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3 years ago

Could you help with this ?

Mathematics

2 answers:

Rom4ik [11]3 years ago

5 0

20 divided by 5 is 4

20 divided by 5 = 4

Nostrana [21]3 years ago

3 0

20 ÷ 5=4.
20 ÷ 4=5
5 x 4=20

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Show me how to solve -6+x/4= -5

schepotkina [342]

Multiply 4(-5) then add 6 and theres your X

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3 years ago

An engineer is standing 250 meters away from a building. She measures the angle of elevation to the top of the building to be 30

RSB [31]

Answer:

144m

Step-by-step explanation:

we would used tan 30 to determine the height of the building

tan 30 = opposite / adjacent

0.5774 x 250 = 144m

3 0

3 years ago

kathi starts with a number. she adds 3 to her number, then doubles the result. finally, she subtracts 7. if she ended with 9 wha

11111nata11111 [884]

An equation is:
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6 0

3 years ago

Read 2 more answers

Two cards are drawn without replacement from a standard deck of 52 playing cards. What is the probability of choosing a red card

joja [24]

Answer: $\dfrac{3}{51}$

Step-by-step explanation:

Given : The total number of cards in a deck = 52

Number of red cards = 26

There are two types of red cards : diamond and heart.

Number of diamond cards = 13

The probability that the first card is a diamond :-

$\dfrac{13}{52}=\dfrac{1}{4}$

Since diamond is also a red card.

Now, the total cards left = 51

The number of red cards left = 12

The probability that the second card is a red card (without repetition) is given by :-

$\dfrac{12}{51}$

Now, the probability of choosing a red card for the second card drawn, if the first card, drawn without replacement, was a diamond :-

$\dfrac{1}{4}\times\dfrac{12}{51}=\dfrac{3}{51}$

7 0

4 years ago

The wheel of a bike has a diameter of 27 inches. Find the circumference of the wheel. Round your answer to the nearest whole num

Readme [11.4K]

By definition, the circumference is given by:
C = 2 * pi * R
Where,
R: Radio
Substituting values we have:
C = 2 * pi * (27/2)
C = 84.82300165 in
Round to the nearest whole number:
C = 85 in
Answer:
The circumference of the wheel is:
B. about 85 inches

4 0

3 years ago

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