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castortr0y [4]
3 years ago
9

Sue is 55

Mathematics
1 answer:
bagirrra123 [75]3 years ago
8 0

Answer:

dgnmm vcggyo,kkkjhbyggy6789

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If three pears and four oranges cost $4.85 and three pears and ten oranges cost $8.75 what is the cost of a pear and an orange
marishachu [46]

Answer:

1 pear = $0.75; 1 orange = $0.65

Step-by-step explanation:

(1)               3P +  4O = 4.85

(2)              3P + 10O = 8.75                 Eqn (2) - Eqn (1)

3P + 10O – 3P – 4O = 8.75 – 4.85     Combine like terms

                           6O = 3.90                 Divide each side by 6

                             O = $0.65              Substitute into Eqn (1)

           3P + 4×0.65 = 4.85

               3P + 2.60 = 4.85                 Subtract 2.60 from each side

                           3P = 2.25                Divide each side by 3

                            P = $0.75

Oranges cost $0.65 each and pears are $0.75 each

4 0
3 years ago
Simplify<br> -3(2.5-k)+0.5(7+8k)
Vedmedyk [2.9K]

Answer:

-7•5+3k+3•5+4k

-7•5+3•5+4k+3k

-4+7k

6 0
3 years ago
Selena has $10. What is the greatest amount of
just olya [345]
x-\ number\ of \ pounds\\\\&#10;3x\leq10\ \ \ \ divide\ by\ 3\\\\&#10;x\leq\frac{10}{3}\\\\&#10;x\leq3\frac{1}{3}\\\\&#10;She\ can\ buy\ 3\ pounds\ at\ most.
4 0
4 years ago
The point A (5,11) is reflected across the x-axis. How long is the segment AA'?<br>​
Nikitich [7]

Answer:  The required length of the segment AA' is 11 units.

Step-by-step explanation:  Given that the point A(5, 11) is reflected across the X-axis.

We are to find the length of the segment AA'.

We know that

if a point (x, y) is reflected across X-axis, then its co-ordinates becomes (x, -y).

So, after reflection, the co-ordinates of the point A(5, 11) becomes A'(5, -11).

Now, we have the following distance formula :

The DISTANCE between two points P(a, b) and Q(c, d) gives the length of the segment PQ as follows :

PQ=\sqrt{(c-a)^2+(d-b)^2}.

Therefore, the length of the segment AA' is given by

AA'=\sqrt{(5-5)^2+(-11-11)^2}=\sqrt{11^2}=11.

Thus, the required length of the segment AA' is 11 units.

7 0
3 years ago
I got 13.7 is that correct
Ghella [55]

Answer:

The answer to your question is 10.5 in

Step-by-step explanation:

Data

First triangle

height = x

base = 7 in

Second triangle

height = 12 in

base = 8 in

Process

1.- Use proportions to solve this problem, relates the sides of a triangle with the same sides of the other triangle.

                                   \frac{x}{7} = \frac{12}{8}

2.- Multiply both sides by 7

                                7\frac{x}{7} = \frac{7(12)}{8}

3.- Simplify

                                 x = \frac{84}{8}

4.- Result

                                x = 10.5 in

3 0
3 years ago
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