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kodGreya [7K]
2 years ago
11

What is the ones digit of a number if its cube ends in 7

Mathematics
1 answer:
Ostrovityanka [42]2 years ago
3 0

Well, I have never seen a question posed this way, but let's check it out by trial and error.

1^3 = 3

2^3 = 8

3^3 = 27 Hey! There's one. And the ones digit ends in 3.

Let's try another number that ends in 3 and see if it works as well.

13^3 = 2197 Wow. It works again. I never noticed this before, so you taught me something new.

I will test one more.

33^3 = 35937 Bingo. I think we have a winner.

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5(x+2)-7=-32 solve variable. include steps, also check your answer!
Vika [28.1K]

Answer:

Step-by-step explanation:

5x+10-7=-32

5x+3=-32

5x+3-3=-32-3

5x=-35

X=-35/5

X=-7

Check:

5(-7+2)-7=32

5(-5)-7=32

-25-7=-32

-32=-32

This is correct

Mark me as brainliest plz

4 0
3 years ago
Read 2 more answers
Use the babylonian method to approximate square root of 24 to the nearest hundredth.
irina [24]
We will start with our guess of 12, since 12*2 = 24.
Divide 24 by 12; 24/12=2.  Average this answer with our guess:  (12+2)/2=7.  This is our new guess.
24/7=3.428571429.  Average this with our guess of 7:  (3.428571429+7)/2=5.214285715.  This is our new guess.
24/5.214285715=4.602739726.  Averaging with our guess:  (4.602739726+5.214285715)/2=4.90851272.  New guess!
24/4.90851272=4.889464766.  Averaging with our guess:  (4.889464766+4.90851272)/2=4.898988743.  New guess!  You can see as we go through our guesses are closer and closer to the same number...)
24/4.898988743=4.898970228.  Averaging:  (4.898970228+4.898988743)/2=4.898979486.  At this point our answer is the same every time down to the hundred-thousandth.  Our estimate to the nearest hundredth would be 4.90.
6 0
2 years ago
What is the quotient of the following division problem? 328 ÷ 172 = ?
mojhsa [17]

Answer:

C

Step-by-step explanation:

328÷172 how many times can 328 go into 172 so u have to multiply 172 by 2 if it goes over then put on top of the one and then subtract 328 by 172 and u got ur answer and remaining

3 0
3 years ago
Solve this system of equations:<br> -3x + 6y = 9<br> x - 2y = -3
Leokris [45]

Answer:

No solutions

Step-by-step explanation:

no solutions

4 0
3 years ago
Read 2 more answers
Ahmed is taking orders for lunch. A slice of pizza cost $2.1 and a chicken sandwich costs $3.1. He collects $22.8 for the group
noname [10]
X=2
y=6

x+y=8
2.1x+3.1y=22.8

7 0
3 years ago
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