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Dmitriy789 [7]
2 years ago
12

Two friends practice taekwondo in the same class. The age of the older friend is three times that of the younger. The sum of the

ir ages is eight more than twice the age of the younger. Find the ages.
Mathematics
1 answer:
vampirchik [111]2 years ago
6 0

Answer:

4 and 12

Step-by-step explanation:

a = young

b = old

b = 3a, a+b =2a+8 => a = 4, b = 12

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What is the slope of a line perpendicular to the line with equation y = 5x – 2?
LekaFEV [45]

Answer:

- \frac{1}{5}

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = 5x - 2 ← is in slope- intercept form

with slope m = 5

Given a line with slope m then the slope of a line perpendicular to it is

m_{perpendicular} = - \frac{1}{m} = - \frac{1}{5}

4 0
3 years ago
Can someone help me out please I don’t get this
expeople1 [14]
I think the answer is three


i did 9x-1=-5x+41 and i got 3
8 0
3 years ago
What is the rounding or compatible sum of 18+53
Semenov [28]
71 is the answer. If you round it, it would be 70.
5 0
2 years ago
A local garden contains 1/12 lettuce, 3/12 carrots, 4/12 of corn and the rest red radishes. How much of the garden is radishes?
melamori03 [73]

Answer:

The answer to your question is a) 4/12    b) 5/12

Step-by-step explanation:

Data

Lettuce = 1/12

Carrots = 3/12

Corn = 4/12

Red radishes = ?

a)

The total of the garden is 12/12

Red radishes = 12/12 - 1/12 - 3/12 - 4/12

                      = 12/12 - 8/12

                      = 4/12

4/12 of the garden are red radishes.

b)

Corn of lettuce = 1/12 + 4/12

                         = 5/12

5/12 of the garden are corn or lettuce.

3 0
3 years ago
Z varies directly as x^3 and inversely as y^3. if z=59 when x=8 and y=8, find Z if x=3 and y=4
marissa [1.9K]

z=\dfrac{kx^3}{y^3}\\\\\\59=\dfrac{k\cdot 8^3}{8^3}\\k=59\\\\\\z=\dfrac{59x^3}{y^3}\\\\\\z=\dfrac{59\cdot 3^3}{4^3}=\dfrac{1593}{64}

8 0
2 years ago
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