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Lana71 [14]
3 years ago
5

91 is 130% of what number w?​

Mathematics
1 answer:
Nitella [24]3 years ago
5 0

Answer:

70

Step-by-step explanation:

91 ÷ 1.3 = 70

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Seraphina is driving two hours to visit her family. For the first hour, she traveled at a speed of 56 miles per hour. Then, in t
wel

Answer: 21.1 %

Step-by-step explanation:

4 0
3 years ago
Which ordered pair in the form(x,y) is a solution of this equation?
Gnom [1K]

The ordered pair is (-2, -3)

Step-by-step explanation:

  • Step 1: To find whether an ordered pair is a solution, substitute values of x and y and see whether it satisfies the equation.

(-3, -2) ⇒ 7 × -3 - 5 × -2 = -21 + 10 = -11 ≠ 1

(-2, -3) ⇒ 7 × -2 - 5 × -3 = -14 + 15 = 1

(0, 4) ⇒ 0 - 5 × 4 = 20 ≠ 1

(4, 0) ⇒ 7 × 4 - 0 = 28 ≠ 1

So the ordered pair is (-2, -3)

8 0
3 years ago
Can someone plz help me solved this problem I need help ASAP plz help me! Will mark you as brainiest!
Over [174]

Step-by-step explanation:

initial speed = 272 ft/s

h = -16t² + 272t

a. 1120 = -16t² + 272t we change a bit into

16t² - 272t + 1120 = 0 then divide all with factor 16

t² - 17t + 70 = 0

(t - 10)(t - 7) = 0

t = 10 and t = 7

7 s when it goes up and 10 sec when the rocket goes down.

b. 1152 = -16t² + 272t we change a bit into

16t² - 272t + 1152 = 0 then divide all with factor 16

t² - 17t + 72 = 0

(t - 9)(t - 8) = 0

t = 9 and t = 8 sec

c. since the answer of a and b is:

7 sec and 8 sec the rocket goes up but at 9 sec and 10 sec the rocket goes down then we can take conclusion that the maximum height is reached at 8.5 s

so how long the rocket in the air?

goes up : 8.5 sec

goes down : 8.5 sec

total = 17 sec

8 0
3 years ago
BRAINLIESTT ASAP! PLEASE HELP ME :)<br> thanks!
fredd [130]

Answer:

A is correct, x=7, AB=20

Step-by-step explanation:

All of the options say x=7 so you can just input 7 into 4x-8 to find AB

4(7)-8=AB

28-8=AB

20=AB

Hope this helps, please mark brainliest :)

3 0
3 years ago
| 3 x - 2 | = 4x + 4
Ugo [173]

Answer: -2/7

|3x - 2| - 4x = 4

1) (3х - 2) - 4х = 4, if 3x - 2 >= 0

2) -(3x - 2) - 4x = 4, if 3x - 2 < 0

1)

3х - 4х = 4 + 2

-x = 6

x = -6

3х - 2 >= 0

3х >= 2

x >= 2/3 - wrong

2)

-3х + 2 - 4х = 4

-7х = 2

x = -2/7

3x-2<0

3x<2

3(-2/7)<2-right

5 0
3 years ago
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