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Arturiano [62]
2 years ago
9

The ratio of the ages (in years) of three children is 2:4:5. The sum of their ages is 33. What is the age of each child?

Mathematics
1 answer:
pickupchik [31]2 years ago
5 0
We have 2x + 4x + 5x = 33 so 11x = 33 and x 3.

The children are 6, 12 and 15
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Please help me!! will give you brainliest!!!
mezya [45]
1. ( -1,2) is the same as (x=-1, y=2)
Substitute in your equation
y=3x-2
2=3•(-1)-2
2=-5 this is NOT true so (-1,2) is not a solution for the equation y=3x-2

2. (0,-2)
9x-6=3y
9(0)-6=3•(-2)
-6=-6 this is true so ( 0, -2) is a solution for the given equation
5 0
3 years ago
Please help, thank you:)
lesya [120]

Answer:

63.8

Step-by-step explanation:

a1 = -6.4 and d = 2.6

a(n) =  a1 + d(n - 1)

a(28) = -6.4 + 2.6(27)

a(28) = 63.8

8 0
3 years ago
"Bobby, you should know that the minimum legal speed for this highway is 45 MPH, and the maximum legal speed is 65 MPH."
Ket [755]

Inequalities help us to compare two unequal expressions. The inequality that represents the given statement is 45≤x≤ 65.

<h3>What are inequalities?</h3>

Inequalities help us to compare two unequal expressions. Also, it helps us to compare the non-equal expressions so that an equation can be formed.

It is mostly denoted by the symbol <, >, ≤, and ≥.

Given the maximum legal speed on the highway is 65 MPH, therefore, the value of x must not exceed 65 MPH.

x ≤ 65

Also, the minimum legal speed on the highway is 45 MPH, therefore, the value of x must not be less than 45 MPH.

45≤x

By combining the two inequalities, we will get,

45≤x≤ 65

Hence, the inequality that represents the given statement is 45≤x≤ 65.

The complete question is:

Write an inequality that accurately represents the following statement: "Bobby, you should know that the minimum legal speed for this highway is 45 MPH, and the maximum legal speed is 65 MPH."

Learn more about Inequality:

brainly.com/question/19491153

#SPJ1

4 0
1 year ago
What's is the answer ​
lina2011 [118]

Answer:

answers are A & C

Step-by-step explanation:

because the '-' sign indicates it's under 0 and common sense shows the rest.

3 0
3 years ago
Alex earns $7.50 per hour at his part-time job. Last week he worked 15 hours. This week he worked 21 hours. What is the total am
masha68 [24]

Answer:$270

Step-by-step explanation:

Alex earns 7.50 per hour he worked 15 hours last week and 21 this week so 15+21=36 and since it is 7.50 per hour you multiply that and get $270

3 0
2 years ago
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