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Nutka1998 [239]
3 years ago
15

Find the value of x.

Mathematics
2 answers:
maksim [4K]3 years ago
6 0
You have it right. The answer is 20.
Irina-Kira [14]3 years ago
5 0
The 2 angles are complementary angles and need to equal 90 degrees.

Making an equation we have:

4x-10 + x = 90 degrees

Add like tems:
4x +x = 5x

Now we have:
5x-10 = 90

Add 10 to both sides:

5x = 100

Divide both sides by 5:

x = 100/5

X = 20


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You decide to study the effects of smoking, drinking and partying on life satisfaction. To do so, you assign people randomly to
Klio2033 [76]

Answer:

3 factors ; 18 total conditions

Step-by-step explanation:

The study focuses on the 3 factirs which impacts life satisfaction. Thses factors are : Smoking ; Drinking and Partying and they constitute the 3 different factor variables in the study.

For each factor variable, each has a number of different conditions ;

For smoking : 2 conditions (smoking and not smoking)

Drinking : 3 conditions (no alcohol, 1 / day ; several per day)

Partying : 3 conditions (no partying, 1 hour of partying / day, 2 hours of partying / day)

Total number of conditions :

(2 * 3 * 3) = 18 conditions

4 0
3 years ago
Santos flipped a coin 500 times. The coin landed heads up 225 times. Find the ratio of heads to total number of coin flips. Expr
Ad libitum [116K]
225/500
9:20
The ratio is 9 to 20
5 0
3 years ago
Read 2 more answers
The measure of two supplementary angels, s and t, are the ratio of 7:3. Find the value of s
Andrews [41]

7x+3x=180

10x=180

/10     /10

x=18

7x=s

7(18)=126

3x=t

3(18)=t

54=t

6 0
3 years ago
Read 2 more answers
Find the total area of the solid figure. <br><br> 60 sq. in.<br> 78 sq. in.<br> 90 sq. in.
seraphim [82]

Answer:

245.04

Step-by-step explanation:

The equation to a cylinder for area is A=2πrh+2πr^2

Fill in and solve.

A=2(3.14)(3)(10)+2(3.14)(3)^2

So using PEMDAS you get the answer 245.04

3 0
3 years ago
Read 2 more answers
Mr.Lee is shopping for a new electric water heater. Brand A costs $586 and uses 444 kilowatt-hours per month. Brand B costs $639
Nostrana [21]

Answer:

mr.young would save 11.39 per month on buying brand b

Step-by-step explanation:

0.17×444=75.48

0.17×377=64.09

75.48-64.09=11.39

6 0
3 years ago
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