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valina [46]
3 years ago
10

Find the measures of "a” and "2a" in the figure,

Mathematics
1 answer:
Molodets [167]3 years ago
5 0
<h3>its a figure of hexagon</h3><h3>we know,</h3><h3> sum of hexagon: 720</h3><h3>now,</h3><h3> or, 97+a+165+143+2a: 720</h3><h3> or, 3a + 405: 720</h3><h3> or, 3a: 720 - 405</h3><h3> or, a : 315/3</h3><h3> or, a : 105</h3><h3>therefore, </h3><h3> a : 105</h3><h3> 2a : 2*105</h3><h3> : 210</h3>
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The diameter of a cylindrical water tank is 8ft and its height is 11ft what is the volume of the tank?
Sedbober [7]

Answer:

2211.68123

Step-by-step explanation:

Using the formula to find volume of cylinder

V=πr2h=π·82·11≈2211.68123

3 0
3 years ago
Help help please i will mark u brill
Roman55 [17]

Answer:

Step-by-step explanation:

u/4 + 9.9 = 16.9

Putting value of u = 24 in the equation

24/4 + 9.9 = 16.9

6 + 9.9 = 16.9

15.9 = 16.9

Bringing like terms on one

16.9 - 15.9 = 1

7 0
3 years ago
Read 2 more answers
When Cullen cleaned behind his dresser, he found 73 cents, all in nickels and pennies. There were 25 coins. How many were nickel
Georgia [21]
Let n = number of nickels, and p = number of pennies.
The number of coins is 25, so we get this equation.
n + p = 25

The value of the coins is 0.05 per nickel, and 0.01 per penny.
0.05n + 0.01p = 0.73

Now you have a system of equations.

n + p = 25
0.05n + 0.01p = 0.73

Solve the first equation for n:
n = 25 - p

Now substitute into the second equation.

0.05(25 - p) + 0.01p = 0.73

1.25 - 0.05p + 0.01p = 0.73

-0.04p = -0.52

p = 13

There were 13 pennies.
Now we substitute 13 for p in n + p = 25 to find out the number of nickels.

n + 13 = 25
n = 12

There are 13 pennies and 12 nickels.

Check: 13 pennies and 12 nickels does total 25 coins.
13 * 0.01 + 12 * 0.05 = 0.13 + 0.60 = 0.73
The value is $0.73.
Our answer is correct.
5 0
3 years ago
I need answer ASAP! Please!!
raketka [301]

0 represents having no money, Kyle starts off the day with +53.76 at the end of the day he has -15.23

8 0
3 years ago
A line with a slope of -2/5 that passes through the point (-10,8)
slamgirl [31]

Step-by-step explanation:

m =  -  \frac{2}{3}  \\ ( - 10 ,\: 8) = (x_1,y_1)

y-y_1=m(x-x_1)

Plug in the values into the equation

y - 8 =  -  \frac{2}{3} (x - ( - 10)) \\ y - 8 =  -  \frac{2}{3}( x + 10) \\

y - 8 =  -  \frac{2}{3} x  -  \frac{20}{ 3 }  \\ y =  -  \frac{2}{3} x -  \frac{20}{3}  + 8 \\

y =  -  \frac{2}{3} x +  \frac{4}{3}

To solve for x-intercept , Arrange the values in

ax + by + c = 0

=

-  \frac{2}{3} x - y +  \frac{4}{3}  = 0

To find x-intercept .let y = 0 in the above equation

-  \frac{2}{3} x - y +  \frac{4}{3}  = 0 \\  -  \frac{2}{3} x - 0 +  \frac{4}{3}  = 0 \\

-  \frac{2}{3} x +  \frac{4}{3}  = 0 \\  -  \frac{2}{3} x =  -  \frac{4}{3}

Solve for x ;

x = 2

To find y intercept , let x = 0

and solve for y .

I hope it helps <3

7 0
3 years ago
Read 2 more answers
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