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zhannawk [14.2K]
2 years ago
13

Can some explain steps​

Mathematics
2 answers:
dalvyx [7]2 years ago
8 0

Answer: r = 9

Given:

16=10+\sqrt{3r+27}

Step-by-step explanation:

16-10=\sqrt{3r+27}

6=\sqrt{3r+27}

Taking square on bothsides, we get

36=3r+27

3r=36-27

r=\frac{9}{3}

r=3

Mashutka [201]2 years ago
5 0

Answer:

r = 3.

Step-by-step explanation:

16 = 10 + √(3r + 27)

√(3r + 27) = 6

Square both sides:

3r + 27 = 36

3r = 36 - 27 = 9

r = 3.

Check the result:

Left side of the equation = 16

Right side = 10 + √(9 + 27)

                  = 10 + √36 = 16

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Maria's book is longer than Brandon's. The difference in the two book lengths is 56
Bingel [31]

Answer:

Maria's book is 202 pages long, Brandon's book is 146 pages long

Step-by-step explanation:

We can set this up with 2 variables: lets say that Maria's book length is x and Brandon's is y.

We can see that Maria's book is 56 pages longer than Brandon's and can come up with an equation:

x=y+56

We also see that their booklengths add up to 348, and can get:

x+y=348

From here, we solve for x and y. We can use substitution to find y.

x+y=348

(y+56)+y=348

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y=146

Here we plug in for x:

x=y+56

x=(146)+56

x=202

Therefor we get that Maria's book is 202 pages long, Brandon's book is 146 pages long

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2 years ago
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katovenus [111]

Answer:

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Step-by-step explanation:

To write this inequality we must consider

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                                  - if it is a close c point, we will use the symbol ≤

-The inequality for this problem will be

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3 years ago
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I really need help with this question! And I need to show work
krek1111 [17]

Answer:

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