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Furkat [3]
3 years ago
10

How do I solve this algebra problem: 2(4a-12)+3a=6a+1

Mathematics
2 answers:
umka21 [38]3 years ago
6 0
2(4a-12)+3a=6a+1 \\\\ 8a-24+3a=6a+1 \\\\ 11a-24=6a+1 \\\\ 11a-6a=1+24 \\\\ 5a=25 \\\\ \boxed{a=\frac{25}{5}=5}
Len [333]3 years ago
4 0
2(4a-12)+3a=6a+1\\\\
8a-24+3a=6a+1\\\\
11a-24=6a+1\ \ \ |Subtract\ 6a\\\\
5a-24=1\ \ \ |Add\ 24\\\\
5a=25\ \ \ |Divide\ by\ 5\\\\
a=5\\\\Solution\ is\ a=5.
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Can someone help me I’m a little lost
Ksivusya [100]

Answer:

14 days

Step-by-step explanation:

Total Problems = 175

Finished Problems = 8

Remaining = 175 - 8 = 167

8 problems in 30 minutes, means:

30/8 = 15/4 = 3.75 minutes per problem

If he works for 45 minutes, at that rate, he can solve:

45/3.75 = 12 problems per day

To finish 167 problems, he will need:

167/12 = 13.91

Rounded, that is <u>14 days more to finish</u>

8 0
4 years ago
Find the y-coordinate of the y-intercept of the polynomial function defined below f(x)=2x(x^2+3)
laila [671]

Answer:

y-intercept is (0,0). Mark brainliest?

3 0
3 years ago
Read 2 more answers
A system of equations is shown.<br><br> 0.6d+0.05e=-4.5<br> -0.12d+0.3e=2.76 <br><br> d=<br> e=
Drupady [299]
I would multiply to get rid of the decimals and work with whole numbers.
Since we have numbers that are "hundredths", we would need to multiply every number by 100.
60d + 5e = -450
-12d + 30e = 276 Now that the decimals are gone, if we multiply the second equation by 5 the "d's" will cancel.
60d + 5e = -450
-60d + 150e = 1380
155e = 930
e = 6
Now plug 6 back in for e and solve for d.
60d + 5(6) = -450
60d + 30 = -450
60d = -480
d = -8
(-8, 6)
If you'd rather work it with decimals just let me know.
4 0
3 years ago
Hannah claims that people who live in southern states spend 9 hours more per week outside than do people in northern states. She
Aneli [31]

Answer: Hello your question is incomplete below is the missing part

Which of the following statements about Hannah’s claim is supported by the interval?

A) Hannah is likely to be incorrect because the difference in the sample means was 18.6−14.4=4.218.6−14.4=4.2 hours.

B) Hannah is likely to be incorrect because 9 is not contained in the interval.

 C)The probability that Hannah is correct is 0.99 because 9 is not contained in the interval.

 D)The probability that Hannah is correct is 0.01 because 9 is not contained in the interval.

 E)Hannah is likely to be correct because the difference in the sample means (18.6−14.4=4.2)(18.6−14.4=4.2) is contained in the interval.

Answer :  Hannah is likely to be incorrect because 9 is not contained in the interval. ( B )

Step-by-step explanation:

The statement that is supported by the interval in Hannah's claim is that

Hannah is likely to be incorrect because 9 is not contained in the interval.

5 0
3 years ago
Check
algol [13]

Answer: Option A is the correct answer, y = x + 2

y - 3 = x-1

Step-by-step explanation:

6 0
2 years ago
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