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Tresset [83]
3 years ago
6

What is the answer for this question -12(-3)+7

Mathematics
1 answer:
julsineya [31]3 years ago
7 0
-12(-3) + 7

First, simplify 12 × (-3) to get -36. / Your problem should look like: 36 + 7
Second, add 36 + 7. / Your problem should look like: 43

Answer: 43

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3.If the ratio of lynx to mountain lions and wolverines in the park is 2:3:1.So for every 2 lynx, there are 3 mountain lions and
Zolol [24]
A.  The ratio of lynx to mountain lions to wolverines is 2:3:1.

Thus, there are 2 lynx in the ratio.  If there were 6 lynx, we would have to multiply all of the numbers in the ratio by 3 (because 6/2 = 3) to keep the ratio in the same proportion.  

Therefore, because there is 1 wolverine in the ratio, and 1 * 3 = 3, if there were 6 lynx, there would be 3 wolverines.

b. We can use the same ideas that we had in part a to help us in part b.
There are 3 mountain lions in the ratio, but there are 15 mountain lions in the problem.  Thus, the multiplier is 5, because 15/3=5.

Therefore, because there are 2 lynx in the ratio, and 2*5 = 10, if there were 15 mountain lions, there would be 10 lynx.

c.  There is one wolverine in the ratio, but there are 10 wolverines in the problem.  Thus, the multiplier is 10, because 10/1 = 10

Therefore, because there are 3 mountain lions in the ratio, and 3 * 10 = 30, if there were 10 wolverines in the park, then there would be 30 mountain lions.

d.  The total number of lynx, mountain lions, and wolverines is 30.
To find out how many of each animal there should be, we must make an equation using the ratio and the variable x. 

2x + 3x + 1x = 30

This equation means that the total number of animals together is 30, which is true.  Now let's simplify by combining like terms.

6x = 30

Finally, we can simplify by dividing both sides by the coefficient of x, or 6.

x = 5

Thus, going back to our original equation, we know that the amount of lynx is 2x, mountain lions is 3x, and wolverines is 1x.

Lynx = 2x = 2(5) = 10 lynx
Mountain Lion = 3x = 3(5) = 15 mountain lions
Wolverines = 1x = 1(5) = 5 wolverines

Hope this helps! :)

7 0
4 years ago
Kate baked a rectangular cake for a party she used 42 inches of frosting around the edges of the cake if the cake was 9 inches w
Leno4ka [110]
9 + 9 = 18
42 - 18 = 24
24 / 2 = 12
the length is 12 inches
7 0
3 years ago
330% of 21 is what number?
kotykmax [81]

Answer: 69.3

Step-by-step explanation:

4 0
4 years ago
I need help on this question
Sauron [17]

One would ordinarily expect to see such data plotted on a line graph with time (in days) on the horizontal axis and plant height on the vertical axis.

There are a number of other ways it could be done. For example, a bar chart with the height of each bar representing the height of the plant. The botanist could also use something similar where the bar is drawn as a representation of the plant, or where a plant pictorial of a given size is used to represent a specific height. (3 1/2 feet may be represented by 3 full-size icons and 1/2 of another icon stacked on top of each other, for example.)

5 0
3 years ago
Does anyone have a word problem idea for this equation 1.25x = 0.75x + 50
PSYCHO15rus [73]

Answer: Keke, do you love me? Are your riding?



Idk either.


Tips: make it something about money, and the k should stand for kittens

5 0
4 years ago
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