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3 years ago

How do you know where to put the parentheses in an equation?

2 answers:

7 0

Parentheses are used to identify which numbers you should add,multiply .ect first. So If i had

12-(3+1)=x

then you would want to solve 3+1 before you subtract 12.

Westkost [7]3 years ago

7 0

So its like you have an answer to a problem and put the parentheses

all you need to do is just try out different combinations of n \umbers to do first and then do the number(s) outside

hope I helped :D

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Where is Point B on the number line

pishuonlain [190]

I think it’s -3 1/3 because if you count your lines after -3 to -2 you get 3 and it’s on the first line so 1/3! Hope this makes sense :)

3 0

3 years ago

Read 2 more answers

At RSM summer camp 100 students had enough food for a 30-days stay. After 2 days 40 new students joined the camp. After that 2 w

omeli [17]

Answer:

"no additional days of food need to be ordered."

Step-by-step explanation:

Suppose initial quantity of food is x units

Assuming each student eats 1 unit of food per day,

x = 30 * 100 = 3000 units of food

In 2 days, food eaten:

100 * 1 * 2 = 200 units

So food left after 2 days is 3000 - 200 = 2800 units

Now, there are 140 students. They stay 2 weeks (14 days) - 2 = 12 more days

So food eaten in 12 days:

140 * 1 * 12 = 1680 units

THus, after total 14 days gone, the amount of food left is:

2800 - 1680 = 1120 units

Half students left, so there are 70 students left for the last 16 days. How much food would they need?

70 * 1 * 16 = 1120 units

And there are exactly 1120 units left. So, no additional days of food need to be ordered.

6 0

3 years ago

Which theorem would you use to prove ABE ~ DCE?

Pachacha [2.7K]

Answer: Choice C) AA similarity

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We are given that angle ABE = angle ECD since they are both right angles (square marker)

Angle AEB = angle CED as they are vertical angles

we have two pairs of congruent angles, leading us to be able to use the AA (angle angle) similarity theorem

3 0

3 years ago

The area of the figure. Use 3.14 for pie

balu736 [363]

Answer:

54.5 $ft^{2}$

Step-by-step explanation:

divide it to one rectangle and two different triangles.

Rectangles area: (8+3)*4 = 44 $ft^{2}$

triangle top: 4*3/2 = 6 $ft^{2}$

triangle bottom: 3*3/2= 4.5 $ft^{2}$

sum the all up: 44+6+4.5 = 54.5 $ft^{2}$

don't know how to do it with π though if that's obligatory

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3 years ago

Special taxes may be placed on an estate. true or false

kondor19780726 [428]

Answer:false

Step-by-step explanation:

5 0

3 years ago