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Margaret [11]
3 years ago
5

A local zoo has just opened a new stingray environment with 7 young healthy stingrays. The population of stingrays in the endosu

re is expected
to at least double every year and can be represented after years by this inequality.
y > 7(2)
At the time the stingrays were added to the enclosure, the zookeepers determined that the enclosure could sustain at most 160 stingrays. The
number of stingrays the enclosure can sustain after years, because of budget constraints, can be represented by this inequality.
y 160 - 25
Which point on the graph represents a possible number of stingrays, y, in the enclosure?
Y
240
200
160
120
80
40
-10

Mathematics
2 answers:
Korvikt [17]3 years ago
5 0

Answer:

It is the one right next to 120

Step-by-step explanation:

took the test

Romashka-Z-Leto [24]3 years ago
4 0

Answer:

its the one closest to 120. its correct on plato/edmentum

Step-by-step explanation:

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Two trains leave stations 288 miles apart at the same time and travel towards each other. One train travels at 95 miles per hour
erma4kov [3.2K]
95x=85x+288
You could add 288 to any side, it just shows that they're 288 miles apart.
Let's subtract 85x from both sides.
10x=288
28.8=x
It'll take 28.8 hours for the trains to meet. Let's make sure.
28.8×95
2,736
28.8×85
2,448
2,736-2,448
288
So, they'll meet up after 28.8 miles.

5 0
2 years ago
Five sevenths times seven thirds
lord [1]

5/7 x 7/3

Multiply the numerators together and the denominators:

(5 x 7) / (7 x 3)

35/21 reduces to 5/3 = 1 2/3

3 0
3 years ago
Which answer represents the range of the logarithmic function given below?
laiz [17]
I think it is a but I’m not sure
3 0
2 years ago
Read 2 more answers
A building casts a shadow that is 18 ft long. A woman standing near the building is 5.75 ft tall and 4 feet long. What is the he
Lynna [10]

Answer:

25 feet 6 inches

Step-by-step explanation:

Assuming that the woman is standing up straight, you have a situation where you have two similar right triangles. The legs of the smaller triangle are the woman's height and the length of her shadow, and the legs of the larger triangle are the building's height and the length of its shadow. We know that the sides of similar triangles are proportional, so we can write:

5ft8in =2ft=x%2Aft%2F18ft

Now you need to cross-multiply and solve for x, but multiplying feet times feet and inches is a messy calculation. Changing 5 ft 8 inches to 5 and 2/3 feet is messy also. My recommendation is to convert everything to inches, and then convert back to feet and inches when you are done.

5 ft 8 inches = (5 *12) + 8 = 68 inches

4 ft = 4 * 12 = 48 inches, and

18 ft = 18 * 12 = 216 inches.

Now the proportion looks like:

68%2F48=x%2F216, so

48x=14688 after cross-multiplying, and

x=306 after dividing by 48. So the building is 306 inches tall. But we want to know the height of the building in feet and inches. To convert back to feet and inches from inches, just do integer division by 12 where your answer is expressed as a quotient and a remainder. The quotient is the number of feet, and the remainder is the number of inches.

306 = 25 remainder 6, so the answer is 25 feet 6 inches.

Note that this answer makes sense. 5'8" is nearly 6'. 6' is one and a half times 4 feet, so the woman is a little less than one and a half times taller than her shadow is long. One and a half times the building's 18 ft shadow is 27 feet, and that is a little bit more than the 25'6' answer that we

5 0
3 years ago
At rolling hills middle school, the ratio of the total number of students to the number of students with pets is 3 to 1. If ther
Roman55 [17]
3/1 = 243/x
243 = 3x
81 students
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2 years ago
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