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2 years ago

I need lots of help with 15 18 19 20 pls pls pls

Mathematics

1 answer:

Katena32 [7]2 years ago

5 0

Answer:

15) x = 112

18) x = 120

19) x = 31

20) x = 65

Step-by-step explanation:

I hope that is useful for you :)

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How do you convert 17 cmon minute to miles an hour

eimsori [14]

Answer:

0.006 miles per hour

Step-by-step explanation:

We are given;

Speed in cm per minute ( 17 cm per min)

We are required to convert cm per minute to miles an hour

we need to know that;

1 miles = 160934 cm

1 hour = 60 minutes

We can convert 17 cm to miles and 1 minute to hours

17 cm = 17 ÷ 160934 cm

= 17/160934

1 minute = 1/60 hour

Therefore;

In miles per hour;

= (17/160934) ÷ (1/60)

= 0.00634 miles per hour

= 0.006 miles per hour

Therefore, 17 cm per minute is equivalent to 0.006 miles per hour

4 0

2 years ago

A store sold 70 hammers and ranchers Hammer sold for $10 each in French so for five dollars each a total of 600.00 what's the co

MrMuchimi

Answer:

50 hammers and 20 wrenches.

Step-by-step explanation:

Let x represent number of hammers and y represent number of ranchers.

We have been given that a store sold 70 hammers and ranchers. We can represent this information in an equation as:

$x+y=70...(1)$

We are also told that each hammer sold for $10 and each rancher sold for five dollars resulting a total of 600.00. We can represent this information in an equation as:

$10x+5y=600...(2)$

From equation (1), we will get:

$x=70-y$

Substituting this value in equation (2), we will get:

$700-10y+5y=600$

$700-5y=600$

$700-700-5y=600-700$

$-5y=-100$

$\frac{-5y}{-5}=\frac{-100}{-5}$

$y=20$

Therefore, 20 wrenches were sold.

Now, we will substitute $y=20$ in equation (1) as:

$x+20=70$

$x+20-20=70-20$

$x=50$

Therefore, 50 hammers were sold.

5 0

3 years ago

A committee of 3 is being formed randomly from the employees at a school: 5 administrators, 34 teachers, and 4 staff. What is th

pav-90 [236]

Answer:0.000810

Step-by-step explanation:

Given

A committee of 3 members is formed using

5 Admin, 34 teachers, and 4 staff

Favorable outcomes are selecting 3 members as Administrators

total members =5+34+4=43

Probability is given by

$\Rightarrow P=\dfrac{\text{Favorable}}{\text{Total}}$

$\Rightarrow P=\dfrac{^5C_3}{^{43}C_3}=\dfrac{10}{43\times 41\times 7}\\\\\Rightarrow P=\dfrac{10}{12,341}=0.000810$

6 0

3 years ago

The dose of a strong cough medicine might be which of the following? 2mL, 200mL, 2L

Margarita [4]

To find the answer,we can picture how much the above value is by objects in real life.

2mL = about two drops of water

200mL = about a carton of milk/ a box of ornage juice

2L = 2000 × 10 mL = 20000 mL = The bottle of drinks that are in family/party size.

As we only take in small dosages of medicine, the best option would be 2mL.

Hope it helps!

6 0

3 years ago

6 hours and 42 minutes equals how many minutes

Tresset [83]

Answer:

402

Step-by-step explanation:

every hour is 60 minutes so multiply 6 by 60. 360 minutes for 6 hours. Then add 42 to it. 402

-plz mark brainliest-

5 0

3 years ago

Read 2 more answers