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KiRa [710]
3 years ago
6

3 x A = 30 + 30 it’s a 3rd grade problem but don’t know the answer

Mathematics
1 answer:
xenn [34]3 years ago
8 0

Answer: A=20

Step-by-step explanation:

3×A=30+30............eqn 1

3A=60

A=60/3

A=20

Substitute A=20 into equation 1

3x20= 30+30

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Is the answer B correct?
VashaNatasha [74]
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In a study, researchers wanted to measure the effect of alcohol in the development of the hippocampal region in adolescents. The
lbvjy [14]

Answer:

Kindly check explanation

Step-by-step explanation:

Given :

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Tcritical value = 2.045

Null hypothesis :

H0: μ = 9.08

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Decision region :

Reject Null ; if

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Using the α - level (confidence interval) 0.05

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4 0
2 years ago
DeAngelo is training for a half marathon. Today he is running 13.25 miles. He jogs for the first half hour at a rate of 5.5 mile
Nezavi [6.7K]
For this case, the first thing we must do is define a variable.
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 Answer:
 
DeAngelo's rate for the last 1.5 hours of his run is 7 miles per hour.
5 0
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