earnings = $7 per hour
He needs at least $230 . This means he needs an amount greater than or equals to $230.
let
t = hour many hours he works
Therefore,
He needs to work approximately 33 hours or more to get at least $230 for his sterio. This means t is greater than or equals to approximately 33.
20% off
100-20=80
find 80% of 179
percent mean psarts ouf o 100
80%=80/100=0.8
'of' means mutipy
80% of 179=
0.8*179=143.2
saleprice=$143.20
Answer:
(-1,42)
Step-by-step explanation:
ahaha i got it wrong then it told me the actual answer
Answer:
Approximately 16.
Step-by-step explanation:
If you just divide 200/12.54, you get about 15.9 which rounds to 16.
The pyramid is shown in the diagram below.
The pyramid is built from four congruent triangles and one square as the base
We have the side of the square, so the area is = 10×10 = 100
We need the height of the triangle to work out its area. We can find out by using the height of the pyramid and half of the length of the side of the square.
Using the Pythagoras rule
Height of triangle =
Area of one triangle = 1/2×10×12=60
Surface area of the pyramid = 100 + (4×60) = 340 square inches
