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Mila [183]
2 years ago
15

Write the algebraic equation for the following: The sum of 4 and another number is 22.

Mathematics
2 answers:
s344n2d4d5 [400]2 years ago
5 0

Answer:

4+x=22

Step-by-step explanation:

Hope this helps

ElenaW [278]2 years ago
5 0
Answer:
X+4=22
Step-by-step explanation:
Let the other number= X
From the question
4+X= 22
X+4= 22
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When salt and water are combined, they form a salt or saline solution. How much ml of water must be added to 150 mL of an 80% sa
Vinvika [58]

Answer:

We must add 400 ml of water.

Step-by-step explanation:

We can use the following equation:

C_{i}V_{i}=C_{f}V_{f}

Where:

  • C(i) is the initial concentration of the solution (80%)
  • C(f) is the final concentration of the solution (30%)
  • V(i) is the initial volume (150 ml)
  • V(f) is the final volume

Now, we just need to solve the equation for V(f).

V_{f}=\frac{C_{i}V_{i}}{C_{f}}

V_{f}=\frac{80*150}{30}

V_{f}=400\: ml

Therefore, we must add 400 ml of water.

I hope it helps you!

3 0
3 years ago
A family paid $142.80 which included $6.80 in taxes for 4 play tickets each ticket costs the same amount how much did each perso
borishaifa [10]
$142.80-$6.80=$136 divided by 4 equals $34
8 0
3 years ago
Please answer quick! (Number the answers)
Oksana_A [137]

Answer:

All three are yes

Step-by-step explanation:

4. yes

5.yes

6.yes

8 0
3 years ago
Find the total surface area of the pyramid
quester [9]
To find the surface area of a pyramid, we need to find the area of all the faces and add them up. 

4 * 6 = 24
24 / 2 = 12

There are four sides (not including the base) in this pyramid, so we should multiply this by 4. 

12 * 4 = 48

Now, we find the area of the base.

6 * 6 = 36

We add up all of the numbers:

48 + 36 = 84

84 in^2 is the answer. 

Hope this helps!
3 0
3 years ago
Factor the expression.
nalin [4]
6x^2+14x+4
First factor out all numerical factors (=2 in this case)
2(3x^2+7x+2)
look for m,n such that m*n=3*2, m+n=7 => m=6, n=1
2(3x^2+6x  + 1x+2)
Factor 3x^2+6x into 3x(x+2)
2( 3x(x+2)+1(x+2) )
factor out common factor (x+2)
2(x+2)(3x+1)
=>
6x^2+14x+4=2(x+2)(3x+1)
8 0
3 years ago
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