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Mazyrski [523]
2 years ago
10

Can u solve this questions.​i don't know what to do.

Mathematics
1 answer:
PilotLPTM [1.2K]2 years ago
5 0

Answer:

8

Step-by-step explanation:

average is calculated as

average = \frac{sum}{count}

\frac{sum}{2} = 13 ( multiply both sides by 2 )

sum of 2 eldest = 26

Then for the 4 children

average = \frac{26+2+4}{4} = \frac{32}{4} = 8

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The tree diagram below shows all of the possible outcomes for flipping three coins.
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2 years ago
Solve the equation for x.<br><br> 1<br> 4<br> (2x + 8) = −16
dimaraw [331]

Answer:Let's solve your equation step-by-step.

1

4

(2x+8)=−16

Step 1: Simplify both sides of the equation.

1

4

(2x+8)=−16

(

1

4

)(2x)+(

1

4

)(8)=−16(Distribute)

1

2

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Step 2: Subtract 2 from both sides.

1

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4 0
3 years ago
Read 2 more answers
Find 2x2 - 2z4 + y2 - x2 + z4 if x = -4, y = 3, and z = 2.
Alexxandr [17]
X = - 4;  y = 3;  z = 2;
2 x² - 2 z^4 + y² - x² + z^4 =
= 2 * (-4)² - 2 * 2^4 + 3² - ( -4)² + 2^4 =
= 2 * 16 - 2 * 16 + 9 - 16 + 16 =
= 32 - 32 + 9 - 16 + 16 =  9 

8 0
3 years ago
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