Answer:
![\frac{13}{35}](https://tex.z-dn.net/?f=%20%5Cfrac%7B13%7D%7B35%7D%20)
Step-by-step explanation:
To add or subtract two or more fractions from each other, the denominators have to be the same. To make the denominators the same, we should find the least common multiple of 5 and 7. The least common multiple of 5 and 7 is 35. 5 should be multiplied with 7 to get 35 and 7 should be multiplied with 5 to get 35 (with both numerators).
![\frac{4}{5 } - \frac{3}{7}](https://tex.z-dn.net/?f=%20%5Cfrac%7B4%7D%7B5%20%7D%20%20-%20%20%5Cfrac%7B3%7D%7B7%7D%20)
![\frac{4 \times 7}{5 \times 7} - \frac{3 \times 5}{7 \times 5}](https://tex.z-dn.net/?f=%20%5Cfrac%7B4%20%20%5Ctimes%207%7D%7B5%20%5Ctimes%207%7D%20%20-%20%20%5Cfrac%7B3%20%5Ctimes%205%7D%7B7%20%5Ctimes%205%7D%20)
![\frac{28}{35} - \frac{15}{35}](https://tex.z-dn.net/?f=%20%5Cfrac%7B28%7D%7B35%7D%20%20-%20%20%5Cfrac%7B15%7D%7B35%7D%20)
![\frac{13 }{35}](https://tex.z-dn.net/?f=%20%5Cfrac%7B13%20%7D%7B35%7D%20)
When subtracting, only subtract the numerators (the denominators are kept as is).
Answer:
the second option 5 2/3
Step-by-step explanation:
since 0.3 with a line over it is equal to 2/3 and 3+2 is 5 our answer would be 5 2/3
Answer:
The surface area is ![168\ mm^{2}](https://tex.z-dn.net/?f=168%5C%20mm%5E%7B2%7D)
Step-by-step explanation:
we know that
The tent is a triangular prism
see the attached figure to better understand the problem
The surface area of the triangular prism is equal to
![SA=2B+PL](https://tex.z-dn.net/?f=SA%3D2B%2BPL)
where
B is the area of the triangular face
P is the perimeter of the triangular face
L is the length of the prism
<em>Find the area of the triangular face B</em>
![B=\frac{1}{2}(6)(4)=12\ mm^{2}](https://tex.z-dn.net/?f=B%3D%5Cfrac%7B1%7D%7B2%7D%286%29%284%29%3D12%5C%20mm%5E%7B2%7D)
<em>Find the perimeter of the triangular face P</em>
![P=(6+5+5)=16\ mm](https://tex.z-dn.net/?f=P%3D%286%2B5%2B5%29%3D16%5C%20mm)
we have
![L=9\ mm](https://tex.z-dn.net/?f=L%3D9%5C%20mm)
substitute the values
![SA=2(12)+(16)9=168\ mm^{2}](https://tex.z-dn.net/?f=SA%3D2%2812%29%2B%2816%299%3D168%5C%20mm%5E%7B2%7D)
Answer:
Step-by-step explanation:
Let us represent:
Banana = b
Tomato = t
Peach = p
Hector can buy a banana and a tomato for 56 cents.
b + t = 56
b = 56 - t
He can buy a peach and a banana for 51 cents
p + b = 51
or
He can buy a tomato and a peach for 69 cents.
t + p = 69
p = 69 - t
p + b = 51
69 - t + b = 51
How much does a banana cost?
Answer:
C(X) = 25 + 2x
Step-by-step explanation:
Hello,
John collects vintage baseball cards,
He already has 25 and he collects 2 cards every month.
In x month, he would have
X = 25 + 2x amount of cards
For instance, in 4 months, he would have
X = 25 + 2(4) = 25 + 8 = 33 cards
25 in the equation is a constant since he already has that in stock before considering or calculating what he gets monthly to increase his number of cards.