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chubhunter [2.5K]
3 years ago
5

Calculate Zz = 81z = 30z = 15z = 20​choose the only correct answer

Mathematics
2 answers:
777dan777 [17]3 years ago
4 0
Correct Answer - z=15 :)
klemol [59]3 years ago
3 0
Z = 15 ( Use Pitago’ Theorem)
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Out of a total of 300 animal in a zoo 45 are bird's what percent of the animal in the zoo are bird's
Neporo4naja [7]
The percentage of birds in the zoo will be 15%
4 0
3 years ago
To create a unique house paint color, Melton mixes together a sample that is 12 gallons of red, 2.5 gallons of yellow and 0.5 ga
Mariana [72]

Answer:

180

Step-by-step explanation:

total ratio is 15

gallons of red =

\frac{12}{15}  \times 6 \times  \frac{15}{0.5 }  \\  \\  = 144

gallons of yellow

30

gallons of blue

\frac{0.5}{15}  \times 30 \times  \frac{15}{2.5}  \\  \\  = 6

total =144+30+6

=180

4 0
2 years ago
Read 2 more answers
How to find an decimal out of percentage
irinina [24]

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7 0
3 years ago
1.)<br> What is the solution to the system of equations below?<br> y = 2x + 8<br> 3(-2x + y) = 19
-BARSIC- [3]

Answer:

y = 2x + 8

6x + 3y = 19

6x + 3(2x + 8) = 19

6x + 6x + 24 = 19

12x = -5

x = -5/12

y = 2(-5/12) + 8

y = -5/6 + 48/6

y = 43/6

3 0
3 years ago
Jack spends 1 1/2 as long on his homework as Jill. Last week Jill spent 9 1/2 hours doing homework. How long did Jack spend doin
alina1380 [7]
The amount of time Jill spent to do her homework 
= 9 1/2 hours. which equals to  570 minutes.

Which means, the amount of times Jack needed to do his is 
= 570 minutes x 1.5
= 855 minutes which equals to 14 1/4 hours

hope this helps
7 0
3 years ago
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