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3 years ago

1. Two times the sum of a number and five is 26?

Mathematics

2 answers:

ser-zykov [4K]3 years ago

5 0

Answer:

1. x = 8

2. 8(x+9)

Step-by-step explanation:

2(x + 5) = 26

2x + 10 = 26

2x = 26 - 10

2x = 16

x = 16/2

x = 8

8(x+9)

Elanso [62]3 years ago

5 0

Answer:

Hey there!

1. 2(n+5)=26

n+5=13

n=8

2. 8(n+9)

Let me know if this helps :)

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Find the leg (in inches) of the triangle whose hypotenuse is 10 inches and whose other leg is 3.25 inches. Round to the nearest

alekssr [168]

Answer:

Other Side (B) = 9.45 inches

Step-by-step explanation:

Given:

Hypotenuse = 10 inches

Other Side (A) = 3.25 inches

Find:

Other Side (B) = ?

Computation:

According to Pythagoras theorem:

$Hypotenuse^2= (Perpendicular)^2+(Base)^2\\\\Hypotenuse^2= (A)^2+(B)^2\\\\10^2= (3.25)^2+(B)^2\\\\100=10.5625 +(B)^2\\\\89.4375 = (B)^2\\\\B=\sqrt{89.4375}\\\\B=9.4571$

Other Side (B) = 9.45 inches

7 0

3 years ago

PLEASE HELP ILL GIVE BRAINLIESTTTT

Yakvenalex [24]

Answer:

f(-3) = -2

f( 1 ) = - 1

If f(x) = -2, then x = 3

If f(x) = 2, then x = -5

Step-by-step explanation:

Looking at the graph, we can easily determine the value of the given functions.

f(-3) = -2 (This function basically asks, if x = -3, what is the value of y? In the graph, it shows that the value of y is -2).

f( 1 ) = - 1 (Similarly, this function asks, if x = 1, what is the value of y? In the graph, it shows that the value of y is -1).

If f(x) = -2, then x = ? ←← For this particular question, you're given the value of y = -2. All you need to do is look at the graph to see what is the value of x given that y = -2. Even though it is not clearly labeled on the graph, it shows the value of x = 3 (it is right where the end arrow is located).

Therefore, If f(x) = -2, then x = 3.

If f(x) = 2, then x = ? ←← Similar to the previous question, you're given the value of y = 2. In the graph, one of the given points has the coordinates of (-5, 2). This gives you the value of x = -5.

Therefore, If f(x) = 2, then x = -5.

Please mark my answers as the Brainliest if you find my explanations helpful :)

3 0

2 years ago

Please tell me? thx for ur help <3

motikmotik

Answer:

x = 63, y = 27

Step-by-step explanation:

x and 117 are adjacent angles and sum to 180°

x + 117 = 180 ( subtract 117 from 180 )

x = 63

x and y sum to 90°

x + y = 90

63 + y = 90 ( subtract 63 from both sides )

y = 27

4 0

3 years ago

Read 2 more answers

Please solve these coin problems:

ratelena [41]

1)
Solving from system of equations:
x- amount of 1 cent stamps
y- amount of 33 cent stamps
$\left \{ {{1*x+33*y=18,40} \atop {x+y=80}} \right.\\x=80-y\\0,01*(80-y)+0,33y=18,40\\0,8-0,01y+0,33y=18,40\\0,32y=18,40-0,8\\0,32y=17,60 /:0,32\\y=55\\x=80-55=25$
2)
x- amount of 20 cent stamops
y-amount of 34 cent stamps
From system of equations:
$\left \{ {{0,2x+0,34y=19,90} \atop {x+y=75}} \right.\\x=75-y\\0,2(75-y)+0,34y=19,90\\ 15-0,2y+0
,34y=19,90\\-0,2y+0,34y=19,90-15\\0,14y=4,90/:0,14\\ y=35\\x=75-35=40$

6 0

3 years ago

Train A moves every 2 minutes, Train B moves

horrorfan [7]

Answer:

in 84 minutes or 1 hr, 24 min

Step-by-step explanation:

you need to find the least common multiple of 2, 3 and 28 which is 84

6 0

2 years ago