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Anika [276]
3 years ago
10

Which equation shows the first step of the substitution method being used to solve the system of linear equations? x + y = 6 x =

y + 5
Mathematics
1 answer:
pychu [463]3 years ago
3 0
Second one. Not enough English knowledge to explain sorry.
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I don't understand how to do percentages please explain​
goblinko [34]

Answer:

$60.79

Step-by-step explanation:

First take off the 30% from $78.95. That will leave you with $55.265.

Add 6% of $78.95 for sales tax (4.737) to the $55,265 = $60.002

Then add the 1% of $78.95 for local option tax (.7895) to the $60.002.

That gives you $60.7915   - round it to the nearest cent and it gives you

$60.79

4 0
2 years ago
Read 2 more answers
8. Let α, β, γ be the angles made by a vector u ∈ R 3 with positive x, y, z−axis respectively. Then, the numbers l = cos α, m =
alex41 [277]

Answer:

The answers are given in the attachment

Step-by-step explanation:

The detailed step by step calculations are shown in the attachment.

8 0
3 years ago
Please help a kid out
Vlad1618 [11]

15/24

4 2/3=(4*3)+2/3=14/3

simply 15/24

15/3/24/3=5/8

refine

5/8*14/3

8 and 14 share a factor of 2

8/2=4

14/2=7

refine

5/4*7/3

5*7/4*3

35/12

convert to mixed number

35/12=2.11

2 11/12

the answer is 2 11/12

7 0
4 years ago
Solve the inequality
worty [1.4K]

Treat it just like and equation at first. Multiply the 10 on both sides to get rid of it, leaving you with 50 \leqx.  Then on the number line, since there is a line under it, you would make a filled in circle and an arrow pointing towards 51 and beyond

6 0
3 years ago
Last week, a skate shop originally sold a skateboard for $120. Today, there is a sale and the same skateboard costs $96. What is
Tamiku [17]
120 - 96 = 24

Now we have to find what percent of 120 24 is.

x × 120 = 24
x = 0.2

0.2 means 20%.

The discount is 20% off.
8 0
3 years ago
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