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3 years ago

What is the value of r? 35(r−7)=1

Mathematics

2 answers:

kap26 [50]3 years ago

8 0

The answer is 8 and 2 over 3.

fiasKO [112]3 years ago

6 0

Divide both sides by 35
r-7=1/35
add 7 to both sides
r=7+1/35
r=245/35+1/35
r=246/35

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Write the following expression without parenthesis and simplify fully 4-2(x+3)

nalin [4]

Answer:

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Step-by-step explanation:

this is the right answer

8 0

3 years ago

Read 2 more answers

Please help me out please please !!!!!

Sauron [17]

The surface area of a sphere is given by

$S = 4\pi r^2$

We deduce

$r = \sqrt{\dfrac{S}{4\pi}}$

So, in your case, the radius is

$r = \sqrt{\dfrac{100\pi}{4\pi}}=\sqrt{25}=5$

The volume of a sphere is given by

$V=\dfrac{4}{3}\pi r^3$

So, we have

$V = \dfrac{4}{3} \pi 5^3 = \dfrac{500}{3}\pi$

5 0

3 years ago

Help for brianilist! first answer will get brianilist!!!!!!!

stealth61 [152]

HI THERE!!!!!

The answer is your question is the second choice 59 in^2.

Here is how you can do it:

1. Area of rectangle = length*width = 7*4 = 28 square inches
2. Area of triangle on the top = 0.5*base*height = 0.5*7*6 = 21 square inches
3. Area of triangle on right side = 0.5*base*height = 0.5*4*5 = 10 square inches.

Now you can do the total area:
Add them all →→ 28+21+10 = 59

Hope this helps u out.;)P.S. id really appreciate brainliest thx

~ TRUE BOSS

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3 years ago

If you deposit $12,500 in an account that pays 4.5% interest quarterly, what is the balance after 8 years? How much did the acco

Masja [62]

In order to determine the balance of the account, use the following formula for the amount of money obtained after t years, basen on a compound interest:

$A=P(1+\frac{r}{n})^{nt}$

where,

P: principal = $12,500

A: amount earnt after t years = ?

r: interest rate in decimal form = 0.045 (4.5%)

n: times at year for the compund interes = 4 (quaterly)

Replace the previous values of the parameters into the formula for A and simplify:

$\begin{gathered} A=12,500(1+\frac{0.045}{4})^{4\cdot8} \\ A=12,500(1+0.01125)^{32} \\ A=12,500(1.01125)^{32} \\ A=12,500(1.430451402) \\ A\approx17,880.64 \end{gathered}$

Hence, the balance after 8 years is approximately $17,880.64 in the account.

The interest earnt by the account is given by the difference between the previous result and the principal invesment:

I = $17,880.64 - $12,500 = $5,380.64

Hence, the interest earnt is $5,380.64

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1 year ago

Paula bought a ski jacket on sale for $5 less than half its original price. She paid $85 for the jacket. What was the original p

NikAS [45]

Answer:

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Step-by-step explanation:

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3 years ago