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Jobisdone [24]
3 years ago
14

Factor completely. 21a^2 - 57a + 30

Mathematics
2 answers:
Kryger [21]3 years ago
8 0
The answer is 3(a-2)(7a-5)
hoa [83]3 years ago
5 0
<span><span> 21a2-57a+30</span> </span>Final result : 3 • (a - 2) • (7a - 5) <span>
hope i helped

</span>

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Evaluate e/4 +2f when e=12 and f =1/2
allochka39001 [22]
12/4 = 3 + 2x 1/2
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5 0
2 years ago
A radio is being discounted 40%. If the sale price of the radio is $31.02, what was the original price of the radio?
kobusy [5.1K]

Answer:

$51.70 is the original price

Step-by-step explanation:

Step 1:

Turn 40% into a decimal which makes it 0.40

ex. 50% would be 0.50, 5% would be 0.05 etc.

Step 2:

Put the numbers into this formula: Original Price (x) - Percent Off times Original Price = Sales Price

x - 0.40x = 31.02  this is basically 1x - 0.40x = 31.02 so,

Solving the left side of our equation gives us 1x - 0.40x = 0.60x

so now you have: 0.60x = 31.02

Step 3:

Divide both sides by 0.60 which gets x by itself and gives us the original price which is $51.70

8 0
3 years ago
Joshua and his four friends have 1/2 pakage of a crackers. How many pakages of crackers do they have in all
maks197457 [2]

answer:

2.5 or 2 1/2

work:

4(joshuas friends)+1(joshua)=5

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5/2= 2.5

7 0
2 years ago
Please help!! 11 points!!
MariettaO [177]

Answer:3x < 8x - 3

Step-by-step explanation:

5 0
3 years ago
X+413=−256 <br> What is the value of X?
Phantasy [73]

Answer:

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Step-by-step explanation:

Convert -256 to 256

Addition -> 413+256=

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Convert 669 to -669

X=-669

Double Check:

-669+413=-256

8 0
2 years ago
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