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zysi [14]
3 years ago
15

write 2 equations and solve all 28 members of the crestview high ski club went on a ski trip. members can rent skis for $16 per

day or snowboards for $19 per day. the club paid a total of $478 for all rentals. How many rented skis, and how many rented snowboards
Mathematics
1 answer:
xeze [42]3 years ago
3 0
X = ski rentals, y = snowboarding rentals

x + y = 28......x = 28 - y
16x + 19y = 478

16(28 - y) + 19y = 478
448 - 16y + 19y = 478
-16y + 19y = 478 - 448
3y = 30
y = 30/3
y = 10

x + y = 28
x + 10 = 28
x = 28 - 10
x = 18

so 18 rented skis and 10 rented snowboards

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====================================================

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If so, then any dilation will shrink or enlarge the image depending on the scale factor. So the new image will not be the same as the old one. In this case, a dilation with scale factor 2 means the new figure is twice as large (each side is twice as long). But the old image is similar to the new image. The angles keep their values and therefore we get the same shape. This is why choice B is the answer. Again this is assuming what I mentioned in the first paragraph.

Choices A, C, and D are all known as rigid transformations and they preserve the same size of the figure. Applying any of those operations will lead to the same figure (just rotated, reflected or shifted somehow). In other words, applying operations A,C, or D will have us get two congruent triangles. If two triangles are congruent, then they are automatically similar, but not vice versa. This is why we can rule out A,C, and D.

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