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SIZIF [17.4K]
2 years ago
5

Nihkil surveyed 20 students at his middle school and 13 of them had at least one sibling. What percent of the students surveyed

have at least one
sibling?
Mathematics
1 answer:
jek_recluse [69]2 years ago
5 0
The answer is 65 percent
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A stack of 20 coins contains only nickels and
Galina-37 [17]

Answer:

16 quarters and 4 nickels

4×25=1.00 × 4 = 4.00 4×4=16-quarters

20-16=4-nickels

Step-by-step explanation:

Hope this helps!

7 0
3 years ago
10x + 7y = –8<br> 7x + 7y = –14
Georgia [21]

Answer:

(2, - 4 )

Step-by-step explanation:

Given the 2 equations

10x + 7y = - 8 → (1)

7x + 7y = - 14 → (2)

Subtract (2) from (1) term by term to eliminate y

(10x - 7x) + (7y - 7y) = - 8 - (- 14) , that is

3x = 6 ( divide both sides by 3 )

x = 2

Substitute x = 2 into either of the 2 equations and solve for y

Substituting into (1)

10(2) + 7y = - 8

20 + 7y = - 8 ( subtract 20 from both sides )

7y = - 28 ( divide both sides by 7 )

y = - 4

solution to the system of equations is (2, - 4 )

4 0
3 years ago
A 9-pack of plastic cups costs $7.83. What is the unit price?
Illusion [34]

Answer:

0.87$ per unit ........

6 0
3 years ago
Stan has made a $125.30 monthly deposit into an account that pays 1.5% interest, compounded monthly, for 35 years. He would now
MissTica
The future value of a monthly deposit A=125.30 at annual interest i=0.015 per annum for n=35 years compounded monthly is given by
FV=A((1+i/12)^(12*n)-1)/(i/12)
=125.30(1+0.015/12)^(12*35)/(0.015/12)
=$69156.05

The annuity formula is given by
Payment = r(PV)/(1-(1+r)^(-n))
where
r=interest rate per period = 0.015/12
PV= $69156.05
n=20*12=240
so
Payment = (0.015/12)<span>69156.05/(1-(1+0.015/12)^(-240))
= $333.71  per month.</span>
7 0
4 years ago
Read 2 more answers
Find the diameter of the circle (x-4)2 + (y + 6)2 = 16.<br> A)2<br> B)4<br> C)8<br> D)16
Rzqust [24]

Answer:

The answer is C ) 8

As square root of 16 is 4 which is radius

So times that by 2 gives you 8

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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