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grigory [225]
3 years ago
5

If 0 and 3 is equal to y = 30 what is 3 and 5.5 equal to

Mathematics
1 answer:
Delvig [45]3 years ago
3 0

Answer:

8.5

Step-by-step explanation:

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You can rake a 20 square meter lawn in 10 minutes. If your mother asks you to rake your own lawn, which is 30 square meters, how
arsen [322]
20 square meter lawn..............................10 min
10 square meter lawn...............................5 min
30 square meter lawn in.........................5*3=15 min
5 0
3 years ago
Bert has three times as much money as Ernie. If Ernie spends $6 on a new rubber ducky, then Bert will have five times as much mo
fomenos

Answer:

Bert has $45.

Step-by-step explanation:

I have no real strategy, except for that I used guess and check. How did I do this? Well, since I am in 5th Grade, I don't know algebra very well, so I made an organized chart and checked all the numbers that had to be a multiple and  could be divided equally by 5, 3 and when a third of that number was subtracted by 6, it was a fifth of the orginal number. Thats how I got 45.

Checking this answer:

It is always important to check your answer after finishing the problem, so this is how I checked my answer:

1. 45 divided by 3 = 15

2. 15 - 6 = 9, and 9 is 1/5 of 45

Bert has $45.

5 0
3 years ago
PLZZZ HELP ME <br> Evaluate the expression <br> 4 • 6(2 + 9√) + 1.
KonstantinChe [14]

Answer:

121 assuming that 9\\ \sqrt \\ is the square root of 9

Step-by-step explanation:

I plugged it into my calculator, but use PEMDAS and you can get the answer.

7 0
3 years ago
Read 2 more answers
HELP PLZZ.<br>I KNOW NO POINTS BUT JUST PLEASE HELP ME!!!​
Svetlanka [38]

Answer:

for number 6 the answer is 6x = -12

the value of x would be 2

6 0
4 years ago
Match the following items by evaluating the expression for x = -2.
Sloan [31]

Answer:

1)  -4

2) -3

3) 1

4) -2

5) 4

Step-by-step explanation:

According to the information given in the exercise, the value of "x" is:

x = -2

Then:

1) You must substitute  x = -2 into the expresion x-2:

=(-2)-2

Now, you must evaluate:

=-4

2) You have to substitute the given value of "x" into the second expression:

x-1=(-2)-1

Finally, evaluating, you get the following result:

=-3

3) According to the Zero exponent Rule, any non-zero number with an exponent of zero is equal to 1.

Then, substituting x = -2 into the expression x^0 and then evaluating, you get:

x^0=(-2)^0=1

4) By definition:

 a^1=a

Then, substituting   x = -2 into x^1 and evaluating, you get:

x^1=(-2)^1=-2

5) Since:

 a^2=a*a

When you substitute the given value of "x" into the last expression and then  you evaluate, you get:

x^2=(-2)^2=(-2)(-2)=4

4 0
3 years ago
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