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Fynjy0 [20]
3 years ago
11

A cars tire pressure decreased by 0.098 of its original pressure write 0.098 as a percent

Mathematics
2 answers:
Anastasy [175]3 years ago
8 0
Answer would be 9.8% mate
balandron [24]3 years ago
5 0
To write this as a percent, just move the decimal two places to the right. So instead of .098, this becomes 9.8%. hope this helps!
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17. Tiana deposited $500 into an
Ivahew [28]

Answer:

In 50 years the amount will be $ 2000.

Step-by-step explanation:

Tiana deposited $500 into a account at 6 % simple interest per Year .

Therefore, Principal (P) is $500

Amount (Principal + Interest) = $2000

Interest (I) = $2000 - $500 = $1500

Rate percentage (R) = 6% per Year

Let, The time be T years

Now, I = \frac{P . R . T}{100}

Or, T = \frac{100. I }{P . R}  

Or, T = (100×1500 ) ÷ ( 500× 6 )

<em>     </em><em>∴ T = 50 Years</em>

3 0
3 years ago
2.Solve the following quadratic equations<br> i. 9x^2 - 1/16<br> ii. 2h^2 - 3h - 27
Juli2301 [7.4K]
i)~9x^2-\dfrac{1}{16}=0\iff9x^2=\dfrac{1}{16}\iff x^2=\dfrac{1}{9\cdot16}\iff \\\\x^2=\dfrac{1}{144}\iff x=\pm\sqrt{\dfrac{1}{144}}=\pm\dfrac{1}{12}\Longrightarrow\boxed{x=\pm\dfrac{1}{12}}


ii)~2h^2-3h-27=0\\\\\Delta=b^2-4ac\to \Delta=(-3)^2-4\cdot2\cdot(-27)\to\Delta=9+216=225\\\\&#10;\Longrightarrow h=\dfrac{-b\pm\sqrt{\Delta}}{2a}=\dfrac{-(-3)\pm\sqrt{225}}{2\cdot2}=\dfrac{3\pm15}{4}\\\\\begin{cases}h_1=\dfrac{3+15}{4}=\dfrac{18}{4}\iff \boxed{h_1=\dfrac{9}{2}}\\h_2=\dfrac{3-15}{4}=\dfrac{-12}{4}\iff\boxed{h_2=-3}\end{cases}

4 0
3 years ago
Paul says that (3.14 X 10^5) + (2.53 X 10^4) = 5.67 X 10^5. Is Paul correct? Explain.
Marizza181 [45]
He is false the equation should be as follows

3 0
3 years ago
Or her comic books and then bought 8 more. She now has 13. How many did she begin with?
OLga [1]
13-8= 5 comic books to begin with,
is that the problem?
3 0
3 years ago
1/4 miles to a shoe store. Then you walk another 2/5 miles to a music store. How many miles have you walked in all?
zavuch27 [327]

Answer:

\frac{13}{20}

Step-by-step explanation:

\frac{1}{4}  +  \frac{2}{5}

First, we need to make the demoninators the same so we times 4 by 5 and whatever we do to the bottom, we do to the top, and 5 by 4.

\frac{ 1 \times 5}{4 \times 5}  +  \frac{2 \times 4}{5 \times 4}

\frac{5}{20}  +  \frac{8}{20}

=  \frac{13}{20}

demoninator now doesn't change unless you're multiplying or dividing.

6 0
3 years ago
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