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Leona [35]
3 years ago
5

PLSSSSS HELP ASAP PLSSSS !!!

Mathematics
2 answers:
raketka [301]3 years ago
7 0

6x+3 = 7x-12

6x-7x=-12-3

-x= -15  from now on we know that x is now 15

so the answer is 15

<h2>From Cambridge</h2>
Flura [38]3 years ago
4 0

Answer:

15

Step-by-step explanation:

6x+3 = 7x-12

6x-7x=-12-3

-x= -15

x= 15

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A mouse is trapped in a maze. To find his way out he walks 10 m, makes a 90° right turn, walks 5 m, makes another 90°, and walks
zimovet [89]

5.8m

use Pythagoras Theorem

4 0
3 years ago
1. Un conjunto de tablero de baloncesto que se vende por $ 79 tiene un descuento del 15%. ¿Cuál es el precio de venta?
GalinKa [24]
El Precio en total sera $67.15 el 15% sera $11.85
3 0
3 years ago
Scientists researching the effect of dietary supplements such as multivitamins and supplements of folic acid, magnesium or zinc
yarga [219]

Answer: Null hypothesis : H_0: p_1=p_2

Alternative hypothesis : H_a: p_1\neq p_2

Step-by-step explanation:

Let p_1 be the proportion of women using supplements and p_2 be the proportion of women who did not to have died during that period .

Then the set of hypothesis for testing if the proportion of women elderly women who use dietary supplements is different than those who do not will be :-

Null hypothesis : H_0: p_1=p_2     [∵ it takes equality sign]

Alternative hypothesis : H_a: p_1\neq p_2    [∵ it takes ≠ sign to show difference]

6 0
3 years ago
An object is dropped from a small plane. As the object falls, its distance, d, above the ground after t seconds, is given by the
DedPeter [7]

<em><u>The inequality can be used to find the interval of time taken by the object to reach the height  greater than 300 feet above the ground is:</u></em>

d = -16t^2 + 1000

<em><u>Solution:</u></em>

<em><u>The object falls, its distance, d, above the ground after t seconds, is given by the  formula:</u></em>

d = -16t^2 + 1000

To find the time interval in which the object is at a height greater than 300 ft

Frame a inequality,

-16t^2 + 1000 > 300

Solve the inequality

Subtract 1000 from both sides

-16t^2 + 1000 - 1000 > 300 - 1000\\\\-16t^2 > -700

16t^2 < 700\\\\Divide\ both\ sides\ by\ 16\\\\t^2 < \frac{700}{16}\\\\Take\ square\ root\ on\ both\ sides\\\\t < \sqrt{\frac{700}{16}}\\\\t < \pm 6.61

Time cannot be negative

Therefore,

t < 6.61

And the inequality used  is: -16t^2 + 1000>300

6 0
3 years ago
Beth won 45 lollipops. She gave away some and now she has 28 remaining. How many did she give away?
lapo4ka [179]
Just subtract 45 - 28 = 17 lollipops

Hope this helps!!!
4 0
3 years ago
Read 2 more answers
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