Answer:
Assuming LCD means Lowest Common Denominator Assuming by "and" you mean adding the two
Well, you go by the multiples of 7; 7, 14, 21, 28, 35, 42, 49, 56, 63, 70 Multiples of 10; 10, 20, 30, 40, 50, 60, 70, 80, 90, 100 Straight away you can see the lowest common multiple is 70, Now to go about adding them, 2/7 * 10 (both sides) , 20/70 9/10 * 7 (both sides) , 63/70
Then you add the two; 20/70 + 63/70 - now we can add them because they share the same denominator 20/70 + 63/70 = 83/70 = 1 whole 13/70 (simplified)
The LCD is 70
Quick tip, to find a common multiple (not necessarily the lowest) multiply the two denominators.
Answer 2
Answer:
The least common denominator or LCD is 70 because for 10=10,20,30,40,50,60,70,80 7=7,14,21,28,35,42,49,56,63,70,77 and 70 is the least common denominator of 10 and 7 so 70 ims your answer
Rueben sells electronics. He earns a 5% commission on each sale he makes. If Ruben wants to make $100 in commission, what is the dollar amount of electronics he must sell? A.$105 B.$200 C.$2,000 D.$2,105
Answers
He must sell $200 worth of electronics.
200 x .5( 5%) = 100.
Two fifths of the fish in grays fish tank are guppies. One fourth of the guppies are red. What fraction of the fish in grays tank are red guppies?
Answers
it would be one fourth cause he tells you the fraction of how many guppies are red
I think it goes like this: 1/4 of 2/5= 2/20 or 1/10
It's asking what fraction are red guppies and it's telling us that 2/5 of the tank is made up of guppies and out of that 2/5, 1/4 of them are red. So you would have to figure out what 1/4 of 2/5 is to find out how many red guppies there are.
How do I solve this
Answers
Look at the picture.
21 is 70 % of what number?
Answers
21/x = 70/100 cross multiply and get 30
Its 30. 21----> 70% x------> 100%. You do: 100% times 21 divided by 70%.
I need the answers to the word problems.Can you please list them.Thank You!
Answers
its asking you about more than or less than
Use the signs to help you
Twelve pounds of beans are distributed equally into 8 bags to give out at the food bank. How many pounds of beans are in each bag