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pickupchik [31]
3 years ago
8

Write a unit rate for the situation. Round to the nearest hundredth if necessary. 210 heartbeats in 3 minutes

Mathematics
1 answer:
fomenos3 years ago
8 0

Answer:

70 heartbeats per second

Step-by-step explanation:

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Help pls ahdjsjfjdjcjdj
MrMuchimi

Answer:

B. t = 12h

Step-by-step explanation:

Multiplying the number of hours worked by how much you earn per hour will give you how much you'll earn.

3 0
3 years ago
A photographer is 6 feet tall and cast a shadow that is 2 feet long. He is photographing a palm tree with a shadow that is 7 fee
Novay_Z [31]

Answer: The height of the tree is 21 feet.

Step-by-step explanation:

Here we can assume that the angle at which the sun impacts the photographer and the tree to be the same angle.

Then we can think in both cases as triangles rectangles, where the height is a cathetus, and the shadow is the other cathetus.

Then we will have a relationship like:

Tg(angle) = shadow/height

height = shadow/Tg(angle)

Now, because for both triangles we have the same angle, then Tg(angle) will be the same number for both cases, and we can just think of it as constant K

Tg(angle) = K

Then we have the equation:

Height = Shadow/K

We know that the photographer is 6ft tall, and his shadow is 2 ft long, we can replace those two things in the above equation and find the value of k:

6ft = 2ft/K

K = 2ft/6ft = (1/3)

Now we know that the shadow of the tree is 7ft long, then the height will be:

height = 7ft/(1/3) = 7ft*3 = 21ft

The tree is 21 ft tall.

6 0
3 years ago
Which number is a common factor of 64 and 100?<br><br> A) 4 <br> B) 8 <br> C) 16 <br> D) 20
antiseptic1488 [7]

Answer:

4

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Can you guys help me please :(
ale4655 [162]

Answer:

720 m²

Step-by-step explanation:

Area = base × height

= 12 × 6

= 72 mm²

≈ 720 m² (1 mm = 10 m)

5 0
1 year ago
PLEASE HELP ASAP!!!<br><br> How to solve the equations below <br><br> |x−2|=x<br> |x+1|=1−x
kumpel [21]

Answer:

x-2=x x=0

No Solution

x+1=1-x

Cancel   1 on both sides

Subtract   −x from both sides

x+x=0

Simplify x +x  to  2x

2x=0

x=0

Check Answer

x+1=1-x

0+1=1-0

1=1-0

1=1

6 0
3 years ago
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