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2234a<br />
1,890<br />
2234b<br />
0,845<br />
LÖSNINGAR DEL B<br />
2235a-b-c-d<br />
Antag att sidan i kvadraten är x m, omkretsen<br />
som vi kallar O blir då 4x<br />
2<br />
x = 125<br />
x = 125<br />
O = 4⋅ 125<br />
O = 44,7 m<br />
Svar Omkretsen är 44,7 m<br />
2238a<br />
x =<br />
2 38<br />
x =<br />
0,006<br />
2<br />
x = 6333,3<br />
x = 6333,3<br />
x = 80 km/h<br />
2<br />
0,006 38<br />
2327a<br />
1+ 0,25<br />
1, 25<br />
2328a<br />
230<br />
= 1,15<br />
200<br />
2329a<br />
(1,08 −1) ⋅ 100 =+ 8%<br />
2329d<br />
(0,80 −1) ⋅ 100 =−20%<br />
2330a<br />
6200 ⋅ (1+ 15/100)<br />
7130 kr<br />
2327b<br />
1− 0,35<br />
0,65<br />
2328b<br />
190<br />
= 0,95<br />
200<br />
2234c<br />
0,319<br />
2236a<br />
2<br />
A= π ⋅r<br />
2<br />
π ⋅ r = A<br />
2 A<br />
r =<br />
π<br />
A<br />
r =<br />
π<br />
136<br />
r =<br />
π<br />
r = 6,58 cm<br />
2327c<br />
1+ 0,0075<br />
1,0075<br />
2328c<br />
209<br />
= 1,045<br />
200<br />
2329b<br />
(1,45 −1) ⋅ 100 =+ 45%<br />
2329e<br />
(0,997 −1) ⋅ 100 =−0,3%<br />
2330b<br />
6200 ⋅(1− 5/100)<br />
5890 kr<br />
( sätt in värden)<br />
2234d<br />
0,845<br />
2236b<br />
2<br />
A= π ⋅r<br />
2<br />
π ⋅ r = A<br />
2 A<br />
r =<br />
π<br />
A<br />
r =<br />
π<br />
205<br />
r =<br />
π<br />
r = 8,08 cm<br />
2327d<br />
1− 0,026<br />
0,974<br />
2328d<br />
175<br />
= 0,875<br />
200<br />
( sätt in värden)<br />
2329c<br />
(1,045 −1) ⋅ 100 =+ 4,5%<br />
2329 f<br />
(0,45 −1) ⋅ 100 =−55%<br />
2331<br />
2800 ⋅ (1+ 14,5/100)<br />
3206 kr<br />
32
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