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3 years ago

Natalie can do 26 pushups in 2 minutes. How many could she do in 7 minutes?

Mathematics

2 answers:

il63 [147K]3 years ago

7 0

91 push ups in 7 minutes

satela [25.4K]3 years ago

3 0

Answer:

91 push-ups

Step-by-step explanation:

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Bill wants to make 10Lcof a 30% saline solution by mixing together a 60% saline solution and a 10% saline solution. How much of

erastovalidia [21]

10 L of 30 % saline solution can be formed by mixing 4 L of 60 % saline solution and 6 L of 10 % saline solution.

Step-by-step explanation:

Let x be the number of liters of 60% saline solution

Now we require 10 L of 30% saline solution.

Liter soln % liters saline %

30 % 10 0.3

60 % x 0.6

10 % 10-x 0.1

Now forming the algebraic equation,

0.6x + 0.1 (10-x) = 10 (0.3)

0.6x + 1 - 0.1 x = 3

0.5 x = 2

x = 4 ( 4 l of 60 % solution is required. So 10 % saline solution required is 10 - 4 = 6 L).

Hence, 10 L of 30 % saline solution can be formed by mixing 4 L of 60 % saline solution and 6 L of 10 % saline solution.

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3 years ago

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Line A is defined by the equation y=-3x-2

const2013 [10]

THE ANSWER IS: D. y=-3x+11

when two lines are parallel, they share the same slope, which is -3

then plug in the given point into slope intercept form then solve for standard form

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2 years ago

Solve each equation 11.3 - 7.2f = -3.82

Tema [17]

11.3-7.2f = -3.82
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3 years ago

Plsss help will mark brainliest

DiKsa [7]

C, because 7 divided, or over nine, is 7/9
Hope this helps!

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3 years ago

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a running relay team ran a 400 meter race in a record-setting time of 36 seconds.what was their average speed to the nearest ten

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1 year ago