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ruslelena [56]
3 years ago
6

Sara has a son and a daughter – Billy and Jane. Billy is five times as old as Jane. Their mother is now three times as old as Bi

lly, and in 2 years she will be eight times as old as Jane. Find the present age of the mother.
Please solve and show ur work. If u do, I will make u brainliest (if u r correct)

PLEASE HELP
Mathematics
1 answer:
sleet_krkn [62]3 years ago
8 0

Answer:

30 years old.

Step-by-step explanation:

Here's what we know.

B=5J

M+2=8J+16

M=3B

So now let's solve using substitution.

M+2=8J+16

M=8J+14

But we know that M=3B

3B=8J+14

And we know B=5J

3*5J=8J+14

15J=8J+14

7J=14

J=2

Now, we can plug it into the M+2=8J+16

M+2=2*8 +16

M+2=16+16

M+2=32

M=30

Hope you enjoyed.

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What is 320 times 10^2 equal
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Answer:

Step-by-step explanation:

10^2=100

320×100=32000

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Pls help me!!
vlada-n [284]

Answer:

<h3>Q1</h3>

The graph of y = f(x), has vertex at (1, -2)

<u>The vertex of a function f(x - 3) is going to be:</u>

  • (1 - 3, -2) = (-2, -2)
<h3>Q2</h3>
  • <em>The graph of y = f(x) has the line x = 5 as an axis of symmetry. The graph also passes through the point (8,-7). Find another point that must lie on the graph of y = f(x).</em>

The axis of symmetry is at the same distance from the symmetric points.

x = 5 is a vertical line. The point (8, -7) is 3 units to the right. So the mirror point will be 3 units to the left and have same y-coordinate: x = 5 - 3 = 2

The point is (2, -7)

<h3>Q3</h3>

The graph in blue is the translation of the red to the left by 2 units.

<u>So the equation is:</u>

  • y = f(x + 2)
<h3>Q4</h3>

y = h(x) is graphed

  • h(7) = 5
  • h(h(7)) = h(5) = -1
<h3>Q5</h3>

The graph of the function y = u(x) given

This is a odd function.

The coordinates of u(x) and u(-x) add to zero because u(-x) = -u(x)

<u>Therefore:</u>

  • u(-2.72) + u(-0.81) + u(0.81) + u(2.72) =
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3 years ago
Rearrange the equation so a is the independent variable.<br><br> 3a-7= -4b+1<br><br> Please help! :)
Aleksandr-060686 [28]

Answer:

Hiii the answer would be a= -4b+8/3

7 0
3 years ago
Help me please asap
LiRa [457]

Answer:

x = 20

Step-by-step explanation:

AE is an angle bisector, which means it cuts that triangle into 2 equal halves. So this means ∠BAE and ∠EAC should be equal to each other.

Set them equal to each other and solve for x.

∠BAE = ∠EAC

x + 30 = 3x - 10

40 = 2x

x = 20

3 0
3 years ago
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