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e-lub [12.9K]
2 years ago
7

Pl help it’s for a grade I will give you Brainly if right

Mathematics
2 answers:
rodikova [14]2 years ago
8 0

Answer:

b

Step-by-step explanation:

leonid [27]2 years ago
7 0

Answer:

It is the last option.

Step-by-step explanation:

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A person 44​-ftft tall casts a shadow 1313​-ftft long. at the same​ time, a nearby tree casts a shadow 3434​-ftft long. find the
3241004551 [841]
The ratio of height : shadow =44/1313

Therefore height of the tree,x=3434*(44/1313)
=115.08 ft

If you meant 13 and 34 as the length of shadows respectively, then also x=115.08 ft
6 0
3 years ago
Moby sold half his toy car collection, and then bought 12 more cars the next day. He now has 48 toy cars. How many cars did he h
castortr0y [4]

Answer: 72 cars.

Step-by-step explanation:

Let be "x" the number of toys that Moby had to start with.

According to the information given in the exercise, Moby sold half his toy car collection. This can be represented with the following expression:

\frac{1}{2}x

Then he bought 12 more cars, giving a total amount of 48 toy cars.

Therefore, the equation that represents this situation is the equation shown below:

x-\frac{1}{2}x+12=48

Now you must solve for "x" in order to find its value.

You get that this is:

\frac{1}{2}x+12=48\\\\\frac{1}{2}x=48-12\\\\\frac{1}{2}x=36\\\\x=(36)(2)\\\\x=72

7 0
3 years ago
Kareem ran three times last week. Here are the distances he rall
EleoNora [17]

Simply add the three decimals to find Kareem's total distance.

1.6 + 11.5 + 15 = 28.1

(0.6 + 0.5 = 1.1, 1 + 11 + 15 = 27, 27 + 1.1 = 28.1)

<h2>Answer:</h2>

<u>Kareem ran </u><u>28.1 km</u><u> on those three days.</u>

I hope this helps :)

8 0
2 years ago
Solve the equation.<br> у+ 3 = -у +9<br> y=1<br> y= 3<br> y= 6<br> y= 9
Anna007 [38]
The first y equals -3 and the second y equals -9
8 0
3 years ago
two pumps of different sizes, working together, can empty a fuel tank in 3 hours. the larger pump can empty the tank in 4 hours
bonufazy [111]
Suppose the larger pump alone can empty the tank in L hours, and the smaller pump can finish the job in S hours, then each hour the large pump empties 1/L portion of the tank, and the small pump empties 1/S per hour
Working together for three hours, they empty the whole tank, which is 100% of it, so 3/L+3/S=100%=1
Larger pump can empty the tank in 4 hours less than the smaller one, so L=S-4
replace L: 3/(S-4)+3/S=1
Make the denominator the same to solve for:
3S/[S(S-4)] +3(S-4)/[S(S-4)]=1
(3S+3S-12)/[S(S-4)]=1
(3S+3S-12)=[S(S-4)]
S^2-10s+12=0
use the quadratic formula to solve for S
S is about 8.6
The answer is not whole hour. 


8 0
3 years ago
Read 2 more answers
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