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GrogVix [38]
3 years ago
5

-9(-4r + 6s) + 3s – 7(6s – 2r)

Mathematics
2 answers:
salantis [7]3 years ago
7 0

Answer:

50r-93s

Step-by-step explanation:

-9(-4r + 6s) + 3s – 7(6s – 2r)

distribute

36r-54s+3s-42s+14r

add like terms

50r=93s

Softa [21]3 years ago
5 0
50r=93s !! but the person above me explained it so I won’t :)
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The sales tax on a surfboard is $12. What is the percent of sales tax?
Rudik [331]
X= sales tax %

Step 1:
$240 * sales tax %= $12
240 * x= 12
240x=12
Divide both sides by 240
x= 0.05 (decimal of the %)


Convert to %:
Multiply decimal by 100 (or move decimal to the right two decimal places
=0.05 x 100
=5 %

The sales tax is 5%.

Hope this helps! :)


8 0
4 years ago
Simplify 12 1/2 - 3 3/4
Klio2033 [76]

Answer:

375/8

Step-by-step explanation:

5 0
3 years ago
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A container of oregano is 17 pounds heavier than a container of peppercorns their total weight is 253 pounds the peppercorns wil
34kurt
Alright, we can turn the word problem at the beginning into an equation.
Let's represent oregano with "o" and peppercorns as "p".
o=p+17
Also, we know that the two added together are 253 pounds.
o+p=253
Since we know that o=p+17, let's substitute it into the second equation.
(p+17)+p=253
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2p=236
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So, we have 118 pounds of peppercorns. (Although it's irrelevant to the second half of the equation, we also know we have 135 pounds of oregano)
Now, let's convert pounds to ounces.
1 pound = 16 ounces.
So, multiply 118 by 16....
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8 0
4 years ago
Read 2 more answers
2(x - y) and 2x – 2y<br> Is it equivalent? Please give step by step explanation! Thanks!
jasenka [17]

Answer:

Yes

Step-by-step explanation:

Using distributive property:

2(x - y)

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3 0
3 years ago
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marta [7]

Answer:

A and C

Step-by-step explanation:

Area of ∆ = ½*base*height

Area of figure A:

base = 6

height = 10

Area = ½*6*10 = 3*10 = 30 square units

Area of figure B:

base = 10

height = 8.66

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Area of figure C:

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height = 6

Area = ½*10*6 = 5*6 = 30 square units

Area of figure D:

base = 6

height = 8

Area = ½*6*8 = 3*8 = 24 square units

Area of figure E:

base = 3

height = 10

Area = ½*3*10 = 3*5 = 15 square units

6 0
3 years ago
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