700. Is the correct answer for that.
Twice the sum of a number and 3
2 (x+3)
is the same
=
as 11 increased by the number
11 + x
so...
2 (x+3) = 11 + x
2x+6 = 11+x
2x-x = 11-6
x = 5
Answer: Mark up percent = 20%
Step-by-step explanation:
Given: Cost price of each T-shirt = $5.00
Amount required = $450
Total students = 75
Market price for each T-shirt to raise the required amount = (Amount required ) ÷ 75
= $450 ÷ 75
= $ 6
Mark up percent = ![\dfrac{\text{Market price - Cost price}}{\text{Cost price}}\times100](https://tex.z-dn.net/?f=%5Cdfrac%7B%5Ctext%7BMarket%20price%20-%20Cost%20price%7D%7D%7B%5Ctext%7BCost%20price%7D%7D%5Ctimes100)
![=\dfrac{6-5}{5}\times100\\\\=20\%](https://tex.z-dn.net/?f=%3D%5Cdfrac%7B6-5%7D%7B5%7D%5Ctimes100%5C%5C%5C%5C%3D20%5C%25)
Hence, Mark up percent = 20%
Answer: (7x^2+144)/x^2
Step-by-step explanation:
f(h(x))=
f(12/x)=
(12/x)^2+7=
12^2/x^2 + 7=
144/x^2 +7=
144/x^2 +7*x^2/x^2=
144/x^2+7x^2/x^2=(7x^2+144)/x^2
Answer:
<h2>8.3 in²</h2>
Step-by-step explanation:
We have
three triangles with the base <em>b = 2 in.</em> and the height <em>h₁ = 2.2 in.</em>
one triangle with the base <em>b = 2 in. </em>and the height <em>h₂ = 1.7 in.</em>
The formula of an area of a triangle:
![A=\dfrac{b\cdot h}{2}](https://tex.z-dn.net/?f=A%3D%5Cdfrac%7Bb%5Ccdot%20h%7D%7B2%7D)
<em>b</em><em> - base</em>
<em>h</em><em> - height</em>
Substitute:
![A_1=\dfrac{(2)(2.2)}{2}=\dfrac{4.4}{2}=2.2\ in^2](https://tex.z-dn.net/?f=A_1%3D%5Cdfrac%7B%282%29%282.2%29%7D%7B2%7D%3D%5Cdfrac%7B4.4%7D%7B2%7D%3D2.2%5C%20in%5E2)
![A_2=\dfrac{(2)(1.7)}{2}=1.7\ in^2](https://tex.z-dn.net/?f=A_2%3D%5Cdfrac%7B%282%29%281.7%29%7D%7B2%7D%3D1.7%5C%20in%5E2)
![S.A.=3A_1+A_2](https://tex.z-dn.net/?f=S.A.%3D3A_1%2BA_2)
![S.A.=3(2.2)+1.7=6.6+1.7=8.3\ in^2](https://tex.z-dn.net/?f=S.A.%3D3%282.2%29%2B1.7%3D6.6%2B1.7%3D8.3%5C%20in%5E2)