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2 years ago

You hang two strands of decorative lights.

Mathematics

1 answer:

Sphinxa [80]2 years ago

5 0

Answer:

The stands will change color at the same time after 54 seconds.

Step-by-step explanation:

Find the Lcm number of both number (18 and 27)

The answer will be 54

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Trevor earns R80 per hour. Calculate how many hours he must work to earn R720

lapo4ka [179]

Answer:

9 Hours

Step-by-step explanation:

720/80=9

7 0

3 years ago

Read 2 more answers

How do I solve 1/2x + 7/2= 5 by graphing

tekilochka [14]

What is graphing. Just wondering

6 0

3 years ago

A. 12

kondor19780726 [428]

Tree casts a shadow 30 feet long. A MHS student standing near the tree casts a shadow 9 feet long. The student is 6 feet tall. What is the height of the tree? Show all work

Answer:

Option D

The height of tree is 20 feet tall

Solution:

From given question,

Shadow of tree = 30 feet

Height of tree = ?

Height of student = 6 feet

Shadow of student = 9 feet

We have to find the height of tree

We can solve the sum by proportion

$\frac{\text{height of tree}}{\text{shadow of tree}} = \frac{\text{height of student}}{\text{shadow of tree}}$

This forms a proportion and we can solve the sum by cross multiplying

$\frac{\text{height of tree}}{30} = \frac{6}{9}\\\\\text{height of tree} = 30 \times \frac{6}{9} = 30 \times \frac{2}{3}\\\\\text{ height of tree } = 10 \times 2 = 20$

Thus height of tree is 20 feet tall

5 0

3 years ago

A 12-ounce bag of chips costs $2.88. What is the unit rate per ounce of chips A $0.17 O B. $0.24 OC. $0.25 OD $0.42

kipiarov [429]

Answer:

B (I think)

Step-by-step explanation:

$2.88 divided by 12 is 0.24

8 0

3 years ago

You earn $56 walking your neighbor's dogs for 8 hours. Your friend earns $36 painting your neighbor's fence for 4 hours

Schach [20]

An equation for your earnings is 56 = 8h
An equation for your friend's earnings is 36 = 4h
To get your pay per hour divide each side by 8 to get $7 per hour.
To get your friend's pay per hour divide each side by 4 to get $9 per hour.
Hope this helps!

3 0

3 years ago