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inna [77]
3 years ago
12

$69 shoes; 6% tax whats the total

Mathematics
2 answers:
Darina [25.2K]3 years ago
8 0
73.14 $ knowing that the tax would be 4.14$, added to 69$ would be 73.14$
mamaluj [8]3 years ago
4 0
The total of the shoes would be 73.14
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A color printer prints 12 pages in 5 minutes. How many minutes does it take per page?
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2.4

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Find the value of x.<br> 31.7, 42.8, 26.4, x, mean 35
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Answer:

x = 39.1

Step-by-step explanation:

mean = average off all the numbers =

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35 = sum of the #'s / # of #'s

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35 × 4 = 100.9 + x / 4 × 4

140 = 100.9 + x

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It takes 3 hours for two people to weed a garden. How many hour would it take six people to do that task if they were all workin
babunello [35]

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2 years ago
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3/4x + 4/7y = 5/4x -1...solve for y​
Zielflug [23.3K]

Answer:

\frac{3}{4} x +  \frac{4}{7} y =  \frac{5}{4} x - 1 \\  \frac{4}{7} y =  \frac{5}{4} x - 1 - \frac{3}{4} x \\  \\  \frac{4}{7} y =  \frac{5x - 4 - 3x}{4}  \\  \frac{4}{7} y =  \frac{2x - 4}{4}  \\  \\ y = \frac{2x - 4}{4} \div   \frac{4}{7} \\ y =  \frac{2x - 4}{4} \times  \frac{7}{4}  \\  \\ y =  \frac{14x - 28}{16}  \\  \\ y =  \frac{14x}{16}  -  \frac{28}{16}

I hope I helped you^_^

5 0
2 years ago
Chapman’s brickyard sells bricks and blocks. A brick costs $0.38 and a block costs $1.56. The brickyard filled a $24.80 order, w
Ludmilka [50]

Answer:

a) \left \{ {{0.38x+1.56y=24.80} \atop {x+y=28}} \right.

b) 12 blocks and 16 bricks.

Step-by-step explanation:

Let x represent the number of bricks and y represent the number of blocks.  Each brick costs $0.38; this gives us the expression 0.38x.  Each block costs $1.56; this gives us the expression 1.56y.  Together they totaled $24.80; this gives us the equation

0.38x + 1.56y = 24.80

We also know that the number of bricks, x, added to the number of blocks, y, totaled 28; this gives us

x + y = 28

To solve this, we will use substitution.  First we will isolate x in the second equation by subtracting y from each side:

x + y = 28

x + y - y = 28 - y

x = 28 - y

Now we substitute this in place of x in the first equation:

0.38(28 - y) + 1.56y = 24.80

Using the distributive property, we have

0.38(28) - 0.38(y) + 1.56y = 24.80

10.64 - 0.38y + 1.56y = 24.80

Combining like terms gives us

10.64 + 1.18y = 24.80

Subtract 10.64 from each side:

10.64 + 1.18y - 10.64 = 24.80 - 10.64

1.18y = 14.16

Divide both sides by 1.18:

1.18y/1.18 = 14.16/1.18

y = 12

There were 12 blocks sold.

Substituting this into the second equation gives us

x + 12 = 28

Subtract 12 from each side:

x + 12 - 12 = 28 - 12

x = 16

There were 16 bricks sold.

3 0
3 years ago
Read 2 more answers
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