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katovenus [111]
3 years ago
14

Diego bought a book for $13.50. Sales tax is 7%. What is the total cost of his purchase? (show work)

Mathematics
2 answers:
kow [346]3 years ago
8 0

To get the total price multiply the cost of the book by 1 + sales tax rate:

7% as a decimal = 0.07

13.50 x 1.07 = $14.45

Varvara68 [4.7K]3 years ago
3 0

Answer:$22.70

Step-by-step explanation:

13.50

7%=0.7

13.50*0.7=9.45

13.50+9.45=$22.70

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Roshan makes the table below to describe how to draw a ray diagram for a convex lens.
VikaD [51]

Answer:

The ray that goes parallel to the main axis after passing through the lens should also be parallel from the object to the lens

Step-by-step explanation:

To form the image of an object using a convex lens, ray diagrams are used. The following steps are followed when drawing ray diagrams.

1) Light rays are drawn from the object incidented on the lens and parallel to the principal axis. The incident light refracts (bends) through the lens and converges at the focal point at the other side of the lens.

2) Another incident light passes through the optical centre undeflected and intersect with the refracted ray at the other side of the lens.

Based on the above points, Roshan made an error by drawing the ray that goes parallel to the main axis and after passing through the lens made the same ray to be parallel from the object to the lens instead of refracting (bending) after passing through the lens.

7 0
3 years ago
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Multiply (6v+5)(412-2v+7) then simplify the expression
Lunna [17]
Simplified answer,, -12v^2+2504v+2095
5 0
3 years ago
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What is 8 is increased to 22
SOVA2 [1]
<span><span>1.       </span>What is 8 increased to 22.
I believe you want me to show you what is the interest increased from 8 to 22
Let’s start the solution process:
=> 8 is the original number and supposed to be the 100% value
=> 22 is the increased number
subtract 22 by 8 to know how much is added.
=> 22 – 8 = 14
=> 14 / 8 = 1.75
=> 1.75 * 100% = 175%
Thus, the added increased is around 175% of the original money</span>



3 0
3 years ago
M_6 is (2x - 5)º and m_8 is (x + 5)º.<br> What is m 3?
oksano4ka [1.4K]

m_3 is (7x-4)°

Step-by-step explanation:

which is that m_3 is(7x -4)°.

3 0
3 years ago
"The closeness of a measurement to the actual value" is a definition of which term?
Neko [114]
The answer is Accuracy. Accuracy is the closeness of a measurement to the actual vaule. 
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2 years ago
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