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daser333 [38]
4 years ago
12

Someone please help me

Mathematics
1 answer:
Natasha2012 [34]4 years ago
4 0

Answer:


Step-by-step explanation:

r+2r+3r+4r

r

=

10r

r

=10

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State whether the equation represents exponential​ growth, exponential​ decay, or neither.
raketka [301]

Answer:

Sryy

Step-by-step explanation:

i just need points

3 0
3 years ago
From 10:00 am to noon, the rise in temperature is 4 degrees C, and from 3:00 pm to 5:00 pm, the fall in temperature is 6 degrees
lyudmila [28]

Answer:

(a) 2 degree celsius per hour

(b) 3 degree celsius per hour.

Step-by-step explanation:

From the question,

(a) Avearge rate of rise in temperature per hour(T') = Rise in temperature(T)/Time required for the rise(t).

T' = T/t.................... Euqation 1

Rise in temperature (T) = 4 degree celsius, t = 10.00 am to noon = 2 hours.

Substitute into equation 1

T' = 4/2

T' = 2 degree celsius per hour.

(b) Also,

Average rate of fall in temperature per hour (T') = Fall in temperature (T)/Time(t)

T' = T/t

Given: T = 6 degree celsius, t = 3:00 pm to 5:00 pm = 2 hours

T' = 6/2

T' = 3 degree celsius per hour

3 0
3 years ago
(X+1)-(-2x - 5)<br><br> Help
Diano4ka-milaya [45]

answer: 3x + 6

x + 1 + 2x + 5 = 3x + 6

remember to first distribute the negative to both terms in the second parentheses which makes the 2x and 5 both positive and then just combine like terms . pls mark brainliest

8 0
3 years ago
Read 2 more answers
If the two congruent angles (angles A and B) of an isosceles
Darina [25.2K]

Answer:

If the third angle is x, the other two angles are 2x

 

The measure of the angles of a triangle must add up to 180 degrees

 

x + 2(2x) = 180

 

x + 4x = 180

 

5x = 180

 

x = 36

 

The other two angles are 2x = 2 * 36 = 72

 

The three angles are 36, 72, and 72 degrees

Step-by-step explanation:

EXAMPLE-

x+2x+2x=180

5x=180

x=180/5

x=36º third angle

the equal angles are each 2*36=72º

3 0
3 years ago
If 2/3=x/12 , what is the value of x?
Andru [333]
2/3=x/12
Use cross multiply
2*12=3*x
24=3x
Divided both side by 3
24/3=3x/3
x=8
Check:
2/3=x/12
Substitute x with 8
2/3=8/12
2/3=(8/4)/(12/4)
2/3=2/3. As a result, x=8. Hope it help!
8 0
3 years ago
Read 2 more answers
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