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zmey [24]
3 years ago
12

What is 2,5 and 1,1 in standard form

Mathematics
1 answer:
Nonamiya [84]3 years ago
5 0
Two five one one that is stander form
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There were 180 students in attendance at the dance. If there were 32 more boys than girls at the dance, how many girls and boys
babymother [125]

\huge\boxed{\text{$74$ girls}}\ \huge\boxed{\text{$106$ boys}}

Hey there! This situation can be modeled and solved using a system of equations. We'll use b to represent the number of boys and g to represent the number of girls.

\displaystyle{\left \{ {{b+g&=180} \atop {b&=g+32} \right.}

Since we know what b equals, we can substitute it into the first equation.

\begin{aligned}b+g&=180\\(g+32)+g&=180&&\smash{\Big|}&&\text{Substitute.}\\2g+32&=180&&\smash{\Big|}&&\text{Combine like terms.}\\2g&=148&&\smash{\Big|}&&\text{Subtract $32$ from both sides.}\\g&=74&&\smash{\Big|}&&\text{Divide both sides by $2$.}\end{aligned}

Now that we know the number of girls, use the second equation to get the number of boys.

\begin{aligned}b&=g+32\\&=74+32&&\smash{\Big|}&&\text{Substitute.}\\&=106&&\smash{\Big|}&&\text{Add.}\end{aligned}

8 0
3 years ago
(Geometry HELP) The perimeter of WXY is ___ cm?
Juli2301 [7.4K]
Calculate the perimeter of the smalll triangle and times two because both figures and similar and the scale factors seems to be 2.
8 0
4 years ago
Solve: √81/100<br> Will mark brainliest for fastest and correct response.
gogolik [260]

Answer:

\dfrac{9}{100}=0.09\ or\ \dfrac{9}{10}=0.9

Step-by-step explanation:

\sqrt{a}=b\iff b^2=a\ for\ a\geq0\ and\ b\geq0\\\\\text{We have}\ \sqrt{81}:\\\\\sqrt{81}=9\ because\ 9^2=81.\ \text{Therefore}\\\\\dfrac{\sqrt{81}}{100}=\dfrac{9}{100}\\\\\text{If is}\ \sqrt{\dfrac{81}{100}},\text{then:}\\\\ \text{Use}\ \sqrt{\dfrac{a}{b}}=\dfrac{\sqrt{a}}{\sqrt{b}}\\\\\sqrt{\dfrac{81}{100}}=\dfrac{\sqrt{81}}{\sqrt{100}}=\dfrac{9}{10}=0.9\\\\\sqrt{81}=9\ because\ 9^2=81\\\sqrt{100}=10\ because\ 10^2=100

8 0
3 years ago
PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!
Snezhnost [94]
Yes there is a solution. but
5 0
4 years ago
A classroom has more boys than girls, and it has 8 girls. Furthermore, each student in the classroom has at least 2 pencils. Let
Vikki [24]

Answer:

Choices are:

p>30

p<30

p=30

not enough information to tell

Answer is p>30

Step-by-step explanation:

Since there are more boys than girls, there must be at least 9 boys.  Plug into equation:  (b+8) represents number of students.  If they each have at least 2 pencils we would use 2(b+8).  Plugging in  9 for the boys we have: 2(9+8)=?

2(17)=34.  So with the minimum number of boys there would be at least 34 pencils, so the answer is p>30

3 0
3 years ago
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