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vekshin1
3 years ago
15

What is 12.3 -(-9.6) =12.3 + 9.6 simplified?

Mathematics
1 answer:
BlackZzzverrR [31]3 years ago
4 0

Answer:

Step-by-step explanation:

12.3 + 9.6 = 21.9

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A train leaves Roseville heading east at 6:00 am at 40 miles per hour. Another eastbound train leaves on a parallel track at 7:0
Molodets [167]

Answer:

At 11:00 am the both trains will be at same distance away from Roseville

Step-by-step explanation:

The first train was 40 miles away from Roseville at 7:00 am

After some time t the both trains will be at the same distance away from Roseville.

We will make equation for that situation

d- distance      v1= 40mph and v2= 50mph -  velocity

d =  v1*t + 40 = v2*t  => v2*t - v1*t = 40 => t (v2-v1) = 40 -> t = 40/ (v2-v1)

t = 40/(50-40) = 40/10= 4h      t = 4h

7:00 am * 4h = 11:00 am

Good luck!!!

6 0
3 years ago
Classifying Quadrilateral
Alexxx [7]
Top right would be rhombus
3 0
3 years ago
Read 2 more answers
What is the area of the figure?
Andreyy89

Answer:

88 \:  {in}^{2}

Step-by-step explanation:

Area of the figure = Area of rectangle with dimensions 16 in and 4 in + Area of two right triangles with base (7 - 4 = 3) 3 in and height 8 in

= 16 \times 4 + 2 \times  \frac{1}{2}  \times 3 \times 8 \\  \\  = 64 + 24 \\  \\  = 88 \:  {in}^{2}

7 0
3 years ago
4/7+3/7 1/5.3/2-4/10
Westkost [7]

Answer:

3/10

Step-by-step explanation:

=4/7 + 9/70 - 4/10

=l.C.M of 7 , 70 and 10 =70

=4/7 .10/10 +9/70 -4/10 .7/7

=40/70 +9/70 -28/70

=40+9-28/70

=49-28/70

=21/70

=3/10

7 0
1 year ago
What does this expression mean when it says 2 less than five times a number
Zinaida [17]

Answer:

2 - 5x

Step-by-step explanation:

Answer is in the problem:

2 less than = 2 minus a number ( 2- )

five times a number = 5x ( we don't know what number five is being multiplied by, so we put a variable)

6 0
3 years ago
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