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gizmo_the_mogwai [7]
2 years ago
12

Need help with 15... thx

Mathematics
2 answers:
Gnesinka [82]2 years ago
6 0
8 x 8 = 64
1.25 x 2 = 2.5
2.5 + 8 = 10.5
10.5 x 10.5 = 110.25
 110.25 - 64 = 46.25
46.25 inches^2
Rzqust [24]2 years ago
3 0
8 x 1.25 = 10 
10 x 10 = 100

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How do you find the discount for $35.00 10% off ??
AysviL [449]
35x0.1= 3.5
35-3.5= 31.50
8 0
2 years ago
Read 2 more answers
How do I solve this? 408=1/2(b)(17)
seropon [69]

Answer:

48

Step-by-step explanation:

Given: 408 = \frac{1}{2} \times (b) \times (17)

Now, solving it.

We first open parenthesis which is (b)\times(17) = 17b

Next Multiply both side by 2

⇒ 816 = 17b

Now, we will divide both side by 17

∴ b= 48

5 0
3 years ago
an inlet pipe and a hose together can fill the pond in 10 hours. The inlet pipe alone can complete the job in one hour less time
Annette [7]

Answer:

The hose pipe can fill the pond in 21.465 hours.

The inlet pipe can fill the pond in 20.465 hours.

Step-by-step explanation:

Given that, a inlet pipe and a hose pipe together can fill the pond in 10 hours.

The inlet pipe alone can fill the pond in one hour less time than the hose pipe can  fill the pond.

Let the hose pipe can complete the job in x hours.

Then the inlet pipe can fill the pond in (x-1) hours.

The rate of filling of hose pipe is =\frac{1}{x}

The rate of filling of inlet pipe is =\frac{1}{x-1}

The rate of filling of both pipes is = \frac 1{10}

According to the problem,

\frac{1}{x}+\frac{1}{x-1}=\frac{1}{10}

\Rightarrow \frac{x-1+x}{x(x-1)}=\frac1{10}                              [ simplifying the fraction]

\Rightarrow \frac{2x-1}{x^2-x}=\frac1{10}                            

\Rightarrow 10(2x-1)= x^2-x                [ Multiplying 10(x²-x) both sides]

\Rightarrow x^2-x= 20x-10

\Rightarrow x^2-x-20x+10=0             [ simplifying ]

\Rightarrow x^2-21x+10=0

\Rightarrow x=\frac{-(-21)\pm\sqrt{(-21)^2-4.1.10}}{2.1}       [ applying quadratic formula]

\Rightarrow x=\frac{21\pm21.93}{2.1}

⇒ x= 21.465,  -0.465

x= - 0.465 does not possible, since time can not be negative.

∴x=21.465

The hose pipe can fill the pond in 21.465 hours.

The inlet pipe can fill the pond in (21.465-1)=20.465 hours.

3 0
3 years ago
Find the volume of this cylinder. Use 3 for T.
DIA [1.3K]

Answer:

volume = \pi {r}^{2} h \\  = 3 \times  {5}^{2}  \times 12 \\  = 900 \:  {ft}^{3}

3 0
3 years ago
What is the square root of 144?
Andrews [41]

Answer:

12, -12

Step-by-step explanation:

sqrt(144)

What number times itself = 144


12*12 = 144

Also -12*-12 = 144


6 0
3 years ago
Read 2 more answers
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