2 years ago

An expression is shown below.

Mathematics

2 answers:

worty [1.4K]2 years ago

6 0

B. Since she earned 35 (+35), spent 15 (-15), bought a book for $7 (-7) and got 10 dollars from mom (+10)

kondaur [170]2 years ago

5 0

It’s B!
whenever a word problem mentions someone spending money that is subtraction and rewards or gifts are addition :)

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What does 3.5×10⁴ equal

Greeley [361]

3.5x10^4
lets break it down
10^4= 10x10x10x10 so 10,000

so therefore 3.5x 10,000= 35,000

(if i am wrong please tell me and ill try to fix my mistakes)

8 0

3 years ago

Read 2 more answers

Find the coordinates of the midpoint of the line segment ab,where a and b have coordinates a(8.0),b(4.6)

umka2103 [35]

$\bf \textit{middle point of 2 points }\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
% (a,b)
&({{ 8}}\quad ,&{{ 0}})\quad 
% (c,d)
&({{ 4}}\quad ,&{{ 6}})
\end{array}\qquad
% coordinates of midpoint 
\left(\cfrac{{{ x_2}} + {{ x_1}}}{2}\quad ,\quad \cfrac{{{ y_2}} + {{ y_1}}}{2} \right)
\\\\\\
\left( \cfrac{4+8}{2}~~,~~\cfrac{6+0}{2} \right)\implies (6~~,~~3)$