2 years ago

Given the system of linear equations:

1 answer:

3 0

6x+7y=32 and 2x+5y=16

if you add the two equations you get the first answer and if you subtract the two equations you get the second answer

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Show how to solve this two step problem. My item is 40% off. The original price is X. Explain the two one step equations you wou

fredd [130]

40% of (times) X
4/10 of (times) X or 2/5 or .4
145 (times) .4 which is 58

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2 years ago

[20 pts] evaluate the logarithm log(6)1/36, show work pls!

Delvig [45]

Answer:

$\large\boxed{\log_6\dfrac{1}{36}=-2}$

Step-by-step explanation:

$\text{We know:}\\\\\log_ab=c\iff a^c=b\\\\\log_6\dfrac{1}{36}\qquad\text{use}\ a^{-1}=\dfrac{1}{a}\\\\=\log_636^{-1}=\log_6(6^2)^{-1}\qquad\text{use}\ (a^n)^m=a^{nm}\\\\=\log_66^{(2)(-1)}=\log_66^{-2}\qquad\text{use}\log_ab^n=n\log_ab\\\\=-2\log_66\qquad\text{use}\ \log_aa=1\\\\=-2(1)=-2$

$\log_6\dfrac{1}{36}=-2\ \text{because}\ 6^{-2}=\dfrac{1}{6^2}=\dfrac{1}{36}$

8 0

2 years ago

1. (-78) + (-98) =

Iteru [2.4K]

Answer:

1.-179

2.68

3. 11

4. 25

5. -734

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2 years ago

your order 4 fish tacos and a hamburger. The cost of the hamburger is $2.50. Your total bill before tax is $14.30. Write and sol

ValentinkaMS [17]

Answer:

$2.95

Step-by-step explanation:

Step 1:

( $14.30 - $2.50 ) ÷ 4

Step 2:

$11.80 ÷ 4

Answer:

$2.95

Hope This Helps :)

4 0

2 years ago

Read 2 more answers

Which expression has the same value as -18 divided (-9)?

MArishka [77]

Answer: 12+(-9)

Step-by-step explanation:

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2 years ago