Six friends were making a pattern. each friend had 2 blue blocks and 3 red blocks. they used all their blocks in the pattern.
how many blocks did they use in all?

a. 5

b. 11

c. 24

d. 30

e. 36

D. 30

Step-by-step explanation:

Given;

Number of friends = 6

Number of blue blocks each friend has =2

Number of red blocks each friend has = 3

We need to find Total number of blocks used in all.

Solution:

we know that they used all their blocks to make the pattern.

First we will find total number of blocks each friend has.

Total Number of blocks each friend has is equal to sum of Number of blue blocks and Number of red blocks.

Framing in equation form we get;

Total Number of blocks each friend =

Now Total Blocks used is equal to product of number of friends and total number of blocks used by each friend.

Framing in equation form we get;

Total number of blocks used =

Hence They used 30 blocks to make the pattern.

3.4 pizzas

step-by-step explanation:

given is a scatter plot showing number of pizzas sold during weeks for different issues of coupon

y represents number of pizzas sold and x number of coupons issued

y is marked verticaly and x horizontally

the trend line is given as

y =3.4x+43

this says that even when no coupon is issued pizzas sold will be 43

and rate of change of pizza sold for 1 unit of coupon = slope = 3.4

i.e. when x increases by 1 unit y increases by 3.4 units

hence for each additional coupon issued 3.4 pizzas more will be sold