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anyanavicka [17]
3 years ago
9

This week, Sam spent 2 3/4 hours on his homework. This was 2 2/3 times less than last week. How many hours did he spend on homew

ork last week?
Show your work.
Mathematics
1 answer:
Semenov [28]3 years ago
3 0

Answer:

7.315 hours

Step-by-step explanation:

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$4.20 × $ 5.00=<br><br>A. $12.50<br><br>B. $21.00<br><br>C. $21​
rewona [7]

Answer:

C. $21 (<u>as well as B</u>)

Step-by-step explanation:

→ $4.20 × $ 5.00 = ?

→ 4.20 × 5.00

→ 4.2 × 5.0

→ 21 {final answer}

Hence, option (C) is answer.

4 0
3 years ago
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A trapezoid has an area of 13.5 square inches. If the bases are 3 inches and 6 inches, what is the height of the trapezoid?
IRISSAK [1]
Its three because three divided by two times three plus equal 13.5
3 0
3 years ago
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PLEASE HELP WILL GIVE BRAINLIEST!!!
suter [353]

Answer:

Vertical Angles Theorem

Step-by-step explanation:

The two triangles will be equal by SAS

3 0
3 years ago
An Eastbound train (E) traveling 95 mph and a Westbound train (W) traveling 110 mph leave the same train station at different ti
Simora [160]

Answer:

The system of linear equations that can be used to determine the time that each of the trains has been traveling is:

E + W = 4 ....... Equation 1

95 E + 110W = 400  ......Equation 2

Hence,

An Eastbound train has been travelling for =  (E) = 2.67 hours

A Westbound train has been travelling for =  (W) = 1.33 hours

Step-by-step explanation:

An Eastbound train (E) traveling 95 mph and a Westbound train (W) traveling 110 mph leave the same train station at different times. After 4 hours, they are 4 00 miles apart. Which system of linear equations can be used to determine the time that each of the trains has been traveling?

Speed = Distance/Time

Distance = Speed × Time

Let the time

An Eastbound train =  (E)

A Westbound train =  (W)

E + W = 4 hours ....... Equation 1

95mph × E + 110mph × W = 400 miles

95 E + 110W = 400 miles ......Equation 2

The system of linear equations that can be used to determine the time that each of the trains has been traveling is:

E + W = 4 ....... Equation 1

95 E + 110W = 400  ......Equation 2

E = 4 - W

We substitute 4 - W for E in Equation 2

95 (4 - W) + 110W = 400  

380 - 95W + 110W = 400

Collect like terms

95W - 110W = 400 - 380

15W = 20

W = 20/15

W = 1.3333333333 hours

≈ 1.33 hours

E = 4 - W

E = 4 - 1.33 hours

E = 2.67 hours

Therefore,

An Eastbound train has been travelling for =  (E) = 2.67 hours

A Westbound train has been travelling for =  (W) = 1.33 hours

8 0
3 years ago
Help I be trying so but can figure out the answer
Sphinxa [80]

Answer:

b

Step-by-step explanation:

Surface of the earth =3959×3.14

=12,437.565

if 20%is suitable so we multiply it by the surface

12,437.565×0.2=2,487.513 per people

2,487.513/7,700,00,00

So I think it will be the closest to b

4 0
3 years ago
Read 2 more answers
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