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1 year ago

PLEASE HELP !!!! Please please please ! 15 points !!!

Mathematics

1 answer:

mestny [16]1 year ago

4 0

Third one or C because the seven goes on the bottom trust me I did this it’s just hard to explain

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2. There were 35 children and 10 adults at a cookout.

qwelly [4]

Answer:

a.2:7

b.7:9

c.4:5

hope it helps

Explanation -

a. as original ratio is 10/35 , we reduce it to 2:7.

b. as original ratio is 35/45 , we reduce it to 7:9

c. as original ratio is 40:50 , we reduce it to 4:5

5 0

2 years ago

If there bill was 58.65 and they gave a sever a 15% tip, how much did they pay altogether

masha68 [24]

Answer:

<u>$67.43 altogether</u>

Step-by-step explanation:

A 15% percent tip means 15% OF the bill.

15% of 58.65

$0.15*58.65=8.7975$

You can't really pay $8.7975, so you would round to the nearest one hundredth which is $8.78.

Now you add the $8.78 to $58.65 which will give you $67.43.

I hope that helps!

7 0

3 years ago

To measure the height of a tree, a surveyor walked a short distance from the tree and found the angle of elevation was 43.9°, th

padilas [110]

Answer:

The height of the tree is H = 77.06 m

Step-by-step explanation:

From Δ ABC

AB = height of the tree

$\tan 43.9 = \frac{AB}{BC}$

$\tan 43.9 = \frac{h}{x}$

h = 0.9623 x ------- (1)

From Δ ABD

$\tan 37.6 = \frac{h}{20+ x}$

h = 0.77 (x + 20) ----- (2)

Equating Equation 1 & 2 we get

0.9623 x = 0.77 (x + 20)

0.9623 x = 0.77 x + 15.4

x (0.1923) = 15.4

x = 80.08 m

Thus the height of the tree is given by

H = 0.9623 x

H = 0.9623 × 80.08

H = 77.06 m

Therefore the height of the tree is H = 77.06 m

4 0

3 years ago

Write these equations in y=mx+b form....

nekit [7.7K]

1. y = -1/2 + 2.
2. y= 2/5x - 4/5

6 0

3 years ago

This graph shows a proportional relationship. (2/3, 3/4)

zhannawk [14.2K]

Answer: Hi! I'd love to help you but I'd need to see the graph.

Step-by-step explanation: Can you add a picture?

5 0

2 years ago