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AVprozaik [17]
3 years ago
8

Please help do today

Mathematics
1 answer:
Allushta [10]3 years ago
5 0
Report this clown who put the first answer he’s trying to get your ip
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(solve the following problem using integers. show ALL your work.)
yulyashka [42]

Answer:

$4

Step-by-step explanation:

30+20=50

50-48=2

2+20+=22

22-18=4

if she has 30 then gets 20 she has 50. Then she spends 48 dollars leaving her with only 2 dollars. She then makes another 20 dollars so she now has 22 dollars. She spends 18 dollars leaving her with 4 dollars.

8 0
3 years ago
2x10^-4 - 1x10^-5 show work. I got an answer of 1.9x10^-4,
oksian1 [2.3K]
\bf \left.\qquad \qquad \right.\textit{negative exponents}\\\\
a^{-{ n}} \implies \cfrac{1}{a^{ n}}
\qquad \qquad
\cfrac{1}{a^{ n}}\implies a^{-{ n}}
\qquad \qquad 
a^{{{  n}}}\implies \cfrac{1}{a^{-{{  n}}}}\\\\
-------------------------------

\bf 2\times 10^{-4}-1\times 10^{-5}\implies 2\cdot \cfrac{1}{10^4}-1\cdot \cfrac{1}{10^5}\impliedby 
\begin{array}{llll}
\textit{using the LCD}\\
of~10^5
\end{array}
\\\\\\
\cfrac{2}{10^4}-\cfrac{1}{10^5}\implies \cfrac{(10\cdot 2)~-~(1\cdot 1)}{10^5}\implies \cfrac{20-1}{10^5}\implies \cfrac{19}{10^5}
\\\\\\
19\cdot \cfrac{1}{10^5}\implies 19\times 10^{-5}
8 0
3 years ago
Read 2 more answers
A group of student has 20 Male and 10 females what is the ratio of female-to-male ​
Nitella [24]

Answer:

The ratio of female-to-male is 1:2

Step-by-step explanation:

There are 10 female students and 20 male students. If we were to divide each number by 10, we would get 1 and 2, respectively. That means for every 1 female student, there are 2 male students. The ratio would then be 1:2.

7 0
3 years ago
Evaluate 12 x (4^-2/4^-4)<br><br> A 1/4<br> B 3/4<br> C 16<br> D 192
MrMuchimi
12 ×4^4/4^2
=12×4^2
=12×16
=192
7 0
3 years ago
Three tenths of the sum of -2 and -28 written as numerical expression
Anuta_ua [19.1K]
Three tenths is the same as 3/10

the sum of -2 and -28 is -30

3/10 of -30 is the same as the products of the two

3 x -30 / 10 = -90/10 = -9

Your answer is


3(-2 + -28)/10 = -9
6 0
3 years ago
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