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3 years ago

-11-7= please help me

Mathematics

1 answer:

Oxana [17]3 years ago

6 0

The answer would be -18. Hope this helps!

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sergey [27]

Honestly this gave me chills, ty for doing this <333333

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3 years ago

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Giovanni had seven rows of trading cards each row had five cards then he added three new cards how many cars are there altogethe

natali 33 [55]

Your answer is 38 because 7x5+3 is 38.

4 0

3 years ago

What are the coordinates of the point on the directed line segment from (−6,8) to (6,−7) that partitions the segment into a rati

Maslowich

Answer:

(2, -2)

Step-by-step explanation:

The difference of coordinates is ...

(6, -7) -(-6, 8) = (12, -15)

The point of interest is located 2/(2+1) = 2/3 of this distance from the first point. So, the point of interest is ...

first point + 2/3 distance

= (-6, 8) + (2/3)(12, -15)

= (-6, 8) + (8, -10)

= (2, -2)

_____

In symbolic terms, the point P that is 2/3 of the distance from A to B is ...

P = A + (2/3)(B -A) = (1/3)A +(2/3)B

P = (A +2B)/3

Filling in the coordinate values, we find ...

P = ((-6, 8) +2(6, -7))/3 = (-6+12, 8-14)/3 = (6, -6)/3

P = (2, -2)

4 0

4 years ago

Tim is running a distance of 30 city blocks. Each block is the same length. It took him 6 minutes to run 10 blocks. At the same

mestny [16]

10 blocks = 6 min

30 blocks = 18 min

You can answer this because you know that 10 x 3 is 30, so if if the number of blocks tripled then the amount of time should triple as well because he's running at the same rate.

8 0

3 years ago

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A grocery store bought some mangoes at a rate of 5 for a dollar. They were separated into two stacks, one of which was sold at a

Alexus [3.1K]

Answer:

The ratio of the number of mangoes in the $3 stack to those in the $6 stack is 1 : 2

Step-by-step explanation:

Let the number of mangoes bought by the grocery store be n. Also let the number of mango sold for $3 in one stack be x and the number of mango sold for $6 in the second stack be y.

Therefore:

x + y = z (1)

Also, the mangoes was sold at break even price, that is the cost of the mango and the price it was sold for was the same. Therefore:

Cost of buying = Price it was sold for

The cost of the mango = 5z and the price it was sold for = 3x + 6y

3x + 6y = 5z (2)

Substituting z = x + y in equation 1

3x + 6y = 5(x + y)

3x + 6y = 5x + 5y

6y - 5y = 5x - 3x

y = 2x

x / y = 1/ 2 = 1 : 2

The ratio of the number of mangoes in the $3 stack to those in the $6 stack is 1 : 2

8 0

3 years ago