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2 years ago

What is the value of x in the equation x-3y = 30, when y = 15? 1 04 8 80 200

Mathematics

2 answers:

True [87]2 years ago

8 0

Answer:

x = 75

Step-by-step explanation:

Given information from the question:

x - 3y = 30

y = 15

We can substitute y = 15 into the equation to find x.

x - 3(15) = 30

x - 45 = 30

x - 45 + 45 = 30 + 45

x = 75

bogdanovich [222]2 years ago

6 0

Answer:

Step-by-step explanation:

x-3y=30

x-3×15=30

x-45=30

x=30+45

x=75

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aniked [119]

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4 0

3 years ago

7. Given the following information, calculate, in order, the amount credited and the outstanding balance.

svp [43]

Answer:

C. $824.74, $175.26

Step-by-step explanation:

1) Amount Credited

The formula to calculate the amount credited =

Amount paid ÷ ( 100% - Discount)

Discount is given in the question as 3/10

Where 3 = Discount rate

Amount paid = $800

Amount credited = 800/( 100% - 3%)

= 800/ 97%

= 800/ 0.97

= $824.74

b) Outstanding balance = Invoice - Amount credited

Invoice = $1000

Amount credited = $824.74

Outstanding balance = $1000 - $824.74

= $175.26

5 0

3 years ago

Please help 15 points each but beware if you use my points for no reason I'll report you

romanna [79]

Answer:

$2048~ \text{in}^3$

Step-by-step explanation:

$\text{Volume,}~ V = \dfrac 43 \pi r^3 \\\\\\~~~~~~~~~~~~~~~=\dfrac 43 \times 3 \times 8^3\\\\\\~~~~~~~~~~~~~~~=4 \times 512\\\\\\~~~~~~~~~~~~~~~=2048~ \text{in}^3$