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mash [69]
3 years ago
12

In a competition, the ratio of the number of tickets Mark collected to the number of tickets Julia collected is 4:3. Julia colle

cted 36 tickets. How many tickets did they collect altogether
Mathematics
1 answer:
Afina-wow [57]3 years ago
3 0

Answer: 84 tickets

Step-by-step explanation:

We are told the ratio of the number of tickets Mark collected to the number of tickets Julia collected is 4:3

\frac{M}{J}=\frac{4}{3} (1)

In addition, we are told Julia collected 36 tickets:

J=36 (2)

Substituting (2) in (1):

\frac{M}{36}=\frac{4}{3} (3)

Isolating M:

M=48 (4)

Adding Mark's tickets to Julia's:

M+J=48+36=84

Therefore, both collected 84 tickets.

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Please answer these questions asap please!!! Thank you!
Len [333]

Answer:

a= 1%

b= 0.1%

c= 0.1875% probably have to round

Step-by-step explanation:

a= 2/2= 1

B= 1/10=0.1

c= 1.5/8= 0.1875

6 0
3 years ago
Two workers finished a job in 12 days. How long would it take each worker to do the job by himself if one of the workers needs 1
Lorico [155]

Two workers finished a job in 7.5 days.

How long would it take each worker to do the job by himself if one of the workers needs 8 more days to finish the job than the other worker?

let t = time required by one worker to complete the job alone

then

(t+8) = time required by the other worker (shirker)

let the completed job = 1

A typical shared work equation

7.5%2Ft + 7.5%2F%28%28t%2B8%29%29 = 1

multiply by t(t+8), cancel the denominators, and you have

7.5(t+8) + 7.5t = t(t+8)

7.5t + 60 + 7.5t = t^2 + 8t

15t + 60 = t^2 + 8t

form a quadratic equation on the right

0 = t^2 + 8t - 15t - 60

t^2 - 7t - 60 = 0

Factor easily to

(t-12) (t+5) = 0

the positive solution is all we want here

t = 12 days, the first guy working alone

then

the shirker would struggle thru the job in 20 days.

8 0
3 years ago
Read 2 more answers
A 7 cm x 5 cm rectangle sits inside a circle with radius of 6 cm.
LenaWriter [7]

Answer:

78.04 square cm

Step-by-step explanation:

Area of shaded region = area of circle - Area of rectangle

= \pi \:  {r}^{2}  - l \times w \\  = 3.14 \times  {6}^{2}  - 7 \times 5 \\  = 3.14 \times 36 - 35 \\  = 113.04 - 35 \\  = 78.04 \:  {cm}^{2}

3 0
3 years ago
Is 0,4,8,12 an arithmetic sequence?
Aneli [31]
Yes it is!!!! :))) by 4
6 0
3 years ago
Solve the inequality: x/-3 < -10
seropon [69]

Answer:

x>30

Step-by-step explanation:

x/-3<-10

x<-10*-3

x<30

x>30

8 0
3 years ago
Read 2 more answers
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