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FrozenT [24]
3 years ago
5

Your friend surveyed 100 people who took either vitamin C, zinc, or

Mathematics
1 answer:
adelina 88 [10]3 years ago
7 0

Answer:

27 : 100

Step-by-step explanation:

Given :

__________ no cold ____ cold _____ total

Vitamin C ___ 41 ________ 15 ______ 56

Zinc _______ 12 _________5 ______ 17

Echinacea __ 21 _________ 6 ______ 27

Total ______ 74 _________ 26 ____ 100

The ratio of people who took Echinacea :

Number of people who took Echinacea : total number of people in the survey

From the TOTAL column:

Number of people who took Echinacea = 27

Total Number of people in survey = 100

Hence, ratio equals :

27 : 100

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In the rhombus, angle 1=9x, angle 2=y+x, and angle 3=15z. Find the value of each variable. The diagram is not to scale.
notka56 [123]
From the diagram, all three angles are 90° (Diagonals of a Rhombus)

Angle 1 = 9x = 90
⇒ 9x = 90
x = 90/9
x = 10


Angle 2 = y + x = 90
⇒ y + x = 90
since x = 10,
y + 10 = 90
y = 90 - 10
y = 80


Angle 3 = 15 z = 90
⇒ 15z = 90
z = 90/15
z = 6

Answer is Option C
<span>C. x = 10, y = 80, z = 6</span>
3 0
3 years ago
A new car is purchased for 19000 dollars. The value of the car depreciates at 11.25% per year. What will the value of the car be
Doss [256]

Answer: 11.25% depriciation means 11.25% amount decrases per year.

i.e for 1year (1-0.1125)19000=0.8875*19000

so for 14 years multiply 0.08875 14 times to 19000.

Your answer will be arrived.

If any doubt comment.

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Please help. ❗❗❗❗❗<br>osmqbshxissjwvgxkoqjwvwnmddk​
Lunna [17]

Answer:

C

Step-by-step explanation:

This makes the most sense.

7 0
3 years ago
3,969 + b^2 = 11,025
ludmilkaskok [199]

Answer:

b=84

Step-by-step explanation:

from your equation, subtract 3969 from each side

you are left with b^2=7056

sqrt b^2 = sqrt 7056

b=84

7 0
3 years ago
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ASSUME 3 IN EVERY 2000 STUDENTS AT A LOCAL COMMUNITY COLLEGE HAVE TO QUIT DUE TO A SERIOUS HEALTH ISSUE. AN INSURANCE COMPANY OF
WARRIOR [948]
From 2000 students paying $50 a year, they make $100,000. Lets say the 3 students who get in serious trouble with health use the whole policy of $12,000. thats $36,000. So the insurance company made $64,000 profit.
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3 years ago
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