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aliya0001 [1]
3 years ago
11

If anyone can help me solve one of these equations, I will truly appreciate it!

Mathematics
1 answer:
bija089 [108]3 years ago
3 0
Photo math gal, it works
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Five years ago, Victor was twice as old as his daughter Anika. In 10 years, the sum of their ages will equal 90. Find their ages
frozen [14]

Answer: 45 and 25

Step-by-step explanation:

Given

Five years ago victor was twice as old as his daughter

Suppose the current age of victor and his daughter are x and y

For five years ago

\Rightarrow (y-5)=2(x-5)\\\Rightarrow y-5=2x-10\\\Rightarrow y=2x-5\\\Rightarrow 2x-y=5\quad \ldots(i)

In 10 years sum of their ages is 90

\Rightarrow (y+10)+(x+10)=90\\\Rightarrow x+y=70\quad \ldots(ii)

On solving (i) and (ii) we get

\Rightarrow x=25,y=45

So, the current age of victor is 45 and his daughter is 25

8 0
2 years ago
Which expression gives the volume of a sphere with radius 4
alisha [4.7K]

Area = 4*pi*r^2

Step-by-step explanation:

You can use this step to find the answer

<em>hope </em><em>it</em><em> helps</em><em> you</em><em>.</em><em>.</em><em>.</em><em> </em><em>pls </em><em>mark</em><em> brainliest</em>

7 0
2 years ago
Read 2 more answers
PLEASE ANSWER WILL MARK BRAINLIEST!!
sdas [7]

Answer:

  a) 7/10

  b) 1/6

Step-by-step explanation:

a) There are 10 ways to roll a 5 or less. Of those, 7 are greater than 3.

(die 1)(die 2) ∈ {11, 12, 21, 13, 22, 31, 14, 23, 32, 41}

  p(>3 | ≤5) = 7/10

__

b) Of the 36 possible outcomes of rolling two dice, there are 6 ways to have a 6 and an odd number:

  {16, 36, 56, 61, 63, 65}

The probability of interest is 6/36 = 1/6.

5 0
3 years ago
Is 4/12 more or less than 4/6?
lorasvet [3.4K]

Answer: Less

Step-by-step explanation:

If you break down each fraction into a decimal form you will get,

4/12 <em>= </em>0.33

4/6<em> = </em>0.66

Making <u>4/12</u> less than 4/6.

4 0
2 years ago
Read 2 more answers
How long (to the next whole year) will it take
fomenos

Step-by-step explanation:

2x = x1.2^n

2 = 1.2^n

log1.2(2) = n

log10(2)/log10(1.2) = n = 3.801784017...

so, rounded to the next whole year it takes 4 years.

6 0
2 years ago
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