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o-na [289]
3 years ago
15

Estimate each percent. 19% of 51 69% of 203

Mathematics
2 answers:
lyudmila [28]3 years ago
7 0
The answer for
1 - 9.69
2 - 140.07
slamgirl [31]3 years ago
7 0

Answer:

9.69 & 140.07

Step-by-step explanation:

0.19*51=9.69

0.69*203=140.07

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How do you Subtract 9x^2 + 22x - 46 from 12x^2 - 8x + 12.
Luba_88 [7]

Subtract the x^2 terms from each other, then the x terms, then the ones without any x whatsoever.

(12x^2 - 8x + 12) - (9x^2 +22x-46)

First, we'll subtract 9x^2 from 12x^2

12x^2-9x^2- = 3x^2

Result: 3x^2

Next, we'll subtract 22x from -8x

-8x - 22x = -30x

Result: -30x

Finally, we'll subtract -46 from 12

12-(-46) = 12+46 = 58

Result: 58

Now, we can add these 3 results together.

First, we had 3x^2, then -30x, and finally 58.

Thus, our subtraction of

(12x^2 - 8x + 12) - (9x^2 +22x-46)

equals

3x^2-30x+58

4 0
3 years ago
A mystery element has 18 protons. Which one of the following statements is true about the element?
Xelga [282]

Answer:

My guess would be B

Step-by-step explanation:

8 0
3 years ago
What is the value of exppresion if m=3 and n=2 (2m)3 +3(6-n)n?
shtirl [24]

Answer:

102

Step-by-step explanation:

2(3)³ + 3(6-2)2

2 (27) + 3(4)2

54 + 48

102

7 0
3 years ago
A smart-phone plan charges a fixed fee plus the cost of the data. If a plan with 2GB of data costs $75 and one with 5 GB costs $
SSSSS [86.1K]

Answer:

61.2

Step-by-step explanation:

1) 75:2=37.2

2) 120:5=24

3) 37.2+24=61.2

7 0
1 year ago
Of the 345 7th graders, 40% of them<br> are in band. How many 7 graders<br> are in band?
xz_007 [3.2K]
So first you find 10% which is 34.5
Then you multiply 10% by 4 to get 40% which is = 138
3 0
2 years ago
Read 2 more answers
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