2 years ago

At noon, a tank contained 10 in. of water. After several hours, it contained 7 in. of water. What is the

Mathematics

1 answer:

Olin [163]2 years ago

5 0

-30% answer is right because it lost 3 inches and 30 percent of 10 is 3.

Answer: -30%

You might be interested in

Find the height of the triangle by applying formulas for the area of a triangle and

lina2011 [118]

Answer:

Step-by-step explanation:

a= 12 mm ; b = 16 mm ; c = 18 mm

s = (a + b+c)/2

$=\dfrac{12 + 16 + 8}{2}\\\\= \dfrac{36}{2}\\\\= 18\\\\$

s -a = 18 - 12 = 6 mm

s -b = 18 - 16 = 2 mm

s -c = 18 - 8 = 10 mm

$area = \sqrt{s(s -a)(s-b)(s-c)}$

$= \sqrt{18*6*2*10}\\\\= \sqrt{2160 }\\\\=46.47\\\\=46 \ mm^{2}\\$

$\dfrac{1}{2}* \ base * \ height = 46\\\\\dfrac{1}{2}*16* \ height = 46\\\\height = \dfrac{46*2}{16}\\\\$

= 5.75

Height = 5.8 mm

8 0

2 years ago

Read 2 more answers

Frank rode his bicycle for 4 miles on Saturday. How many yards did he ride his bicycle?

denis23 [38]

Answer:

7,040 yards

Step-by-step explanation:

there are 1,760 yards in a mile, so 1,760 multiplied by 4 is 7,040

7 0

2 years ago

Which of these shows the result of using the first equation to substitute for Y in the second equation, then combining like term

Setler [38]

The answer for this question is A

4 0

2 years ago

Read 2 more answers

Please answer, will choose brainliest

Vikentia [17]

B) would be tha answer :)

6 0

2 years ago

Read 2 more answers

The coordinates of the points A and B are (0,-2) and (3,0), what is the y intercept of the line AB

lilavasa [31]

Answer:

The y-intercept of points A and B is -2.

Step-by-step explanation:

Point A is the y-intercept. You can tell by looking at the x and seeing that it is 0. This means the point is the y-intercept.

Hope this helps!

-Luna

3 0

2 years ago

Read 2 more answers