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Leona [35]
3 years ago
11

To solve 5/7 - 2/n = 1/21

Mathematics
1 answer:
Usimov [2.4K]3 years ago
3 0

Answer:

the answer is n=3

Step-by-step explanation:

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Please answer this question with a complete answer
Lena [83]

Answer:

true, false, true

Step-by-step explanation:

first one:

|-3.17|=3.17

-3.17 cannot be negative away, so it must be positive.

second one:

|7.29|=7.29

not equal to -7.29

third one:

no matter if it's negative or positive, you always use absolute value (||) to measure distances between number lines

brainliest plz

8 0
3 years ago
Consider the two similar cones. What is the height of the smaller cone?
USPshnik [31]

Answer:

B

Step-by-step explanation:

Since the cones are similar then the ratio of corresponding sides are equal, that is

\frac{12}{18} = \frac{h}{45} ( h is the height of the smaller cone )

Cross- multiply

18h = 540 ( divide both sides by 18 )

h = 30 cm → B

7 0
4 years ago
Read 2 more answers
10. Find the slope. Make sure to reduce.
jeka94

Answer:

2

Step-by-step explanation:

Count each unit the blue line is covering.

5 0
3 years ago
If log, 7 -3 what is the value of x?<br> A. 21<br> B. 3V7<br> C. 37<br> D. 343
gregori [183]

Answer:

B

Step-by-step explanation:

logₓ 7 = 3

x³ = 7

Take cube root both sides

x= \sqrt[3]{7}

4 0
3 years ago
A machine can produce 250 items per hour. If the operator of the machine works 40 hours per week, how many items are made by thi
Rashid [163]
52 weeks per year

250 times number of hours=number of items produced

number of hours=number of hours worked per week times number of weeks
number of hourse=40 times 52=2080 hours

250 times 2080=520000 items
5 0
4 years ago
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