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3 years ago

Solve the equation r+3 = 3(r-5)

Mathematics

2 answers:

nata0808 [166]3 years ago

4 0

R+3= 3(r-5)

r+3= 3r-15

3= 2r-15

18=2r

9=r

Harrizon [31]3 years ago

3 0

Answer:

r-9

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable

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Asher opened a savings account by making an initial deposit and setting up weekly automatic deposits as shown in the graph. How

Sergio [31]

Answer:

y = 7.5x + 20

Step-by-step explanation:

As per the graph, the y-intercept is 20 which is the initial amount.

Another marked point has coordinates (4, 50).

<u>The slope is:</u>

m = (50 - 20)/4 = 7.5

<u>The equation of the line is:</u>

y = 7.5x + 20

$20 is the initial deposit and weekly deposit is $7.5

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2 years ago

Read 2 more answers

write in scientific notation 1. 0.0000364 2. 0.00751 3. 0.10005 4. 1,094 5. 0.00000099 6. 0.04101 7. 10,500 8. 8,9000

solmaris [256]

$1.\\0\underbrace{.00003}_{5\to}54=3.54\times10^{-5}\\2.\\0\underbrace{.007}_{3\to}51=7.51\times10^{-3}\\3.\\0\underbrace{.1}_{1\to}0005=1.0005\times10^{-1}\\4.\\1\underbrace{,094}_{\leftarrow3}=1.094\times10^3\\5.\\0\underbrace{.0000009}_{7\to}9=9.9\times10^{-7}$
$6.\\0\underbrace{.04}_{2\to}101=4.101\times10^{-2}\\7.\\1\underbrace{0,500}_{\leftarrow4}=1.05\times10^4\\8.\\8\underbrace{9000}_{\leftarrow4}=8.9\times10^4$

3 0

2 years ago

Solve for x - PLEASE NEED HELP, this is my 3rd time posting it.

mafiozo [28]

Answer:

$x=58$

Step-by-step explanation:

First, remember that the maximum degree of an angle totals 360°.

Since we already have 294°, this means that what is left must total $360\textdegree - 294\textdegree= 66\textdegree$ .

Therefore, this means that our two smaller angles must equal 66°. So:

$(36)+(x-28)=66$

Solve for x. Add on the left:

$x+8=66$

Subtract 8 from both sides. Therefore, the value of x is:

$x=58$

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3 years ago

Parker puts 25 $ of her earnings

solong [7]

Answer:

12 months or a year

Step-by-step explanation:

300÷25=12

8 0

3 years ago

Solve y = x - 5 if the domain is 5

Lunna [17]

If the domain is 5, you just put that five where you find an x. So,
y = 5 - 5
y = 0

Domain means those are the numbers that will be set as x's in the equation

6 0

2 years ago

Solve the equation r+3 = 3(r-5)​

Solve the equation r+3 = 3(r-5)