Answer:
They should increase their price by $28.
Step-by-step explanation:
First find out what 35% of 80 is. Do so by multiplying 80 by 35% in its decimal form - .35.
80*.35=28.
This means that they have to increase their price by at least 28 dollars to make a profit.
The new price of the instrument should be $108 - $80 increased by 35%.
Hope this helps :)
Hi there!
3c + 2d = 2 for d = 4
3c + 2(4) = 2
3c + 8 = 2
Subtract 8 to both sides
3c + 8 - 8 = 2 - 8
3c = -6
Divide both sides by 3
3c/3 = -6/3
c = -2
I hope I helped!
0.4286 would be the decimal
Answer:
1)
90g strawberry jelly
6 sponge fingers
315ml custard
135g tinned fruit
2) 260 cm²
Step-by-step explanation:
1) 120/4 × 3
90g strawberry jelly
8/4 × 3
6 sponge fingers
420/4 × 3
315ml custard
180/4 × 3
135g tinned fruit
2) area = base × height
= 20 × 13
= 260 cm²
Let x and y be the 2 integers.
Then x = 4y - 2
and xy = 90
Substitute for x in the second equation:-
(4y - 2)y = 90
4y^2 - 2y - 90 = 0
2y^2 - y - 45 = 0
(2y + 9)(y - 5) = 0
so y = 5 ( as it is an integer)
and x = = 90/5 = 18
Answer:- The 2 integers are 5 and 18.
