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Ad libitum [116K]
3 years ago
13

Math is extremely confusing

Mathematics
1 answer:
Tems11 [23]3 years ago
6 0

Answer;;;;

explained

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In a certain​ chemical, the ratio of zinc to copper is 4 to 15. A jar of the chemical contains 750 of copper. How many grams of
nataly862011 [7]

Answer: it contains 200 grams of zinc.

Step-by-step explanation:

Ratio of zinc to copper is 4 to 15 = 4;15

Total ratio = 4+15= 19

We first find amount of both zinc and copper( the whole chemical)  which is equal to

ratio of copper / total ratio  x (the entire chemical--total grams of zinc and copper) =amount of copper

15/19 x X = 750

X= 750 X 19 / 15= 950 grams

To find amount of zinc in the chemical = ratio of zinc / total ratio x total amount of chemical

=4/19 x 950

=200 grams

3 0
3 years ago
What kind of cup that doesn't hold water​
Elena L [17]

Step-by-step explanation:

cupcake that doesn't hold the water.

7 0
3 years ago
Read 2 more answers
An aircraft flying at an average speed of 770 km/h takes 15 hours to complete a journey. Find the time taken for the aircraft to
Hoochie [10]
We can solve it two ways, we´ll do it via physics:
We know that:
d=vt
d=770km/h*15h
d=11550km
Now at 660km/h:
t=d/v
t=11550km/660km/h
t=17,5h
Math way:
770km/h→15h
660km/h→x
So:
(770*15)/660=x
x=17,5h
8 0
3 years ago
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Please help I’ll give brainliest
il63 [147K]

Answer:

2 is the base

Step-by-step explanation:

2^3

2 is the base and 3 is the exponent

6 0
3 years ago
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What number is 13% of 52
MaRussiya [10]
13 \% \ of \ 52= \frac{13}{100}*52= 13*0.52= \boxed{6.76}
7 0
3 years ago
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