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nevsk [136]
4 years ago
13

-11b+7=40 b=? help, please

Mathematics
2 answers:
s2008m [1.1K]4 years ago
7 0
Step- by step explanation

answer
-3
serious [3.7K]4 years ago
6 0

Answer: -3

Step-by-step explanation:

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devon drives 3/4 the distance to his house in 2 1/2 hours at this speed how long will the entire trip take(can i divide)
Rama09 [41]

Answer:  Devon will complete the entire trip in 3 hours 20 minutes

Explanation:

Since we have given that

Devon drives \frac{3}{4} the distance to his house in 2\frac{1}{2} hours,

Let the distance be x

According to question, we get

Speed=\frac{Distance}{Time}\\\\Speed=\frac{\frac{3x}{4}}{\frac{5}{2}}\\\\Speed=\frac{6x}{20}=\frac{3x}{10}

Now, if he want to travel the entire trip ,

Time taken by Devon is given by

Time=\frac{Distance}{Speed}\\\\Time=\frac{x}{\frac{3x}{10}}\\\\Time=\frac{10}{3}\\\\Time=3\frac{1}{3}\times 60\\\\Time=3\ hours\ 20\ minutes

Hence, Devon will complete the entire trip in 3 hours 20 minutes.

6 0
4 years ago
Nadia's father bought a new camera,lens, and case. He rounded the cost of all the items to estimate how much money he would need
valentina_108 [34]
Doesn't it say the answer in that question...
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for his set.

6 0
4 years ago
Read 2 more answers
Find the area of a triangle whose base is 23 inches and whose height is 8 inches. Write your answer as a decimal if
Irina18 [472]

Answer:

The area will be 92 inches.

Step-by-step explanation:

Remember the formula for area: Area = 1/2b×h

1/2 × 8 × 23 = 92

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3 years ago
Use the diagram to complete the statement
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Answer:

cf=12

Step-by-step explanation:

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