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3 years ago

Does anyone know this?

Mathematics

1 answer:

maksim [4K]3 years ago

4 0

I think its 24% because .24 x 50 is 12 but I could be doing it wrong, sorry I can't say for sure.

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William estimated √140 by placing a point on the number line below. Which is true about his estimate? please guys I need this du

garik1379 [7]

Answer:

Step-by-step explanation:

Familiarize yourself with perfect squares in the neighborhood of 140:

10^2 = 100

11^2 = 121

12^2 = 144

Note that 140 is much closer to the perfect square than it is to the perfect square 121. The value of √140 must lie closer to 12 than to 11.

Place a point on the number line about 3/4 of the way from 11 to 12.

7 0

4 years ago

How many variable terms are in the expression 3x3y + 5x2 + y + 9?

Ratling [72]

Three variable terms appear in this expression. Although 9xy has two variables, they combine to make one term.

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Like this answer? PM me for more awesome answers! - Boodle

7 0

4 years ago

Mateo's sister Paid off her student loans $5000 in 30 years if she made a payment of $152.35 each month what was a simple intere

belka [17]

Answer:

3.23%.

Step-by-step explanation:

Please consider the complete question.

Mateo's sister Paid off her student loans $5000 in 3 years if she made a payment of $152.35 each month what was a simple interest rate for a way around it to the nearest hundred

Let us find total amount paid by Mateo's sister in 3 years.

1 year = 12 months

3 years = 12*3 months = 36 moths.

$\text{Amount paid in 36 months}=36\times \$152.35$

$\text{Amount paid in 36 months}=\$5484.6$

Now, we will use simple interest formula to solve our given problem.

$A=P(1+rt)$ , where,

A = Total amount after t years.

P = Principal amount,

r = Annual interest rate in decimal form,

$5484.6=5000(1+r(3))$

$\frac{5484.6}{5000}=\frac{5000(1+30r)}{5000}$

$1.09692=1+3r$

$1.09692-1=1-1+3r$

$3r=0.09692$

$r=\frac{0.09692}{3}$

$r=0.032306=3.2306\%\approx 3.23\%$

Therefore, the interest rate was 3.23%.

5 0

3 years ago

14. Find the volume of the sphere. Use 3.14 for pi and round to the nearest tenth if necessary.

marissa [1.9K]

Answer:

Volume of the sphere is 904.3 mi³

Step-by-step explanation:

Given that radius of the sphere is 6 miles. To find Volume of the sphere we will substitute the Value of radius in the given formula:

$\\ \: \: \dashrightarrow { \underline{ \boxed { \pink{ \pmb{ \mathfrak {Volume_{(Sphere)} = \dfrac{4}{3} \pi r ^3 }}}}}} \\ \\$

Substituting the required values:

$\\ \: \: \dashrightarrow \sf \: \: Volume = \dfrac{4}{3} \times 3.14 \times {(6)}^{3} \\ \\$

$\: \: \dashrightarrow \sf \: \: Volume = \dfrac{4}{3} \times 3.14 \times 216 \\ \\$

$\: \: \dashrightarrow \sf \: \: Volume = \dfrac{4}{3} \times 678.24 \\ \\$

$\: \: \dashrightarrow \sf \: \: Volume = \dfrac{2712.96}{3} \\ \\$

$\: \: \dashrightarrow \sf \: \: { \underline{ \boxed{ \pink{ \pmb{ \mathfrak{Volume \approx 904.3 \: {mi}^{3} }}}}}} \\ \\$

Hence,

Volume of the sphere is 904.3 mi³

3 0

3 years ago

Read 2 more answers

Catherine put $5500 into a savings account that earns 4% compound

r-ruslan [8.4K]

6,820$ because you just find 4% of 5,500, then multiple that amount by the amount of months , and just add your initial amount plus that amount and there is your answer

8 0

3 years ago