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mezya [45]
3 years ago
5

In 15 years lisa will be four times as old as she is now. how old is she now

Mathematics
1 answer:
Eva8 [605]3 years ago
5 0

Answer:

Lisa is 5 years old

Step-by-step explanation:

we can make an equation like

4x=15+x

X can represent Lisa’s current age

Now just solve for X

3x=15

x=5

And we can check

If Lisa is 5 years old now

In 15 years she would be 20

And 20 is 4 times as 5 which Is her current age

So Lisa is 5 years old now.

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Murljashka [212]

Answer:

Both ends go down

Step-by-step explanation:

If the degree is EVEN, both ends pint the same way. If it is ODD, they point in opposite directions. The negative sign means the equation is flipped over the x axis and both ends go down.

8 0
3 years ago
A landscaper makes a $2,000 profit in a week when he services 25 lawns. he makes a $600 profit in a week when he services 11 law
aleksandrvk [35]

Answer:

$3,100

Hope this helps!!

4 0
2 years ago
If someone could please just tell me how to do this that would help a lot. Suppose B is between A and C. Use the Segment Additio
lys-0071 [83]

Answer:

x=11

AB=45

BC=73

Step-by-step explanation:

AB+BC=AC, so...

4x+1+7x-4=118

Combine like terms

11x-3=118

Solve for x

11x=118+3

11x=121

x=11

Now put x in each equation

AB=4x+1=4(11)+1=44+1=45

BC=7x-4+7(11)-4=77-4=73

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4 0
3 years ago
16. Find the value of y. ​
devlian [24]

y + (2x -12) = 180 (since they are supplementary angles)

(2x-12) = 96 ( since they are alternate exterior angle)

2x = 96 + 12

2x = 108

x = 108/2

x = 54.

y+( 2x-12)=180

y+(2× 54 -12) = 180

y + (108-12) = 180

y + 96 = 180

y= 180-96

y = 84.

8 0
3 years ago
There are 8 action, 3 comedy, and 5 drama DVDs on a shelf. Suppose three DVDs are selected at random from the shelf. Find each p
nordsb [41]
8 action, 3 comedy, 5 drama....total = 16 dvd's

P(2 action, then a comedy)...without replacement

8/16 * 7/15 * 3/14 = (8 * 7 * 3) / (16 * 15 * 14) = 168/3360 = 1/20
4 0
3 years ago
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