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Ahat [919]
4 years ago
11

Two friends leave there houses and go towards each others, one friend runs 8 miles a hour, the other runs 7 miles an hour, there

houses are 20 miles apart they both leave at 6:00 pm, what time do they meet each other?

Mathematics
1 answer:
natka813 [3]4 years ago
3 0

hi there the answer is 7:30 see the picture

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Solve for x using the<br> distributive property.<br> 4(3x - 1) = 56
Liono4ka [1.6K]

Answer:

Step-by-step explanation:

12x - 4 = 56

add 4 to each side

12x = 60

divide each side by 12

x = 5

4 0
3 years ago
If f(x) = -5x - 1 and g(x) = √ x-6, what is<br> (fºg)(7)?
Stella [2.4K]

Answer:

-6

Step-by-step explanation:

(fog)(7) ➡ f(g(x))

g(7) = √7-6 ➡√1 = 1

f(1) = -5×1-1 ➡-5-1 = -6

4 0
3 years ago
¿En cuál de los siguientes intervalos están solo los números reales que pertenecen a ] –3 , 5 ] y no pertenecen a [ –1 , 7 [?
vitfil [10]

Complete question:

¿En cuál de los siguientes intervalos están solo los números reales que pertenecen a  ]- 3,5 ]   y no pertenecen a  [ –1 , 7 [  ?

A)  ]-3, -1[  

B)   ]- 3, -1 ]

C)  [-1,5]

D)  ]- 3,7[

E)  [5,7[

Answer:

A)  ]-3, -1[

Step-by-step explanation:

El intervalo ]- 3,5 ] incluye a todos los números que se encuentran entre -3 y 5. Es decir,

...-6  -5  -4  -3  -2  -1  0  1  2  3  4  5  6...

El intervalo  [–1 , 7[ excluye a los números que se encuentran entre -1 y 7, pero incluye a todos los números que sean menores a -1 y a todos los mayores a 7. Es decir,

...-7  -6  -5  -4  -3  -2  -1  0  1  2  3  4  5  6  7  8  9  10  11  12  13...

Para responder el problema, debemos encontrar aquellos números reales que se<u> </u><u>incluyan</u> dentro de <u>ambos intervalos</u>. Esto es,

            ]- 3,5 ] ...-6  -5  -4 <u> </u><u>-3  -2  -1</u>  0  1  2  3  4  5  6  7  8  9  10...

]- ∞ , -1[ ∪ [7,∞[...-6  -5  -4  <u>-3  -2  -1</u>  0  1  2  3  4  5  6  7 8  9  10...

Es decir que el intervalo  ]-3, -1[, corresponde a la intersección entre ambos conjuntos.

8 0
3 years ago
If the perimeter of the following triangle is 7x-2, what is the length of the unknown side?
Alinara [238K]

7x-2-(3x-9)-(x+7)

=7x-2-3x+9-x-7

=7x-3x-x-2+9-7

=3x

4 0
3 years ago
Pls help will give brainliest
HACTEHA [7]

Answer:

In step three.

I hope this helps and teaches you a lesson.

5 0
3 years ago
Read 2 more answers
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