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Aleksandr-060686 [28]
3 years ago
10

I need help pleaseee

Mathematics
1 answer:
laiz [17]3 years ago
8 0
7 because 3 times 7 is equals 21
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(3x+4)^3=2197 solve this equation
Burka [1]
(3x + 4)³ = 2197

Taking the cube root in this case is easier, although we can do it the extended way which is complicated.

\sqrt[3]{(3x+4)^3} = \sqrt[3]{2197}
3x + 4 = 13

Now solve normally.

subtract 4
3x + 4 = 13
       -4    -4

3x = 9
Divide by 3 to isolate 3

\frac{3x}{3}  =  \frac{9}{3}
3 and 3 cancels out

x = 3
7 0
3 years ago
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After a 12% increase the cost of a new cooker is £190.40
Gelneren [198K]

Answer:

22.848

Step-by-step explanation:

Calculate what 12% is out of 190.40

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3 years ago
1.27(v+-7)=-17.78<br> Solve for v.
Alexandra [31]

Answer:

V= −7

Step-by-step explanation:

In pic

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8 0
3 years ago
Halp!!!I need this for tomorrow
Vadim26 [7]
I think the answer you are looking for is 70°
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What is 6 and 6/7 - 2 and 3/8
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