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2 years ago

Select the correct answer.

Mathematics

2 answers:

topjm [15]2 years ago

5 0

C. $60. If 50% is 30, the other 50% is also 30. This would make 100% 60.

eduard2 years ago

4 0

If 30 is half price, then what is full price?

You can set up this problem like this:

30 = x/2

30 = (1/2)x

where x is the full price.

To solve, simply multiply each half by 2:

2(30) = 2((1/2)x)

x = $60

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15z + 3y = 21 Solve the formula for y

Sveta_85 [38]

Answer:
y = 2

Explanation: z must be equal to 1, and 3x2 is equal to 6. 15+6= 21

3 0

3 years ago

Read 2 more answers

Select the equation that most accurately depicts the word problem. Jim weighs 30 pounds less than Tom, and together they weigh 2

Amiraneli [1.4K]

n=toms weight

(n-30)=jims weight

and together they weigh 210

so it would be (n - 30) + n = 210

4 0

3 years ago

To solve the system of linear equations 3 x minus 2 y = 4 and 9 x minus 6 y = 12 by using the linear combination method, Henry d

seraphim [82]

Answer:

Step-by-step explanation:

Both lines have same slope so the graph of both equation will be same and hence it will overlap each other that is why the Henry could only see one line.

Step-by-step explanation:

Given : A system of linear equation 3x - 2y = 4 and 9x - 6y = 12

We have to show whey when Henry graphed the equations 3x-2y=4 and 9x-6y=12 he could only see one line.

Consider the given system of linear equation

3x - 2y = 4 ................(1)

9x - 6y = 12 ..................(2)

Since,

Equation (2) is multiple of equation (1),

3 × ( 3x - 2y = 4) = 9x - 6y = 12

Also the slope of given equations are same

For equation (1),

Differentiate with respect to x, we get,

3-2dy/dx = 0

dy/dx = 3/2

Also for equation (2),

Differentiate with respect to x, we get,

9 - 6dy/dx = 0

dy/dx = 9/6 = 3/2

Since, both lines have same slope so the graph of both equation will be same and hence it will overlap each other.

That is why the Henry could only see one line.

3 0

2 years ago

Think about what you already know about math and baking.

alekssr [168]

Answer:

1. So if you want to know how is math related to baking, I will show you how. Firstly, if you bake a cake, you'll all have to use some measurement, and if you calculate anything wrong or place the crazy amount, the cake you're trying to bake would turn out awful. That's where maths come to play. You would have to calculate ratios and much more, for example, one tee-spoon of sugar to 2 tee-spoons of water it's a 1:2 ratio of sugar to water. If you try to make double the amount of cake, then you'll all have to double the ratio, too, so the ratio will become 2:4, and that's how we would use math in baking a cake. If you for any reason put more than the required amount, the whole cake would be ruined like it might be too sugary, and you will have to retry and bake another one.

2. Yes indeed I've tasted a mess up the cake, and I think that the problem was that the cake batter was much sugary than I expected and that's why you guys have to calculate the perfect amount of ingredients, and that's how maths would help us in baking a cake

hope this helps you btw

Step-by-step explanation:

4 0

3 years ago

I NEED TO KNOW KNOW PLEASEEE

storchak [24]

Answer:

i think its 660 it could be wrong tho

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers