the age of Keisha = n

Now,

John is 6 yearsolder than Keisha.

This means,

m = 6 + n _____(1)

Together their ages equal fourtimesKeisha's age.

This means,

m + n = 4n _____(2)

From (1) and (2) we get,

6 + n + n = 4n

6 + 2n = 4n

6 = 4n - 2n

6 = 2n

n = 3

Now,

m = 6 + n

m = 6 + 3

m = 9

Thus,

The age of John is 9

The age of Keisha is 3

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Answer 2

Answer: J = K+6
K + J = 4K

Replace J in the second equation
K + (K + 6) = 4K
K + K + 6 = 4K
2K + 6 = 4K
Subtract 2K from each side
6 = 2K
Divide both sides by 2
K=3

So, Keisha is 3 and therefore John is 9 because 3 + 6=9

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Can someone help me with this???

Write a multiplication equation with 1/2 as a factor (EXPLAIN)( picture is 8 apples cut in half )

Answers

16 BECAUSE YOU ADD THE CUT UP APPLES AND MAKE IT A FRACTION

Val walks 2 3/5 miles each day. bill runs 10 miles once every 4 day. in 4 days who covers the greater distance

Answers

2, 3/5 x 4
13/5 x 4/1 = 52/5 = 10, 2/5 = 10.4 mile = Val

10 miles ONCE every 4 days so
10.4 > 10
So Val walks more than Bill

well bill runs 10 miles in 4 days
multiply 2 3/5 by 4 to get the distance val runs
val runs 10.4 miles

val runs farther in 4 days

How do you solve 9s+3=57

Answers

The solution to the equation 9s + 3 = 57 is s = 6.

What is the solution to the given equation?

Given the equation in the question:

9s + 3 = 57

To solve the equation 9s + 3 = 57, first, isolate the variable "s" on one side of the equation.

9s + 3 = 57

Move the constant term (3) to the other side of the equation by subtracting 3 from both sides:

9s + 3 - 3 = 57 - 3

9s = 57 - 3

9s = 54

Now, solve for "s" by dividing both sides by 9:

9s / 9 = 54 / 9

s = 54 / 9

s = 6

Therefore, the value of 's' is 6.

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Answer: 6

Step-by-step explanation:

9s+3+57

57-3=54

Divide it by 9

54 divided by 9=6

Solve and check
14=2/3(9y-15)

Answers

$14=(2 )/(3)(9y-15)\n \n14=(2 )/(\not3^(1))*\not9^3y-\not15^5*(2 )/(\not3^1)\n \n14=6y-10\n \n6y=14+10\n \n6y=24\ \ /:6\n \ny=4$

a panel of 6 judges is being selected from a group of 10 males and 10 females.What is the probability of selecting exactly 3 male?

Answers

Probability of selecting exactly 3 male is equals to

What is probability?

" Probability is defined as the ration of the number of favourable outcomes to the total number of outcomes."

Formula used

Probability = $(n(S))/(n(T))$

$n(S) =$ Number of favourable outcomes

$n(T)=$ Total number of outcomes

According to the question,

Total number of males $=10$

Total number of females $=10$

Number of judges for a panel to be selected $=6$

As per given condition ,

Total number of outcomes $= 20\rm C_(6)$

Number of selecting exactly 3 males for 6 judges $= 10\rm C_3* 10\rm C_3$

Substitute the value in the formula to get the required probability,

Probability of selecting exactly 3 males $= ( 10\rm C_3* 10\rm C_3)/(20\rm C_(6))$

$= (120)/(323)$

Hence, the probability of selecting exactly 3 males is equals to $(120)/(323)$ .

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10nCr6 over 6nCr3 this should give you the answer

an adult blue whale weighs 120 tons. a baby blue whale weighs 1/40 of the weight of the adult blue whale. how many pounds does the baby blue whale weigh ?

Answers

1/40 * 120 = 120/40 = 3 tons

Answer:

3 tons

Step-by-step explanation:

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