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GuDViN [60]
3 years ago
5

Alexandra is baby-sitting her little brother. To entertain him, she is building structures with his blocks. The picture below re

presents three of the structures that she has built.
What number pattern is suggested by the number of blocks used in this sequence of structures?

Mathematics
1 answer:
cricket20 [7]3 years ago
4 0

Answer:

she adds two blocks each time

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Tom can do a job in 4 hours while Sam can do it in 6 hours. How many hours would it take to complete this job if they work toget
Hunter-Best [27]

Answer:

12/5hours=2.4 hours

Step-by-step explanation:

Sam:6hours

Tom:4hours

This is a rate problem

Sam's rate is one job completed in 6 hours which is 1/6

Tom's rate is one job completed in 4 hours which is 1/4

Together, they could complete 1/4+1/6 of the job in y hours

We are trying to find the rate at which Sam and Tom could complete the job together, or one job in x days, for a rate of 1/y

1/4+1/6=1/y

The least common denominator is 12y

Multiplying through by the LCD which gives:

12y(1/4)+ 12y (1/6)= 12y (1/y)

3y + 2y=12

5y = 12

y=12/5 hours=2.4hours

Therefore it will take 12/5 hours or 2.4 hours to complete the job if they work together

4 0
2 years ago
use the model to solve 4 friends equally split in one half of a pound of candy how much will each friend get​
den301095 [7]
Model-? I don't see a model?-
3 0
3 years ago
Read 2 more answers
Of 10 test​ scores, eight are less than or equal to 82. What is the percentile rank of a test score of ​82?
sdas [7]

Answer:

80%

Step-by-step explanation:

Percentile rank = (number of scores lower or equal to 82 / total number of scores) * 100%

Percentile = (8 / 10) * 100%

= 0.8 * 100%

= 80%

5 0
3 years ago
One pound of candies costs $3.50. How much will we have to pay for 3 lb?
Romashka-Z-Leto [24]

Answer: 10.50 dollars


Step-by-step explanation:

3.50 x 3 = 10.50

8 0
3 years ago
A. 4,-4<br> B. 2,-5<br> C.0,6<br> D.-2,5<br> Which would it be?
kipiarov [429]

Answer:

A

Step-by-step explanation:

If we insert the original coordinates into the problem, we will find the answer.

(2+2, 1-5)

so, once solved

(4, -4)

remember, adding to X means moving the point right, subtracting to X means moving left.

Adding to Y means moving the point up, subtracting to Y means moving down.

6 0
2 years ago
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