Solve the following system of equations for x using elimination

Mathematics

2 answers:

Aleksandr-060686 [28]3 years ago

8 0

Answer:

Step-by-step explanation:

Radda [10]3 years ago

3 0

Answer:

b 1 ksoeoeskmx

Step-by-step explanation:

ksowoxk374

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3. (02.01 LC) simplify [-3 over 5] ÷ [7 over 6]A.-7 over 10B.-18 over 35C.18 over 35D7 over 10

Alex

For this case we want to do the following operation:

-3/5 divided by 7/16 and we can do this:

$-\frac{3}{5}\cdot\frac{6}{7}=-\frac{18}{35}$

And then we can simplify and we got:

$-\frac{18}{35}$

4 0

1 year ago

Mark ran 15 miles in 135 minutes. Assume Mark maintains a constant speed.

elixir [45]

Answer:

9 minutes per mile

Step-by-step explanation:

Divide.

135 / 15 = 9

Best of Luck!

7 0

3 years ago

Read 2 more answers

3(t-7) =6. Solve for the and show steps

Taya2010 [7]

$3(t -7) = 6 \\ 3(t) + 3(-7)\\ 3(-7) = -21 \\ 3t = 3t \\ 3t - 21 = 6 \\Add21: 3t - 21 + 21 = 6 +21 \\ 3t = 21: Divide3 \\ \frac{3t}{3} cancel = \frac{27}{3}keep \\ t = 9$
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$8(h - 9) = 8 \\ 8h - 9 = 9 \\ 8h = 8h \\ 8(-9) = -72\\ 8h + (-72) = \\ 8h - 72 = 8 \\ Add72: 8h - 72 + 72 \\ = 8 + 72 \\ divide8 : \frac{8h}{8}cancel = \frac{80}{8} (keep) \\ h = 10$
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$9 + 2(z - 2) = 15 \\ 9+2(z)+ 2(-2)= 15 \\ 2(-2) = -4 \\ 9 +2z = ? \\ 9 +2z+4 = 15\\ Subtract5: 2z + 5 -5 \\ = 15 -5 \\ Divide2: 2z = 10 \\ \frac{2z}{2}cancel = \frac{10}{2} = 5 \\ z = 5$
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