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torisob [31]
2 years ago
7

My age is the difference between twice my age in 4 years and twice my age 4 years ago how old am I?

Mathematics
1 answer:
Llana [10]2 years ago
6 0

Answer: 16

Step-by-step explanation:

let a = your present age

a = 2(a+4) - 2(a-4)

a = 2a + 8 - 2a + 8

a = 2a - 2a + 8 + 8

a = 16 yrs is your age

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Yuki888 [10]
The correct answer is A and D
8 0
2 years ago
One-half of a number,<br> increased by 69 is 74.<br> What is the number?
Klio2033 [76]

Answer:

10

Step-by-step explanation:

let the number be n then half the number is \frac{1}{2} n , so

\frac{1}{2} n + 69 = 74 ( subtract 69 from both sides )

\frac{1}{2} n = 5 ( multiply both sides by 2 to clear the fraction )

n = 10

Thus the number is 10

6 0
2 years ago
Read 2 more answers
PLZ HELP! WILL GIVE BRAINLIEST!! PLZ SOLVE QUICK!!
Ede4ka [16]

Answer/Step-by-step explanation:

1. m<UTV = m<RTS = 85°

Reason: Definition of vertical angles.

Vertical angles are congruent to each other. m<UTV and m<RTS are vertical angles pair.

2. m<R + m<S + m<RTS = 180°

Reason: sum of interior angles of a ∆.

3. 3x + 2x + 85° = 180°

Reason: Substitution

4. x = 19

Reason: Algebra

Solving the equation algebraically, we would have the following:

3x + 2x + 85° = 180°

Add like terms

5x + 85 = 180

5x = 180 - 85 (subtraction property of equality)

5x = 95

Divide both sides by 5

x = 19

6 0
2 years ago
A gym membership is offered in January for 29.00 per month. If you pay upfront for the year you save 20% discount. How much mone
lukranit [14]

Answer:

$69.60

Step-by-step explanation:

A gym membership is offered in January for $29.00 per month.

Monthly payment:

\$29\cdot 12=\$348

Upfront payment:

If you pay upfront for the year you save 20% discount, then you'll save 20% of $348 that is

\$348\cdot 0.2=\$69.60

8 0
2 years ago
What is -6+2(-2+8v-6v (what are the steps to it too?)
MAXImum [283]
-6-4+16v-12v
It is 4v-10
7 0
2 years ago
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