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lakkis [162]
3 years ago
10

Tell whether the two rates form a proportion

Mathematics
2 answers:
rusak2 [61]3 years ago
5 0

Answer:

1. Yes

2. Yes

3. Yes

4. No

Step-by-step explanation:

Natali [406]3 years ago
3 0

Answer:

1.) 75 miles in 3 hours; 140 miles in 4 hours (no)

2.) 12 gallons in 4 minutes; 21 gallons in 7 minutes (yes)

3.) 150 steps in 50 feet; 72 steps in 24 feet (yes)

4.) 3 rotations in 675 days; 2 rotations in 730 days (no)

Step-by-step explanation:

when in fraction form you cross multiply

12/4=21/7

21*4=12*7

84=84

150/50=72/24

150*24= 50*72

3,600=3,600

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Can anbody help? I need this to pass my exam
melamori03 [73]

Answer:

the third one

Step-by-step explanation:

search up 30 - 60 - 90 triangle rule for references

6 0
3 years ago
Each person in a group of college students was identified by graduating year and asked when he or she preferred taking classes:
swat32

Answer:

<em>0.615</em>

Step-by-step explanation:

The frequency table is attached below.

We have to calculate, the probability that the student preferred morning classes given he or she is a junior.

i.e P(\text{Morning }|\text{ Junior})

We know that,

P(A\ |\ B)=\dfrac{P(A\ \cap\ B)}{P(B)}

So,

P(\text{Morning }|\text{ Junior})=\dfrac{P(\text{Morning }\cap \text{ Junior})}{P(\text{Junior})}

Putting the values from the table,

\dfrac{P(\text{Morning }\cap \text{ Junior})}{P(\text{Junior})}=\dfrac{\frac{16}{143}}{\frac{26}{143}}=\dfrac{16}{26}=0.615

3 0
3 years ago
If Mel opens his refrigerator door 36 times every day, about how many times will it be opened in April? Will the exact answer be
USPshnik [31]
1080 times in April
6 0
2 years ago
Read 2 more answers
3 2/4 pieces f cake after party eats 1 /2/3 next night how much does she have left
xz_007 [3.2K]
The person has 1 5/6 cake left because 3 2/4 - 1 2/3 = 1 5/6! Hope this helps ^0^

Explanation 
Rewriting Expression in different parts.
= 3 + 2/4 + 1 + 2/3.

Solving The Whole Number Parts.
3 + 1 = 4

Solving The Fraction Parts.
2/4 + 2/3 = ?

Find the LCD of 2/3 and 2/4 and Rewrite to solve with equivalent Fractions.
LCD = 12

6/12 + 8/12 = 14/12

Simplify the Fraction Part.
14/12 = 7/6

Simplify The Fraction Part Again.
7/6 = 1 1/6

Combining The Whole Numbers With The Fractions.
4 + 1 + 1/6 = 5 1/6 

Hope this helps ^0^! ;D
8 0
3 years ago
Solve for b 15=3b<br> Please I need help
IgorLugansk [536]
15=3b
15/3 = 3b/b
5= b

Isolate the variable by diving 3 on both sides
6 0
2 years ago
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