Answer:
£67.50
Step-by-step explanation:
On each metre of material, the shop makes a profit of ...
£6.90 -4.65 = £2.25
So, for 30 metres, the profit will total ...
30 × £2.25 = £67.50
A profit of £67.50 would be made on a 30-metre roll of material.
Answer:
-12
Step-by-step explanation:
Since we can subtract 12 from -2 and get -14, we might try subtracting 12.
Answer:
X=11
Step-by-step explanation:
(10x+30)=140
-30 both sides
10x=110
Divide 10 both sides
X=11
Answer:
495 meter²
Step-by-step explanation:
In the given kite QRST,
PQ = PS = 15 meter
QR = 17 meter
We have to find the area of the kite.
Since kite is in the form of a rhombus.
and rhombus is =
(Diagonal QS) × (Diagonal RT)
In Δ QRP,
17² = 15² + RP²

= √64 = 8 meters.
So RT = RP + PT = 8 + 25 = 33 meter.
Now area of kite =
(30) (33) = 495 meter²
Answer: 3. 4
4.
Step-by-step explanation:
8^2 + 12^3 = c^2
64 + 144 = c^2
208 = c^2
√208

The final answer is the square root of 208
8^2 + b^2 = 17^2
64 + b^2 = 289
-64 64
b^2 = 225
