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IRISSAK [1]
3 years ago
5

Please help me and explain below.

Mathematics
1 answer:
NARA [144]3 years ago
5 0
The answer is b. a triangle is equal to 180. to find x the equation would be 180= 3x-100+x-10+x-10 which is equal to 60. then sub 60 in to each equation. 3(60)-100=80, 60-10=50, 60-10=50
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IV. Answer the following questions :
olganol [36]

Answer:

which class question is this

7 0
3 years ago
A landscaping company placed three orders with a nursery. The first order was for bushes, trees, and bundles of flowers, and tot
notsponge [240]

To add the bushes and trees, to get 19 bushes and 6 trees, but this wouldn't get me anywhere, because I don't have subtotals for the bushes and trees.

So I'll pick variables (b for the number of bushes and t for the number of trees) and set up a system of equations:

first order: 13b + 4t = 487

second order: 6b + 2t = 232

Multiplying the second row by –2, I get:

13b + 4t = 487

–12b – 4t = –464

This says that b = 23.

Back-solving, I get that t = 47.

Of course, the exercise didn't ask for the values of the two variables. Translating back into English, the solution is,

each bush is $23 and each tree is $47.

To learn more about the variable visits:

brainly.com/question/2804470

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8 0
2 years ago
Santos went on a bike ride of 90 miles. He realized that if he had gone 24 mph faster, he would have
Gnoma [55]
<h3>Answer:  6 mph</h3>

========================================

Explanation:

distance = rate*time

90 = r*t

where r is the slower speed and t is the time it takes when going that slower speed.

If r is bumped up 24 mph faster, to r+24, then Santos takes t-12 hours to get there. The second equation is

90 = (r+24)(t-12)

-------------------------------------

We can solve the first equation for r to get r = 90/t

Then plug this into the second equation and do a bit of algebra

90 = (r+24)(t-12)

90 = (90/t+24)*(t-12)

90 = 90 - 1080/t + 24t - 288

90t = 90t - 1080 + 24t^2 - 288t

0 = 90t - 1080 + 24t^2 - 288t-90t

0 = 24t^2 - 288t - 1080

24t^2 - 288t - 1080 = 0

If you apply the quadratic formula, then you should get the two solutions t = -3 and t = 15. Due to time constraints, I'll skip these steps.

We'll ignore the negative t value. It makes no sense to have a negative time.

So we focus on t = 15 as the only solution.

-------------------------------------

If t = 15, then,

r = 90/t

r = 90/15

r = 6

Santos rode his bike at <u>6 mph</u> at first. Going this speed means he takes 15 hours.

If he rode 24 mph faster, at 6+24 = 30 mph, then he would ride for 15-12 = 3 hours instead. Note that 90/30 = 3.

5 0
3 years ago
!!PLEASE HELP!! Stuck on this and need some help. !!40PTS!!
sladkih [1.3K]

Answer:

c

d

e

Step-by-step explanation:

c) 2(50%)=75%

d) 1=0.75

e) 1=0.75

4 0
3 years ago
The Milky Way Galaxy has at least two hundred billion stars write half this number of stars in standard form
olganol [36]
100,000,000,000 stars in half of the milky way galaxy
7 0
3 years ago
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