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Oksi-84 [34.3K]
3 years ago
10

15x+10 80 I need help plzzzzzzz

Mathematics
2 answers:
mash [69]3 years ago
5 0

Answer:

6

Step-by-step explanation:

180-80=100

100-10=90

90 divided by 15=6

grandymaker [24]3 years ago
3 0
Explanation:

they’re supplementary angles (they add up to 180°), so we need to set up an equation by adding them to equal 180°:

15x + 10 + 80 = 180

combine like terms

15x +90 = 180

subtract 90 from move sides

15x = 90

divide both sides by 15

x= 6
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Let line A be the graph of 5x + 8y = -9. Line B is perpendicular to line A and passes through the point (10,10). If line B is th
frozen [14]
Find slope of line A:
Move into slope-intercept form y = mx+b

<span>5x + 8y = -9
8y = -5x - 9
y = (-5/8)x - 9/8

The slope of line A is -5/8.

If </span><span>Line B is perpendicular to line A, then

slope Line B = negative reciprocal of slope Line A</span>
<span>slope Line B = 8/5

So like B has the equation

y = (8/5)x + b

If it passes through (10,10), we know that when x = 10, y = 10. Use those values to solve for b:
</span>
<span>y = (8/5)x + b
10 = (8/5)·10 + b</span>
<span>10 = (8)·2 + b
10 = 16 + b
b = -6

So line B has equation </span>
<span>y = (8/5)x - 6

m = 8/5 and b = -6

so

m + b = 8/5 - 6 = 8/5 - 30/5 = -22/5

So m+b = -22/5 or -4.4 in decimal form
</span>
6 0
3 years ago
What's the scientific notation for 0.3643
Annette [7]
The answer to the question is as the following.

3.643 * 10^(-1)
7 0
3 years ago
I'm uneducated and need help please..​
gogolik [260]

Number one is c. It should take her about nine days

6 0
3 years ago
Read 2 more answers
I will mark you brainliest!!
lakkis [162]

Answer:

Alternate-exterior angles theorem.

Step-by-step explanation:

Two parallel lines are cut by a transversal, and if there are a pair of congruent angles that are outside of the parallel lines, and on opposite sides of the transversal, you will have the alternate-exterior angles theorem.

4 0
3 years ago
20% of 55 is what number
Vitek1552 [10]
20% of 55 is 11

Workingout: 20%/100% = 0.2
                     0.2 x 55 = 11

:)

7 0
3 years ago
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