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drek231 [11]
3 years ago
14

Please I need some answers

Mathematics
2 answers:
jek_recluse [69]3 years ago
5 0
A) = 2
B) = -1
C) = -1

Explanation:
jekas [21]3 years ago
3 0
A. -1 B. -1 C. -4 Hope this helps
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Given that R = 8 x + 4 y Find y when x = 8 and R = 30 Give your answer as an improper fraction in its simplest form.
QveST [7]

Answer:

25/8

Step-by-step explanation:

Given That:

R = 8x+4y

X= 8

R = 30.

So, 8 x 8 +4y = 30

Simplify, Rearrange and solve.

64 + 4y = 30

4y = 30/64 = 15/32

y = 15/32 divided by 4

y = 15 / 32 x 1/4

y = 15/(32 x 4) = 15/128

hope this helps

4 0
3 years ago
Only do question 15<br><br> 50 points<br><br> Topic: Percentage
Varvara68 [4.7K]

Answer:

see below

Step-by-step explanation:

The total number of trees is

567+324+156+89+678 =1814

Percent fir = 567/1814 = .312568908=31.26 %

Percent pine = 324/1814 = .178610805=17.86%

Percent larch = 156/1814 =.085997795=8.60%

percent cedar = 89/1814 =.049062845=4.91%

Percent hemlock = 678/1814 = .373759647=37.38%

The total should be 100 %

31.26+17.86+8.60+4.91+37.38=100.01  ( rounding error because we rounded to the hundredths place)

4 0
3 years ago
Read 2 more answers
The price of a CD that sells for 21% more than the amount (m) needed to manufacture the CD
zhuklara [117]

Are you looking for an equation or is there more to the question

5 0
3 years ago
Which graph shows a line with an x-intercept of -5?
Finger [1]

Answer:

The answer is A.

Step-by-step explanation:

The only option is A. since an intercept of (-5,0)

Option B has y-int: (0,-5)
Option C has y-int: (0,5)

Option D has x-int(5,0)

8 0
2 years ago
What is 9 2/5-8 1/3 I need to know for math tomorrow
patriot [66]

Answer:

1\frac{1}{15}

Step-by-step explanation:

Let's use a start by using common denominators. 9\frac{2}{5} = 9\frac{6}{15} and 8\frac{1}{3} = 8 \frac{5}{15}

Now, replace the original equation with the common denominators. 9\frac{6}{15} - 8\frac{5}{15}

Solve! 9\frac{6}{15} - 8\frac{5}{15} = 1\frac{1}{15}

8 0
3 years ago
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