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elena55 [62]
2 years ago
6

The graph shows Elizabeth’s speed during a 55-minute run. During which time interval did Elizabeth’s speed increase?

Mathematics
1 answer:
gladu [14]2 years ago
5 0

Answer:

0 - 5

Step-by-step explanation:

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V = u + at<br> u = 2<br> a = -5<br> t = 1/2 (0.5)
Vsevolod [243]

v = 2 + ( - 5 \times 0.5) \\ v = 2  - 0.5 \\ v = 1.5
8 0
3 years ago
a survey mr thrones class shows that 5 out of 8 students will by lunch how many out of 720 students in the school will buy lunch
never [62]

5/8 that's how ratio of students that will buy lunch. so in order to find number students who will buy the lunch out of 720, just multiply 720 with 5/8 ie, 720x5/8 ie 450.

450 is answer

8 0
2 years ago
The sum of the 6th and seventh terms in a sequence of 12 numbers with a common difference is 16. What is the Sum of the number s
patriot [66]

Answer:

96

Step-by-step explanation:

commom difference = d

a₆ + a₇ = 16

a₅ + a₈ = (a₆ - d) + (a₇ + d) = a₆ + a₇ = 16

a₄ + a₉ = (a₆ - 2d) + (a₇ + 2d) = a₆ + a₇ = 16

Similarly,

a₃ + a₁₀ = 16, a₂ + a₁₁ = 16, a₁ + a₁₂ = 16

so

a₁ + a₂ + ... + a₁₁ + a₁₂ = 6 x 16 = 96

6 0
1 year ago
A train leaves a station and travels north at a speed of 105105 ​km/h. twotwo hours​ later, a second train leaves on a parallel
hram777 [196]
Let x = hours to meet

train one has a 2 hour head start or 210 km head start

210 + 105x = 135x
30x = 210
x = 7 hours to meet
6 0
3 years ago
HELP MATH NEED ASAP WILL GIVE BRAINLY TO CORRECT ANSWER!
rjkz [21]

1.the 2d chart is the best chose

5 0
3 years ago
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