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Umnica [9.8K]
3 years ago
5

five years ago, Alicia was twice as old as her brother Alex. if Alicia is 13 years old, how old is Alex ? ​

Mathematics
1 answer:
Elodia [21]3 years ago
5 0

Answer:

8

Step-by-step explanation:

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A triangle is shown below what is the measure of the missing angle of the triangle note the triangle is not drawn to scale?
Nina [5.8K]

Answer: 65 degrees

Step-by-step explanation:180- 74+41 is 65 so

6 0
3 years ago
Kristen can run at 9kmh-1 and walk at 3kmh-1. She completed a 42km marathon in 6 hours. What distance did Kristen run during the
Hatshy [7]
Kristen completed 42 km. We will imagine that she ran all 6 hours. => 9 * 6 =54 km which is more than she actually completed. So we will find a 9 Multiple less than 42 km and that will be 36 km. (9 * 4 = 36 km completed by running) and the rest until 42 were completed by walking (3 * 2 = 6; 6 + 36 =42).

6 0
3 years ago
In a 45-45-90 triangle, the hypotenuse is 7, find both the legs
Nadya [2.5K]

Answer: If the hypotenuse is 7, the other 2 sides are \sqrt{24.5} 0r about = 4.95

Step-by-step explanation:  in a 45-45-90 triangle, the legs are equal.

a² + b² = c² .   2(a²) = 49  a² = 49/2

So find the square root of 24.5

\sqrt{24.5}   =4.949747468 .round to 4.95

7 0
3 years ago
Simplify the expression. Show your work. 22 + (32 – 4 2 )
Alex Ar [27]
You have to use PEMDAS:

Parentheses
Exponents
Multiplication
Division
Addition
Subtraction

First, do parentheses.

32 - 42 = -10

22 + -10 = 12

Answer = 12

Hope this helped
Have a great day :)


8 0
3 years ago
The gas tank of the truck holds 30 gallons the gas tank of a passenger car holds 50% less how many gallons does it hold?
love history [14]

Answer:

15 gallons

Step-by-step explanation:

To find how much the passenger car holds, we need to first find what 50% of the trucks gas tank holds.

Truck Gas Tank = 30 gallons

Now we find how much 50% of 30 is:

50% = 0.50

Total = 30 x 0.50

Total = 15 Gallons

So the passenger car holds 15 gallons of gas.

4 0
3 years ago
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