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almond37 [142]
3 years ago
10

What is 500 divided in the ratio 3:7

Mathematics
1 answer:
telo118 [61]3 years ago
6 0
3x+7x=500\\\\
10x=500\ \ \ \ | divide\ by\ 10\\\\
x=50\\\\
3x=150\\
7x=350\\\\
500\ divided\ in\ the\ ratio\ 3:7\ is\ 150:350.
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The length of a rectangle is 5 inches more than the width. the perimeter is 30 inches. find the length and the width
xeze [42]

Answer:

Length = 10 inches

Width = 5 inches

Step-by-step explanation:

p = 2w + 2l

l = w + 5

30 = (2w + 2(w + 5))

30 = 4w + 10

20 = 4w

w = 5

l = w + 5

= 5 + 5

= 10

6 0
2 years ago
Which number is not in scientific notation?
Hitman42 [59]

Answer:

A 9 ⋅ 1019

B 7.8 ⋅ 106

C 1.45 ⋅ 10−7

D 0.33 ⋅ 10−15

Step-by-step explanation:

A 9 ⋅ 1019

B 7.8 ⋅ 106

C 1.45 ⋅ 10−7

D 0.33 ⋅ 10−15

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3 years ago
AngleFAE measures 72º. What other angle must measure
swat32

Answer: FBE

Step-by-step explanation:

EDGE

8 0
3 years ago
Assume that we have two events, A and B, that are mutually exclusive. Assume further that we know P(A) = 0.50 and P(B) = 0.20. (
True [87]

Answer:

a) 0

b) 0

c)No

d) Mutually exclusive event are not independent and when events are independent they cannot be mutually exclusive.

Step-by-step explanation:

From the question,

P(A) = 0.50

P(B) = 0.20.

a) Event A and event B cannot take place at the same time which means they are mutually exclusive, and whenever an event is not possible to take place, then the probability is Zero. Therefore,

P(A ∩ B)= 0

b) CHECK THE ATTACHMENT BELOW

c)No, the reason been that when event are mutually exclusive therefore, they cannot take place at the same time. Because when one event takes place here the other will not take place.

d) Mutually exclusive event are not independent and when events are independent they cannot be mutually exclusive.

6 0
3 years ago
PLEASE HELP ASAP I have no idea how to solve this pls pls pls
xz_007 [3.2K]

Answer:

Step-by-step explanation:

you have to use trigonometric functions

cos 30 = adj. /hyp.

cos 30 = 12 / y

y = 12/cos 30 ≅13.86

tan 30 = opp./adj

tan30 = x / 12

x = 12 tan30 ≅6.93

5 0
3 years ago
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