All categories

3 years ago

In 6 years, John will be 3 times the age he was 2 years ago. What is his current age?

Mathematics

1 answer:

Vladimir79 [104]3 years ago

7 0

Answer:

John is currently 6 years old.

Step-by-step explanation:

2 years ago: x years

Current time: x+2

In 6 years: x+8

EQUATION:

3(x)=x+8= 3x=x+8

(subract x from both sides)

2x=8

x=4

Therefore, John is 6 years old in current time

You might be interested in

I am so lost, please help

skelet666 [1.2K]

Answer:

$u=\frac{9}{t}-\frac{1}{2} a t$

Step-by-step explanation:

Step 1: Given equation: $9=\frac{1}{2} a t^{2}+u t$

To get u, by subtraction equality property subtract both sides of the equation by $\frac{1}{2} a t^{2}$ .

$\Rightarrow 9-\frac{1}{2} a t^{2}=\frac{1}{2} a t^{2}+u t-\frac{1}{2} a t^{2}$

$\Rightarrow 9-\frac{1}{2} a t^{2}=u t$

Step 2: By division equality property, divide both sides of the equation by t.

$\Rightarrow \frac{9-\frac{1}{2} a t^{2}}{t}=\frac{u t}{t}$

$\Rightarrow \frac{9}{t}-\frac{1}{2} a t=u$

Therefore, $u=\frac{9}{t}-\frac{1}{2} a t$ .

So, in Emily’s physics class, she got $u=\frac{9}{t}-\frac{1}{2} a t$ .

7 0

3 years ago

Solve the following problems:

liq [111]

Answer:

Q1. 42 liters
Q2. Php. 330

Step-by-step explanation:

Question 1

<u>Use ratios to solve:</u>

12/100 = x/350
x = 12*350/100
x = 42 liters

Question 2

1 basket → 5 1/2 kg ⇒ 2 baskets → 2(5 1/2) = 11 kg
1 kg → 30 ⇒ 11 kg → 11*30 = 330

Mutya earned Php. 330

4 0

3 years ago

(02.01 LC)

denis-greek [22]

Answer:

Step-by-step explanation:

4 0

3 years ago

M∠3 + m∠6 =180° True or False?

Natali5045456 [20]

Answer:

False. Because it is the answer.

8 0

3 years ago

Read 2 more answers

20 POINTS!!

Tasya [4]

20^2 + 21^2 = 27^2
400 + 441 = 729
881 = 729 (does not equal)

Not a right traingle

4 0

3 years ago

Read 2 more answers