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zhannawk [14.2K]
3 years ago
14

????????????????????????????

Mathematics
1 answer:
UNO [17]3 years ago
3 0

Answer:

A) 5x-7y=42

Step-by-step explanation:

We know that 5 x 7 = 35 then add 7 = 42

We divide 5 and 7 by 5/7

5/  5/7 = 0.1

7/ 5/7 = 0.2

We find 0.1 = 1/10 and we know that 1/10 of 35 is 3.5

We find 0.2 = 2/10 and we know that 2/10 of 35 is 7 so the answer 7 matches.

We then use 7 for y and keep 5 for x.

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15/22 is the probability you won’t draw a red
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What is the answer to this?
Alisiya [41]

Answer:

i think it was -(1/3)

Step-by-step explanation:

5 0
3 years ago
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I'm looking at the top at 79.9 angle. I'm 100ft away. What's the height of the building?
Anni [7]
To solve this, notice that you have the angle component (I will call this a) and the x-component (the distance of you from the building) of a trig formula, and you are looking for the y-component. We will use the tangent formula, since this incorporates the angle, x, and y components.

1. Write the formula

tan(a) = y ÷ x

2. Rewrite to include the known values.

tan(79.9) = y ÷ 100

3. Solve for the unknown variable, y.

tan(79.9) × 100 = y ÷ 100 × 100

tan(79.9) × 100 = y

4. A fancy step that I call the "flip flop."

y = tan(79.9) × 100

5. Use a calculator to find the value (make sure the calculator is in "degree" and not "radians" mode).

y = 561.3968

6. Round the number as is appropriate for this problem.

Have a great day!

7 0
3 years ago
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The geography of the Fertile Crescent affected the growth of Mesopotamian civilizations by:
Jlenok [28]

Answer:

The geography of the Fertile Crescent affected the growth of Mesopotamian civilizations by soil being very fertile and great for farming and planting things, the Euphrates, Tigris, and Nile rivers were also great for farming but they where also trade routes.

Step-by-step explanation:

4 0
2 years ago
asmine left the house at 7.10 am to go to work. She gets back at 6.35 pm. How long is she out of the house?
ratelena [41]

Answer: 11 hours and 25 minutes


Step-by-step explanation:

Since she left at 7:10 am you can add 50 minutes and you will get 8, then all the way to 6 pm is 10 hours. Now you just have 50 and 35 minutes that you havent added to the total yet so when you add those two together you get 85. But there isnt 85 minutes in a hour so you would have yo break it down and you would get 1 hour and 25 minutes. Add 1 hour and 25 minutes to 10 hours and you get 11 hours and 25 minute. I hope that helps!

Sorry if you didnt under stand my explanation.

8 0
3 years ago
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