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Sav [38]
3 years ago
9

7th Math Homework to Parent Signature 1. What is the value of the expression -9 x 2.22

Mathematics
1 answer:
____ [38]3 years ago
5 0

Answer:

-19.98

Step-by-step explanation:

all you need to do is multiply 2.22 by -9 and you will get the answer -19.98

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Carmine buys a canoe priced at $478. He pays a total, including tax, of $509.07. What was the tax rate?
Reptile [31]

Answer:

6.5%

Step-by-step explanation:

You can find the tax rate by finding the percentage that the initial price increased by.

First, subtract the initial price from the price after taxes.

509.07 - 478 = 31.07

Knowing this we can find the tax rate using an equation like this.

\frac{Difference Between Values}{Initial Value} = \frac{x}{100}

Now we substitute in our values.

\frac{31.07}{478} = \frac{x}{100}

With X being the tax rate, we cross multiply both fractions.

3107  = 478x

From here, we solve for x by dividing 3107 by 478.

x = 6.5

Therefore the tax rate is 6.5 percent.

(Note that when you are trying to find the tax rate that you divide by the initial price before taxes to get the correct value.)

5 0
3 years ago
Read 2 more answers
# 6 Q. Find the volume of the cylinder to the nearest cubic foot.Use a calculator
Bogdan [553]
The volume of the <span>cylinder </span>= π r² h
r ⇒⇒⇒ radius
h ⇒⇒⇒ height

r = 5 ft   and   h = 3 ft
volume = π * 5² * 3 = 235.62 ft³
rounding to the nearest ft² = 236 ft³

The fourth choice is the correct answer

6 0
3 years ago
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Help me !! Accidentally checked in
Aliun [14]

Answer:

27 is correct.

Step-by-step explanation:

6 0
3 years ago
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Determine which equations below, when combined with the equation 3x-4y=2, will form a system with no solutions. Choose all that
svetoff [14.1K]
Two equations will not have solution if they are parallel and have different y-intercepts. Parallel lines have the same slope. In a slope-intercept form, the equation of the line can be expressed as,       
 
        y = mx + b 

where m is slope and b is the y-intercept.

Given: 3x - 4y = 2
Slope-intercept: y = 3x/4 - 1/2

A. 2y = 1.5x - 2
Slope-intercept: y = 3x/4 - 1

B. 2y = 1.5x - 1
Slope-intercept:  y = 3x/4 - 1/2

C. 3x + 4y = 2
Slope-intercept:  y = -3x/4 + 1/2

D. -4y + 3x = -2
Slope-intercept: y = 3x/4 + 1/2

Hence, the answers to this item are A and D. 
6 0
4 years ago
An endpoint and midpoint are given. Find the coordinates of the other endpoint. endpoint: (2,6), midpoint: (5,12)
hammer [34]

Answer:

I got (8, 18) for the other endpoint.

Hopefully this helps!

6 0
3 years ago
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