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Advocard [28]
3 years ago
13

the mean of 10 numbers is 1445. if 1500 is also added to this data what will be there new mean of 11 numbers

Mathematics
1 answer:
tamaranim1 [39]3 years ago
7 0
Let the sum of the 10 numbers be x, then
x/ 10 = 1445
x = 1445 x 10 = 14450

New mean = (14450 + 1500)/11 = 15950/11 = 1450
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Parallelogram ABCD is given. Draw line EF so that it goes through the vertex A. Point E lies on the side BC and point F lies on
tresset_1 [31]

Answer:

The proof is explained step-wise below :

Step-by-step explanation :

For better understanding of the solution see the attached figure :

Given : ABCD is a Parallelogram ⇒ AB ║ DC and AD ║ BC

Now, F lies on the extension of DC. So, AB ║ DF

To Prove : ΔABE is similar to ΔFCE

Proof :

Now, in ΔABE and ΔFCE

∠ABE = ∠FCE ( alternate angles are equal )

∠AEB = ∠FEC ( Vertically opposite angles )

So, by using AA postulate of similarity of triangles

ΔABE is similar to ΔFCE

Hence Proved.

7 0
3 years ago
If you drive 130 miles and it takes you Two hours and six minutes and then you drive back on the same route but it takes you two
Vilka [71]
You can gain it by taking an hr and thirty min trip and on the way back takes hr and forty five min. That is how you gain your precious time back!!!✍️☃️⚽️
4 0
3 years ago
R(x) = (500 + ax) (50 - bx)
o-na [289]

Answer:

x

=

−

500

b

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a

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√

250000

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100

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50000

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Step-by-step explanation:

4 0
3 years ago
HEY GUYS I NEED HELP WITH THIS PLZZ! write down everything from the detail of how yall found ur answer plzz! 20 points or more..
aleksley [76]

Answer:

1/6+1/8+$13.50+$5=x

x=$18.79

Step-by-step explanation:

i add them

first i find the common denominator for 1/6 and 1/8

then i add 13.50 by 5

then add 18.50 by 7/24

i hope this explains how i got my answer

5 0
3 years ago
Read 2 more answers
Luther earned some money doing odd jobs last summer and put it in a savings account that earns 3% interest compounded quarterly
inysia [295]

The function we have to use in this case is

m(t)=m_o\cdot(1+\frac{0.03}{4})^{4t}

where mo is the initial amount of money. After 2 teats we get that

\begin{gathered} m_0\cdot(1+\frac{0.03}{4})^8=800 \\ m_0\cdot1.06=800 \\ m_0=\frac{800}{1.06}\approx754.71 \end{gathered}

SO he earned 755 approximately

8 0
1 year ago
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