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3 years ago

Pllllllzzzzzz gelpo me aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

Mathematics

2 answers:

Savatey [412]3 years ago

7 0

Answer:

FE = 10, DE = 24

Step-by-step explanation:

We can use ratios to solve

13 5

----- = ----------

26 FE

Using cross products

13 FE = 26*5

Divide each side by 13

13 FE/13 = 26*5/13

FE = 10

13 12

----- = ----------

26 DE

Using cross products

13DE = 12*26

Divide each side by 13

13 DE/13 = 26*12/13

DE = 24

Ilia_Sergeevich [38]3 years ago

3 0

Answer:

D. DE = 24 yd, EF = 10 yd

Step-by-step explanation:

Solve for the unknown angles by setting up common ratios and cross multiplying. You can use this method because they are similar triangles.

For example, DE can be found by setting the ratios of AC/AB equal to the ratio of DF/DE.

13/12 = 26/x

Simply solve for x!

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The length of a rectangular prism is 1.5 feet. Its width is 7 feet and its height is 6.2 feet. So the volume of the prism is 65.

Alexxandr [17]

7 * 6.2 * 1.5 = 65.1

the answer is True

5 0

3 years ago

An individual is at a restaurant with two other people and they are trying to determine the tip for their check total which came

zlopas [31]

Answer:

c. The tip is $10.00

Step-by-step explanation:

The total bill in the restaurant is = $ 68.42

They wanted to pay a gratuity of 15%

Therefore the correct tip can be calculated as :

= 68.42 of 15%

= $68.42 \times \frac{15}{100}$

= 68.42 x 0.15

= 10.263

≈ 10 (approx.)

Thus the individual along with the other two wishes to pay a tip $10.00 for the total value.

7 0

2 years ago

How many 4-digit numbers are neither multiples of 2 nor multiples of 5?

Gwar [14]

There are 10,000 total four-digit numbers (1000 through 9999).

Multiples of 2 end in 0, 2, 4, 6, and 8. There are 9*10*10*5 = 4500 four-digit multiples of 2.

Multiples of 5 end in 0 or 5. There are 9*10*10*2 = 1800 four-digit multiples of 5.

There is redundancy between the two sets of numbers, namely those that end in 0, which are both multiples of 2 and 5. There are 9*10*10*1 = 900 four-digit multiples of both 2 and 5.

Then there are 4500 + 1800 - 900 = 5400 total four-digit numbers that are either multiples of 2 or 5, which means the remaining 4600 numbers are neither multiples of 2 nor 5.

4 0

3 years ago

What is negative 21/9 times negative 18/7

diamong [38]

Answer:

negative 21/9 times negative 18/7 is 6

Step-by-step explanation:

The phrase negative 21/9 times negative 18/7 can be written mathematically as

$-\frac{21}{9} \times -\frac{18}{7}$