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hodyreva [135]
3 years ago
7

It takes three identical water pumps 8 hours to fill a pool.

Mathematics
1 answer:
vagabundo [1.1K]3 years ago
4 0
10 hours and 40 minutes
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If Mel opens his refrigerator door about 36 times a day about how many times will it be opened in April?
LenKa [72]
It will be opened about 1,080 times in april because there are 30 days in april. All you need to do is multiply 36 x 30 and you get 1,080

3 0
3 years ago
The sum of 8 and 7 , doubled
Oksana_A [137]
When you're talking about sums, that means you are adding. So, you do 8+7=15. The sum of it being doubled, you say? 15x2=30, or 15+15=30. Hope this helped :)
6 0
3 years ago
Read 2 more answers
Use the quadratic formula to solve the equation.
elena-14-01-66 [18.8K]

Answer:

\large\boxed{x=\dfrac{5-\sqrt5}{4},\ x=\dfrac{5+\sqrt5}{4}}

Step-by-step explanation:

\text{The quadratic formula for}\ ax^2+bx+c=0\\\\\text{if}\ b^2-4ac

\text{We have the equation:}\ 4x^2-10x+5=0\\\\a=4,\ b=-10,\ c=5\\\\b^2-4ac=(-10)^2-4(4)(5)=100-80=20>0\\\\x=\dfrac{-(-10)\pm\sqrt{20}}{2(4)}=\dfrac{10\pm\sqrt{4\cdot5}}{8}=\dfrac{10\pm\sqrt4\cdot\sqrt5}{8}=\dfrac{10\pm2\sqrt5}{8}\\\\=\dfrac{2(5\pm\sqrt5)}{8}=\dfrac{5\pm\sqrt5}{4}

3 0
3 years ago
Which line segments are equal? How do you know?
Olenka [21]

Answer:

MQ and QP are equal, MO and OP are equal, x=2

Step-by-step explanation:

QO is a perpendicular bisector of MP meaning that Triangle MQP must be isosceles (if at least two of the following, angle bisector, median, or an altitude, coincide in a triangle, that triangle must be isosceles). In this case an altitude and median coincide in triangle MQP. This means that MQ=QP as the triangle is isosceles. And also MO=OP because QO is a median. Now solving for x, 11=4x+3, 8=4x, x=2. Hope this helps!

5 0
3 years ago
Brock is a plumber. He charges a flat rate of $40 to visit a house to inspect it's plumbing. He charges an additional $20 for ev
Jet001 [13]

Answer:

I believe the answer is A - graph W

Step-by-step explanation:


6 0
3 years ago
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