geekgirl95

shanon needs 20g of 80% of gold to make a pendan. she has some 85% gold and some 70% gold, from broken jewelry and wants to know how much she should use. determine the quantity of each alloy that she should use.

in his spare time, kim likes to go cycling. he cycles partly on paved surfaces and partly off-road, through hilly and wooded areas. he cycles at 25km/hon paved surfacesand at 10 km/h off-road. one day, he cycled 41km in 2h. how far did he cycle off road?

april sells specialty teddy bears at various summer festivals. her profit for a week,P, in dollars, can be modelled by P= -0.1n^2 + 30n - 1200, where n is the umber of teddy bearsshe sells during the week. a.) According to this model, could april ever ear...

how would i get the domain and range of f(x)= sq.root of 3-x-4? pls. explain.

simplify: c-d/d-c

two angles in a triangle measure degreeand 38. the longest side is 24cm longer than the shortest side. write to explain how you would determine the length of the shortest side. can i use sin law or the cosine law.pls. explain..

pls. explain why there is no real number è that satisfies ither sinè=2 or cos è=2.

Triangle ABC has are 30cm^2, AC=9 cm and BC= 7cm. Calculate the measureof angle ACB and the larget possible length of AB.

2n Ca(OH)2= n HCl 2[c Ca(OH)2 v Ca(OH)2] = c HCl v HCl c Ca(OH)2= c HCl v HCl/2v Ca(OH)2 c Ca(OH)2= (0.158M)(32.40mL)/2(27mL) c Ca(OH)2= 0.111M pls. check if it's right:)

thanks :)

v1=c2v2/c1 v1= (0.2M)(200ml)/(6M) v1=6.67 ml HCl

thanks :)

thanks :)

how did yu get 107.75?

pls. explain

oh yeah thaNKS.:)