3 years ago

Show three ways to estimate 3/5 times 9 1/2

Mathematics

1 answer:

Katen [24]3 years ago

6 0

The answer will be 9 3/10 hopes this helps. :)

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4. Using the formula below, solve when S=1.50 <br> A = 6s2

Lesechka [4]

the answer would be 13.5

1.5^2=2.25

6x2.25=13.5

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3 years ago

Solve x^2 +3x=0 by factoring

ivolga24 [154]

Answer:

x=0,-3 hope this helps

https://www.symbolab.com/solver/step-by-step/x%5E%7B2%7D%20%2B3x%3D0%20 here this website to show your work hope this helps

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3 years ago

What is 8.75 divided by 2/5

KiRa [710]

8.75 = 8 3/4 = 35/4

$\frac{35}{4}\div \frac{2}{5} = \frac{35}{4} \times \frac{5}{2} = \frac{35\times 5}{4\times 2} = \frac{175}{8} = \huge{\boxed{21\frac{7}{8}}}$

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4 years ago

Find the sum<br> -1,457+890+(-345)=

QveST [7]

Answer:

-912

Step-by-step explanation:

Simplify: -1,457 + 890 - 345
-1,457 + 890 = -567
Plug -567 in: -567 - 345
-567 - 345 = -912

I hope this helps!

5 0

3 years ago

12<br> ∑ 20(0.5)^n-1<br> n=3

Alex17521 [72]

Assuming n starts from 1.
∑ $20 (0.5)^{n-1}$ ; n = 1 to 3
$=20 (0.5)^{1-1}+20 (0.5)^{2-1}+20 (0.5)^{3-1} \\ =20 (0.5)^{0}+20 
(0.5)^{1}+20 (0.5)^{2} \\ =20(1)+20(0.5)+20(0.25) \\ =20+10+5 \\ 
=35$

8 0

3 years ago