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Ad libitum [116K]
3 years ago
10

12. Determine which ratio forms a proportion with 15/8 by using cross products.

Mathematics
2 answers:
Xelga [282]3 years ago
6 0

Answer to 12: C.

Explanation: By dividing 60 by 15 you get 4 and by dividing 32 by 8 you get 4. 15 and 8 both go into it evenly so that is the answer.

Answer to 14: B

Explanation: when you divide 236.25 by 7 you get 33.75 and then multiply that by 2 and you get 67.7 so you know 2 fluid ounces of milk contain 67.7 mg of calcium

sorry i couldnt answer  13


m_a_m_a [10]3 years ago
6 0

Answer:

<h3>12.</h3>

Ratios that can form a proportion with 15/8 are those that are equivalent fractions. In this case, 60/32 can form a proportion with 15/8, because they are equivalent, if we simplify 60/32 we would have 15/8, because 60/4=15 and 32/4=8.

Therefore, the right answer is C.

<h3>13.</h3>

Here we apply the same definition, a proportion is an equality between two fractions. In this case, the ratios that can form a proportion are A. 9/45, 8/40, because both fractions are equivalent to 0.2.

<h3>14.</h3>

To solve this problem, we can apply the rule of three, if 7 ounces of milk provides 236.25 milligrams of calcium, how many ounces of milf would provide 67.5 milligrams of calcium.

67.6 \ mgCa\frac{7 \ oz}{236.25 \ mgCa}= 2.00 oz

Therefore, the right answer is B.

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inna [77]

Answer:

1) 2002

2) 92

Step-by-step explanation:

1)

First, you need to find the area of the triangular base. The height of the triangle is 7, and the base is 26, meaning that the area is 7*26/2=91. Multiplying this by the length of the prism, you get 2002 cubic meters.

2)

First, you need to find the area of the trapezoidal base. The two bases of the trapezoid have lengths 12 and 11, while the height is 8, meaning that the area is 8*(12+11)/2=92 cubic centimeters.

Hope this helps!

8 0
3 years ago
Three ladders measure 5 3/4 meters, and 7 1/4 meters in length. What is the difference between the longest and shortest lengths?
Dovator [93]
7 1/4 - 5 3/4= 1 1/2 because you can either 1) change it into decimals: 7.25-5.75 and do simple subtraction or... 2) u can change the 7 to a 6 and add 4 to the numerator of 1/4 making the equation 6 5/4 - 5 3/4 = 1 2/4 which simplified to 1 1/2 I hope I didn’t confuse you! :))
3 0
3 years ago
18
nydimaria [60]
I don’t know the answer
5 0
3 years ago
I = PRT/100
ohaa [14]

Answer:

75

Step-by-step explanation:

I = PRT/100

Substitute the values

in

I = 500 * 5 * 3 /100

I = 75

5 0
2 years ago
Read 2 more answers
Write 0.08 as a decimal and fraction
Luba_88 [7]
0.08 is already a decimal.

As a fraction it is 2/25
5 0
3 years ago
Read 2 more answers
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