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dolphi86 [110]
2 years ago
10

Bob and rob in ratio 3:4 and their age 4 years ago was 5:7 find their ages

Mathematics
1 answer:
Trava [24]2 years ago
6 0

Answer:

Present Day:

Bob:Rob:Difference

 3   :  4  :        1

 6   : 12  :       2

4 years ago:

Bob:Rob:Difference

    5 : 7 : 2

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What is the line slope
Genrish500 [490]
Answer number one : 1/6
3 0
3 years ago
Read 2 more answers
Jacob used 1/7 of a liter of water to fill 1/9 of the fish aquarium. How many liters of water are needed to fill the aquarium?
laila [671]
Jacob used 1/7 of a liter of water.
He needs to fill 1/9 of the fish aquarium.
Find how many liters would Jacob need to fill the aquarium
=> Let x = liters of water need to fill the aquarium
=> x/1 = 1/7 divided by 1/9
=> x = 1/7 x 9/1
=> x = 9/7, since this is an improper fraction, let’s convert it to mixed fraction
=> x  = 1 and 2/7
So, Jacob need 1 and 2/7 liter of water to fill the whole aquarium.



3 0
3 years ago
What is the common ratio between successive terms in the sequence 1.5, 1.2, 0.96, 0.768
Pani-rosa [81]

Answer:

To determine the common ratio of a geometric sequence. You just need to divide any two consecutive terms on it. You can see below that all of them have the same quotient.

1.2 / 1.5 = 0.8

0.96 / 1.2 = 0.8

0.768 / 0.96 = 0.8

.

Decimal form = 0.8

Fraction form = 4/5

.

Check:

1.5 x 0.8 = 1.2

1.5 x 4/5 = 6/5 = 1 1/5 = 1.2

Therefore, the common ratio between successive terms in the sequence? 1.5, 1.2, 0.96, 0.768 is 0.8 or 4/5.

6 0
3 years ago
What are the domain and range of the function f(x) = (1/5)^x<br>I just guessed on edge, its B
Alex_Xolod [135]
It’s probably B because the domain is all real numbers
6 0
3 years ago
15 POINTS!!! PLEASE HELP ASAP! WILL MARK BRAINLIST!
olga nikolaevna [1]

Answer:

136

Step-by-step explanation:

hyo^2=opp^2+adj^2

x^2=6^2+10^2

x^2=36+100

x^2=136

x=

\sqrt{136}

5 0
2 years ago
Read 2 more answers
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