Can anybody help me?

Mathematics

1 answer:

lakkis [162]3 years ago

8 0

You know that 6x+3 equals 45 because the two sides are equal. So you first put the equation 6x+3=45. Then you use the subtraction property of equality and subtract 3 from both sides. This gives you 6x=42. Then you divide 6 from both sides to get you final answer, x=7

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What is the gcf of 12,30

mafiozo [28]

The Gcf of 12 and 30 would be 6

5 0

3 years ago

Can you divide the number 8,101,265,822,784 by 8 without using either long or short division?

LuckyWell [14K]

Yes. If we wanted to divide 104 by 8 we could write 104 as sum of multiples of 8 with which we are familiar:

104=80+24

then $\frac{104}{8}= \frac{80+24}{8}= \frac{80}{8}+ \frac{24}{8}=10+3=13$

We use the same procedure to divide the given number by 8:

First We can "decompose" the number as a sum of multiples of 8 which we recognize easily. Then, divide each single one of them with 8.

That is

8,101,265,822,784 = 8,000,000,000,000+100,000,000,000+1,000,000,000

+265,822,784

now decompose 265,822,784:

265,822,784=240,000,000+24,000,000+1,000,000+800,000+22,784

now decompose 22,784

22,784=16,000+6,784

decompose 6,784

6,784=6,400+384= 6,400+320+64

Thus:

8,101,265,822,784 : 8 =(8,000,000,000,000+100,000,000,000+1,000,000,000+240,000,000
+24,000,000+1,000,000+800,000+16,000+6,400+320+64):8

=1,000,000,000,000+12,500,000,000+125,000,000+30,000,000+
3,000,000+125,000+100,000+2,000+800+40+8

=(1,000,000,000,000+12,500,000,000)+(125,000,000+30,000,000)
+ 3,227,848

=1,012,500,000,000+155,000,000+3,227,848

=1,012,655,000,000+3,227,848

=1,012,658,227,848

4 0

3 years ago

Read 2 more answers

Perform the operation. (9x2 + 6x – 7) + (-9x - 5) PLS HELP ASAP PLS

qaws [65]

Answer:

Step-by-step explanation:

(9x2 + 6x – 7) + (-9x - 5) = 21

6 0

3 years ago

Read 2 more answers

Whats 1 + 1 pls help :CCC