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Otrada [13]
3 years ago
14

Need help please, thanks!

Mathematics
1 answer:
MakcuM [25]3 years ago
4 0
Given:
1 inch : 18 kilometers

Let us use the ratio and proportion method:

a:b = c:d where ad = bc

0.8 inches is <u>14.4 kilometers</u>

1 : 18 = 0.8 : x
x = 0.8 * 18
x = 14.4 km

1.4 inches is <u>25.2 kilometers</u>

1: 18 = 1.4 : x
x = 18 * 1.4
x = 25.2 km

2.1 inches is <u>37.8 kilometers</u>

1 : 18 = 2.1 : x
x = 18 * 2.1
x = 37.8 km

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BigorU [14]
To find the answer divide 45 by to find the rate per hour. The rate per hour will be $22.5. Multiply this by 15 and your answer will be $337.5
3 0
3 years ago
Find three consecutive odd integers such that the sum of the first is two less than the second,and three more than the third is
Lunna [17]

Answer:

the three consecutive odd integers are 9, 11, and 13.

Step-by-step explanation:

Let's say that the first odd integer is x. The second consecutive odd integer would have to be x+2. (It would not be x+1  because that would result in an even integer. The sum of any two odd numbers is even.) The third consecutive odd integer would be (x+2) +2 or x+4.

The sum of the first, twice the second, and three times the third can be written as:

x+2(x+2)+3(x+4)

This equals 70. We can now distribute and solve for x:

x+2(x+2)+3(x+4)=70

x+2x+4+3x+12=70(distribute)

6x+16=70(combine like terms)

6x=54(subtract 16 from both sides)

x=9(divide by 9)

Thus, the three consecutive odd integers are 9, 11, and 13

hope this helps :)

4 0
3 years ago
Read 2 more answers
Find the surface area of a rectangular prism that is 16 inches long, 12 inches wide, and 5 inches high.
PolarNik [594]
The correct answer is A 
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3 years ago
What is the value of the expression 4+(-2)<br> -3+3
ASHA 777 [7]

Answer:?

Step-by-step explanation:

8 0
3 years ago
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Can someone please help me with math.
Drupady [299]

Step-by-step explanation:

7, 4+2×12÷6-8=0

8, 9÷3+6×2=15

9, 3+4-6+2×35=71

12, 3/5 - 1/3= 4/15

The others one I'm not too sure!!

8 0
3 years ago
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