3 years ago

15 points

Mathematics

1 answer:

valentinak56 [21]3 years ago

5 0

Answer:

43 9/10 miles

Step-by-step explanation:

2(1 3/4) + 2(20 1/5) = 2(7/4) + 2(101/5) = 14/4 + 202/5 = 7/2 + 202/5

common denominator will be 10

7(5) = 35

202(2) = 404

35/10 + 404/10 = 439/10 = 43 9/10 miles

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2500 in scientific notation

barxatty [35]

You move the decimal to the left three places, so it is 10³

2.5 * 10³

Hope this helped :)

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3 years ago

How many solutions do these equations have

Arlecino [84]

Answer:

$\large\boxed{\bold{one\ solution}\ (1,\ -4)\to x=1,\ y=-4}$

Step-by-step explanation:

$\left\{\begin{array}{ccc}y=2x-6\\y=-x-3\end{array}\right\\\\\text{These are linear functions. We only need two points to draw a graph.}\\\\\text{Choice two values of x, substitute to the equation,}\\\text{and calculate the values of y.}\\\\y=2x-6\\for\ x=0\to y=2(0)-6=0-6=-6\to(0,\ -6)\\for\ x=3\to y=2(3)-6=6-6=0\to(3,\ 0)\\\\y=-x-3\\for\ x=0\to y=-0-3=0-3=-3\to(0,\ -3)\\for\ x=-3\to y=-(-3)-3=3-3=0\to(-3,\ 0)\\\\\text{Look at the picture}$

$\text{The intersection of the line is the solution of the system of equations:}\\\\(1,\ -4)\to x=1,\ y=-4$

7 0

3 years ago

I WILL GIVE BRAINLIEST TO WHOEVER IS CORRECT

fredd [130]

Here you go!! It's always best to graph these questions, if you have graph paper near.
If not there are online graphing websites to use!! :))

ANSWER: Choice D (4th answer)

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3 years ago

Find the area of a parallelogram that has a base of 24 feet and a height of 12 feet. A) 18 ft2 B) 36 ft2 C) 64 ft2 D) 288 ft2

Shkiper50 [21]

Answer:

D) 288 ft.

Step-by-step explanation:

To find the area of a parallelogram, multiply the base times the height.

A=bh

A= 24 x 12

A= 288

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3 years ago

There were 200 people at the baseball game. Each of them bought a $8 ticket to get into the game. How much money did the people

irina1246 [14]

8 x 200

= 8 x 2 x 100

= 16 x 100

= 1,600

--------------

Answer:

$1,600

7 0

3 years ago

Read 2 more answers

*15 points*

15 points