Answer:
a) y = -5 b) y = -4 c) y = 4 d) y = 11
Step-by-step explanation:
a) (-2+2)²-5
b) (-1+2)²-5
c) (1+2)²-5
d) (2+2)²-5
Let's call the number of rows 'R' . (Clever ?)
There are (3x -2) trees in each row, and there are 'R' rows,
so the total number of trees is [ R times (3x-2) ].
But the problem told you that the total number of trees is (24x-16).
So
R(3x - 2) = (24x - 16)
For a quick, happy ending, how about factoring '8' out of the right side:
R(3x - 2) = 8(3x - 2)
Is it jumping out at you yet ?
If not, then divide each side by (3x - 2) :
<em> <u> R = 8</u></em>
There are eight (8) rows of trees.
Good evening
Answer:
<em>a) the cost of one apple is €</em><em>0.9</em>
<em>b) the cost of one pineapple is €</em><em>5.4</em>
<em>c) the cost of two pineapples and six apples is €</em><em>16.2</em>
Step-by-step explanation:
Consider P the price of a pineapple
A the price of an apple
A pineapple costs six times as much as an apple means P = 6A
Mum paid €7.20 for one pineapple and two apples means P + 2A = 7.20
then
6A + 2A = 7.20
then
8A = 7.20
then
A = €0.9
Since P = 6A then P = 6×(0.9) = €5.4
the cost of two pineapples and six apples
= 2P + 6A
= 2P + P
= 3P
= 3×(5.4)
= €16.2
80%= .80
of means times
decrease means to subtract
75 x ,80= 60 students lost
75-60= 15 students left
hope this helps
Mean: The sequence adds up to 385 divided by 55 numbers in the set to get the mean of 7.
Median: The middle value of the sequence in order is 7.
Mode: 10 (It’s obvious because there’s ten 10’s.)
