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umka21 [38]
2 years ago
6

And item is regularly priced at $81. Maria brought it at a discount of 85% off the regular price you say a LEKS calculator to fi

nd out how much were you paid
Mathematics
1 answer:
Paladinen [302]2 years ago
4 0

Answer:$12.15

Step-by-step explanation:

Given

The regular price of an item \$81

Maria gets a discount of 85\%

Amount paid after the discount is

\Rightarrow 81(1-85\%)\\\Rightarrow 81(1-0.85)=85(0.15)\\\Rightarrow \$12.15

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Which of the following phrases are inequalities?Choose 2 answers: A. (8 + f)(8 - f) > 36
sp2606 [1]

Answer:

  \text{A. }(8+f)(8-f)>36\\\text{E. }64

Step-by-step explanation:

An inequality must include a comparison symbol, one of <, >, ≤, ≥. Only choices A and E have that.

_____

Choices B and D are equations, not inequalities. Choice C is an expression, neither an equation nor an inequality.

4 0
3 years ago
A school cafeteria sold 1,280 slices of pizza the first week,640 the second week,and 320 the third week.if this pattern continue
mario62 [17]
So we have 1280,640,320,... 
This is a geometric sequence with the first term, a_{1} =1280. To find the common ratio r, we are going to divide any current term by a previous one: r= \frac{640}{1280} =(0.5)

Remember that the main formula of a geometric sequence is:
a_{n} = a_{1} r^{n-1}
Where a_{n} is the nth term (in our case 40), a_{1} is the first term (in our case 1280), r is the common ratio (0.5), and n is the position of the term in the sequence (in our case our weeks)

Now we can replace the values to get:
40=1280(0.5)^{n-1}
(0.5)^{n-1} = \frac{40}{1280}
(0.5)^{n-1} =0.03125
Since our variable, n, is the exponent, we are going to use logarithms to bring it down:
ln(0.5)^{n-1} =ln(0.03125)
(n-1)ln(0.5)=ln(0.03125)
The only thing left now is solving for n to find our week:
n-1= \frac{ln(0.03125)}{ln(0.5)}
n-1=5
n=6

We can conclude that in the sixth week the cafeteria will sell 40 slices of pizza.
5 0
3 years ago
The question is below
VARVARA [1.3K]

Answer:

68

Step-by-step explanation:

  1. We have to find area first:

Flower bed: (triangle)

A =

\frac{1}{2} bh

1/2 × 3 × 8

3 times 8 is 24, time 1/2 is <u>12</u>

Vegetable Patch: (trapezoid)

A =

\frac{b1 + b2}{2} h

5 + 7 = 12

12 / 2 = 6

6h or 6 × 10 = <u>60</u>

Whole Garden:

14 × 10 = 140

2. Then we subtract.

140 - 72 is 68

5 0
3 years ago
Stephen has made a 91, 96, and 95 on the first three quizzes this six weeks. If he makes the same score on the last two quizzes,
kondaur [170]

Answer:

A 94

Step-by-step explanation:

If we take the mean of 91, 96, and 95, we find that it is equal to 94. Thus, if he scores a 94 on his last two quizzes, his average will remain a 94.

5 0
2 years ago
If f(x)= 2x^5-3x^3+2x^2+1, then f(1)=?<br> A. -1<br> B. 0<br> C. 1<br> D. 2<br> E. 4
Ivahew [28]

Answer:

2

Step-by-step explanation:

f(x)= 2x^5-3x^3+2x^2+1

Let x=1

f(1)= 2(1)^5-3(1)^3+2(1)^2+1

    = 2*1 -3*1+2(1) +1

     = 2-3+2+1

     2

8 0
3 years ago
Read 2 more answers
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