Please help I do not understand

Answers

Answer 1

Answer: The answer is D LOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOL

Answer 2

Answer: The answer is D i think,

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Does the equation y= -1/x represent a direct or inverse variation?
Algebra 2 questions
What are all the factors of 12
~Please only answer if you know for sure~(State which answer goes to which question please) :)
Erica knits 18 squares on Monday. She knits 7 more squares each day for the rest of the week. How many squares does Erica have on Friday?

Archeologists have discovered a mummified corpse and they want to know how long ago she died. They determine that there is25% C14 in her body. Use the reference diagram to determine how long ago she died. Explain your answer.

Answers

Answer: The answer is 11,460.

Step-by-step explanation:

I don’t know the answer I’m just trying to complete the tutorial of Brainly

Aaron is 63 inches tall. In oder to ride a roller coster at a amusement park,a person must ne be at 5 feet tall. Is Aaron tall enough to ride a roller coster? How many inches shorter or taller is he the 5 feet ?

Answers

Yes, Aaron is tall enough to ride the roller coaster. 63 inches converts to five feet and three inches tall. Aaron is three inches taller than 5 feet.

Yes, Aaron is 5'3. He is tall enough to ride the roller coaster.

12 out of 18 students buy pizza for lunch on Fridays. At this rate if there are 240 students in the entire school, how many students can be expected to buy pizza for lunch this Friday?

Answers

160. This is because u take the total(240) divide it by 18 and multiply by 12.

however, you can also simplifiy the fraction (12/18) into (2/3) and divide by the bottom denominator (3) and multiply by the top numerator. ;)

Ralph is buying a lunch special for $6.50 which includes a sandwich, chips, 1pand a soft drink. If he want a dessert which costs $3.50. What would his
total cost be if he buys dessert? *

Answers

Add the two prices together:

6.50 + 3.50 = 10.00

Total price for both is $10.00

80% of how many games is 32 games?

Answers

percent means parts out of 100 so
80%=80/100=8/10=0.8
'of' can be translated to as multiply
0.8 times x games is 32 games
0.8 times x=32
note:0.8x= 0.8 times x
0.8x=32
multiply both sides by 10
8x=320
divide both sides by 8
x=40
the number is 40

So, you can set it up like: is over of = % over 100
We need a proportion to solve that answer.
So put the "is" part, which is 32 on top on the left over the "of" part, which is what you do not know, so put x as a variable. Now put 80% since it's the percentage over 100 on the right side. Now, it should look like this: 32/x=80/100(you do not need to include the % sign). Now cross multiply and you get: 80x=3200. Now divide 80 on both sides and you get 40. So there would be 40 games.
Hope this helps. :-)
PS I'm sure glad I learned about proportions to help. (I hope I did)

Brass is an alloy made from copper and zinc in the ratio 3:2, based on weight. If 120g of copper are needed for a certain piece of brass, how much zinc will be needed for the same piece?

Answers

If 120g of copper are needed for a certain piece of brass, then the weight of the zinc that will be needed for the same piece is 80 grams.

What is a Ratio?

A ratio expresses the number of times one number contains another. For example, if a dish of fruit contains eight oranges and six lemons, the orange-to-lemon ratio is eight to six. Similarly, the lemon to orange ratio is 6:8, while the orange to total fruit ratio is 8:14.

Given that Brass is an alloy made from copper and zinc in the ratio 3:2, based on weight. Therefore, the ratio of the metals can be written as,

Copper / Zinc = 3/2

Now, as the weight of the copper is 120grams. Therefore, the ratio can be written as,

Copper / zinc = 3/2

120 grams / zinc = 3/2

zinc = (120 grams × 2) / 3

zinc = 80 grams

Hence, If 120g of copper are needed for a certain piece of brass, then the weight of the zinc that will be needed for the same piece is 80 grams.

Learn more about Ratios here:

brainly.com/question/1504221

#SPJ2

The answer is 80.
You would first, divide 120 by 3.
Then, multiply 40 by 2.

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