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lutik1710 [3]
3 years ago
14

Tom knows that in his school 10 out of every 85 students are left- handed. There are391 students in tom's school. How many in to

m's school are left-handed?
Mathematics
1 answer:
zimovet [89]3 years ago
4 0

I believe the answer would be 46 students

> 46 Students in Tom's school are Left-Handed

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How to solve this? I'm new to it
Elodia [21]

Answer:

2 = 65

1= 115

Step-by-step explanation:

angles 2 and 65° are equal

so input that in for 2

then subtract it by 180°

6 0
3 years ago
(Annuity number of​ periods) ​You've just bought a new​ flat-screen TV for ​$3,400 and the store you bought it from offers to le
AleksAgata [21]

9514 1404 393

Answer:

  2.5 years

  $736 in interest

Step-by-step explanation:

The relationship between the values in an amortization is ...

  A = P(r/12)/(1 -(1 +r/12)^(-12t))

Here, we have A = 140, P = 3400, r = 0.16 and we want to find t

  140 = 3400(0.16/12)/(1 -(1 +0.16/12)^(-12t))

  1 -(1 +0.16/12)^(-12t) = 1/3.0882353

  (1 +0.16/12)^(-12t) = 0.67619048

Taking logarithms gives ...

  -12t·log(1 +0.16/12) = log(0.67619048)

  t = log(0.67619048)/(-12·log(1+0.16/12)) ≈ 2.46177

It will take about 2.5 years to pay off the loan.

__

The total of payments is ...

  (2.46177)(12)($140) = $4135.77

so, the interest paid is ...

  $4135.77 -3400 = $735.77

You will pay about $736 in interest over the life of the loan.

_____

<em>Additional comment</em>

The number of payments is calculated to be about 29.54. You would probably make 30 payments, with the last payment being a different amount than $140. The actual amount will depend on when the payment is made, and the amount of it that is finance charge. We believe the remaining balance after 29 payments will be $75. After a full month, the finance charge due on that amount is $1.00, bringing the total amount of interest paid to $736.

If the loan is paid off in the middle of the month, the interest due is reduced. Above, we have calculated interest based on a last payment made part way through the month. We rounded up, partly because of the ambiguity in the final payment.

4 0
2 years ago
How many 3/9’s are in 2
gtnhenbr [62]

Answer: they are 3

Step-by-step explanation:

3x3x3

7 0
2 years ago
A line passes through the point (-8, 7) and has a slope of negative 3/4Write an equation in slope-intercept form for this line.
Arlecino [84]

Answer:

y=-\frac{3}{4}x+1

Step-by-step explanation:

We do not have enough information for slope intercept form. But we can use the point-slope formula to find the information. The formula is y -y_{1} =m(x -x_{1}) where we substitute a point (x,y) for (x_{1},y_{1}).  

We have m=-3/4 and (-8, 7). We input m and x_{1} =-8\\y_{1}=7.

y-7=-\frac{3}{4} (x-(-8))\\y-7=-\frac{3}{4} (x+8)

We now simplify the parenthesis and solve for y.

y-7=-\frac{3}{4} (x+8)\\y-7=-\frac{3}{4}x+-\frac{3}{4} (8)

We convert 8 into a fraction with 1 as the denoinator.

y-7=-\frac{3}{4}x+-\frac{3}{4} (\frac{8}{1} )\\y-7=-\frac{3}{4}x+-\frac{24}{4}\\y-7=-\frac{3}{4}x+-6

We add 7 to both sides to isolate y,

y-7+7=-\frac{3}{4}x+-6+7\\y=-\frac{3}{4}x+1

This is slope intercept form. The line as slope -3/4 and y-intercept (0,1) or b=1.

5 0
2 years ago
Which expression would be easier to simplify if you used the associative property to change the grouping?
lord [1]

Answer:

C is the answer

Step-by-step explanation:

Somehow this was in my test last week , lol

8 0
3 years ago
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