2 years ago

What value should take the place of 18

Mathematics

1 answer:

rodikova [14]2 years ago

3 0

Answer:

the value should be twns and ones

Step-by-step explanation:

1 8=tens 8(1 ones)

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Can i please get some help here its math

LiRa [457]

X is 9

12x + 17 = -1 + 14x
18 = 2x
x = 9

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2 years ago

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A cylindrical tank has a radius of 15 feet and a height of 45 feet. How many cubic feet of water can the tank hold?

ch4aika [34]

$\bf \textit{volume of a cylinder}\\\\
V=\pi r^2 h\quad 
\begin{cases}
r=15\\
h=45
\end{cases}\implies V=\pi \cdot 15^2\cdot 45$

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3 years ago

PLS HELP ASAP NEED FOR A TEST

horrorfan [7]

Answer:

The answer in the procedure

Step-by-step explanation:

Let

x----> the first number

y----> the second number

we know that

$\frac{x}{y}=\frac{3}{4}$

$y=\frac{4}{3}x$ -----> equation A

$x+y=35$ ----> equation B

substitute equation A in equation B

$x+\frac{4}{3}x=35$

$\frac{3x+4x}{3}=35$

$\frac{7}{3}x=35$

$x=35*3/7=15$

$y=35-15=20$

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2 years ago

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Lisa [10]

The answer is 10 times.

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2 years ago

Convert scientific notation to decimal format.<br> 9.8*10^-9

konstantin123 [22]

Answer:

- 9,800,000,000

Step-by-step explanation:

9.8 * $10^{-9}$

Simplify 10 with exponent

${10}^{-9}$ = -10 with 9 zeroes

Rewrite

${10}^{-9}$ = -1,000,000,000

Place back into expression

9.8 * -1,000,000,000

Simplify by multiplying

- 9,800,000,000

Let me know if you have any questions!

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1 year ago