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Musya8 [376]
3 years ago
7

Guy wants to swim 500 meters. After 75 meters, he takes a break. What percent of his goal has he already met?

Mathematics
1 answer:
iren2701 [21]3 years ago
4 0
To determine this, we need to set up proportions.
x/100 = 75/500.
A quick way to find x, the percentage we're looking for, is to cross multiply our fractions.
100 x 75 and 500 with x.
75 x100 = 7500, and 500 times x is 500x.
7500=500x
Divide by 500 on each side.
15 = x
Your answer is C.)15%.
I hope this helps!
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The ratio of rock music to total CDs that ella owns is 25/40. Paolo has 50 rock music CDs. The ratio of rock music to total CDs
qaws [65]
They own a total of 120 CDs.

GIVEN:
Ella: ratio of rock music to total CDs that she owns 25/40
Paolo: has 50 rock music CDs. The ratio of rock music to total CD is equal to Ella's ratio.

Proportion: a/b = c/d where ad = bc

25/40 = 50/x
25x = 40 * 50
25x = 2000
25x / 25 = 2000 / 25
x = 80  total of Paolo's CDs

Total of Ella's CDs       =  40
Total of Paolo's CDs   =<u>  80</u>
Total CDs in all               120


5 0
3 years ago
How to find slope and y intercept 6x-5y=15?
iogann1982 [59]
We need to put this equation in y = mx + b form because in this form, the slope will be in the m position and the y intercept will be in the b position. So basically, we solve for y.

6x - 5y = 15 ....subtract 6x from both sides
-5y = -6x + 15...divide both sides by -5
(-5/-5)y = (-6/-5)x + (15/-5)...simplify
y = 6/5x - 3

y = mx + b...remember, m is ur slope and b is ur y int
y = (6/5)x + (-3).....ur slope(m) = 6/5 and ur y int (b) = -3
7 0
3 years ago
Lines c and d are parallel lines cut by transversalp.
Bezzdna [24]

Answer:

\angle 2 \cong \angle 6

Step-by-step explanation:

The only pair of corresponding angles in the choices is angles 2 and 6.

Answer:

\angle 2 \cong \angle 6

8 0
3 years ago
On each of 3 days Derrick rode 6.45 km to school 150 meters to the library and then 500 m back home how many km did he ride for
KengaRu [80]
Derrick rode 21 total km. 

You can find this by adding the 3 distances together and multiplying by 3. Also remember to watch the units as 500m = .5km. 
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3 years ago
-286 divided by 457.6 what is the quotient?
kompoz [17]
The quotient is -0.625
3 0
3 years ago
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