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Angelina_Jolie [31]
2 years ago
13

Please help me this is for a test. Thank you so much whoever answers this.

Mathematics
1 answer:
Alenkinab [10]2 years ago
5 0

Answer: Pretty sure the answer is 3.

Step-by-step explanation:

\frac{2(4+7)-7}{5}

\frac{2(11)-7}{5}

\frac{22-7}{5}

\frac{15}{5}

You might be interested in
Find the value of 7 Y if 3 bracket Y - 1 bracket is equal 21​
lawyer [7]

Answer:

7y = 56

Step-by-step explanation:

3(y - 1) = 21

Divide 3 on both sides:

y - 1 = 7

Add 1 to both sides:

y = 8

Multiply by 7 on both sides:

7y = 56

8 0
3 years ago
Two skateboarders, Ron and Bob, are traveling in opposite directions.Ton travels at 8 feet per second and bob travels at 10 feet
omeli [17]

Time taken before they are 2640 feet is 146.67 seconds

<em><u>Solution:</u></em>

The distance is given by formula:

distance = speed \times time

<em><u>Ton travels at 8 feet per second</u></em>

Let us assume, time taken = t

speed = 8 feet per second

Then, distance is given as:

Distance covered by Ton = 8t

<em><u>Bob travels at 10 feet per second</u></em>

Then, distance is given as:

Distance covered by Bob = 10t

How long will it take before they are 2640 feet

Which means,

Distance covered by Ton + Distance covered by Bob = 2640

8t + 10t = 2640\\\\18t = 2640\\\\Divide\ both\ sides\ of\ equation\ by\ 18\\\\t = 146.67

Thus time taken before they are 2640 feet is 146.67 seconds

<h3><u>Method 2:</u></h3>

Since trains are moving in opposite directions, their speeds must be added

speed = 8 + 10 = 18 feet per second

Given distance = 2640 feet

Therefore, time taken is:

time = \frac{distance}{speed}\\\\time = \frac{2640}{18} = 146.67 \text{ second }

Thus time taken before they are 2640 feet is 146.67 seconds

4 0
3 years ago
Can someone help me with this ?
Gala2k [10]

Answer:

de goes with bc ab goes with fd and angle f is angle A and angle d is angle B

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
WILLL GIVE BRAINIEST!!!!!
V125BC [204]

Answer:

I think it's the first one if not put the last

PLS PUT ME BRIANIEST

Step-by-step explanation:

5 0
3 years ago
Subtract seven over eight minus two over three
Stells [14]

Answer:

5/24

Step-by-step explanation:

hope it works for u good luck

4 0
3 years ago
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