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vaieri [72.5K]
3 years ago
6

What is number 2 need help kinda confused

Mathematics
1 answer:
maxonik [38]3 years ago
7 0
Since 60 minutes are in 1 hour, we can do (0.08 km/1 min)*(60min/1 hour) and cross out the minutes, getting (0.08*60 km)/(1 hour)= 4.8km/1 hour. Since 1.61 kilometers are in 1 mile, we can multiply the equation by 1mile/1.61 km (since they are equal) and cross out the km to get 4.8*1.61miles/1 hour= \
7.728mi/1 hour. Since it's closer to 8 than 5, 3, or 2, D is right
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Identify the common factors of each set of numbers.<br> 1. 12 and 20<br> 2. 24 and 30
nevsk [136]

Answer:

The common factors of 12 and 20 are 4 and the common factors of 24 and 30 are 6.

Step-by-step explanation:

8 0
3 years ago
An alloy consists of nickel, zinc, and copper in the ratio 2:7:9. How many pounds of nickel have to be used to create alloy that
Hunter-Best [27]

We are given ratio nickel to zinc to copper = 2:7:9.

From this ratio we can see that <em>ratio of nickel to zinc is 2:7</em>.

Let us assume number of pounds of nickel have to be used to create alloy that contains 4.9 lb of zinc is x pounds.

So, we can setup a proportion as :

x : 4.9 =  2:7

Or

\frac{x}{4.9}=\frac{2}{7}

On cross multiplication, we get

7x= 4.9× 2

7x = 9.8

Dividing both sides by 7, we get

x = 1.4.

<h3>Therefore, 1.4 pounds of nickel have to be used to create alloy that contains 4.9 lb of zinc.</h3><h3 />
6 0
3 years ago
What is the y intercept of (-6, -5) when the slope is -2/3?
Alecsey [184]
X must be increased by 6 to get its value to be 0. Then the corresponding change in y will be (-2/3)*6 = -4. That value added to -5 makes it -9.

The y-intercept will be -9.

6 0
3 years ago
I don't understand what I have to do. HELP
Volgvan
Basically what you are doing is trying to find the square root of 8. What you need to do is find what would go into the number 8 equally so, you are basically finding the multiples
8 0
2 years ago
Express the fractions 1/2, 3/16, and 7/8 with an LCDA.8/16 3/16 14/16B. 1/4 3/4 7/4C. 1/32 3/32 732D. 4/8 6/8 14/8
NISA [10]
The least (or lowest) common denominator of 3, 16 and 8 is 16. That already points us to answer A.

Checking for each fraction:

1/2 * 8/8 = 8/16
3/16 * 1/1 = 3/16
7/8 * 2/2 = 14/16

Yep. Answer A.
3 0
3 years ago
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