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2 years ago

What is the best estimate for 7.8 x 37.86? A. 46 B. 50 C. 300 D. 400

Mathematics

2 answers:

lana66690 [7]2 years ago

8 0

I think it’s C since it’s 295.308

pogonyaev2 years ago

4 0

Answer:

300

Step-by-step explanation:

7.8 x 37.86 = 295.308

round it to the nearest hundred which

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A telephone pole 35 feet high is situated on an 11 degree slope from the horizontal. The measure of angle CAB is 21 degrees. Fin

Andru [333]

The first thing that you should observe is the rectangular triangle that is formed in the description of the statement.
Since you have the angle of 21 degrees and the height of 35 feet, then you can find the distance AC.
I attach the solution.

4 0

2 years ago

The cost for traveling in tina's taxi is 9 pence per 100m

lora16 [44]

Answer:

1405.8 pence fare

Step-by-step explanation:

First we have to change meters into km by dividing the distance by 1000

here we have:

Fare: 9 pence

Distance: 100m/1000 = 0.1 km

when it was

0.1 km -----------> 9 pence fare

if 1 km ------------> 9/0.1 fare

if 15.62 ------------> 9*15.62/0.1

15.62 km ----------> 1405.8 pence fare.

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2 years ago

At present the sum of Monica's age and daughter's age is 44 years. . After 2 years Monica's age will be three times that if her

sergeinik [125]

Answer:

Monica's age = 34 years

Her daughter's age = 10 years

Step-by-step explanation:

Let Monica's age = x

Let her daughter'sage = y

x + y = 44 -------> equ 1

After 2 years:

Monica's age = x + 2

Her daughter's age = y + 2

x + 2 = 3 * (y+2)

x + 2 = 3y + 6

x = 3y + 6 -2

x = 3y + 4

Put x value in equ 1:

3y + 4 + y = 44

4y = 44 - 4

4y = 40

y = 40/4

y = 10

x = 44 -10

x = 34

7 0

2 years ago

Read 2 more answers

GHLJ and GSTU are both parallelograms. Why is<br> ∠L ≅ ∠T?2

Aleksandr [31]

Step-by-step explanation:

8 0

2 years ago

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A certain shampoo is available in two sizes. A 13.5 ounces bottle cost $2.98. A 29.2 ounce bottle cost $6.12. Find the Unit pric

Sladkaya [172]

Answer:

9.2 ounce bottle cost $6.12 is better buy with unit price of $0.22

Step-by-step explanation:

Unit price of any product is given by

unit price = weight of product/ price of product

Given sizes

13.5 ounces bottle cost $2.98

cost of 1 ounce of shampoo for this size = cost price/weight of shampoo

cost of 1 ounce of shampoo for this size =2.98/13.5 = $0.22

Unit price for this size is $.022

9.2 ounce bottle cost $6.12

cost of 1 ounce of shampoo for this size = cost price/weight of shampoo

cost of 1 ounce of shampoo for this size =6.12/9.2 = 0.66

Unit price for this size is $0.66

As $0.22 is less than $0.66 thus,

9.2 ounce bottle cost $6.12 is better buy.

6 0

2 years ago