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otez555 [7]
3 years ago
10

(5 + 4 - 2) x (-2)=? A.-14 B.14 C.-22 D.22

Mathematics
2 answers:
never [62]3 years ago
8 0
<span>(5 + 4 - 2) x (-2) equals 
</span>A.-14

Sveta_85 [38]3 years ago
7 0
(5 + 4 - 2) x (-2)
= (9 - 2) x (-2)
= (7) x (-2)
= - 14 (Answer A)
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The children from a football club are put into rows in the sports hall. When put into rows of 9 children, there are 2 children l
g100num [7]

We are told that the children from a football club are put into rows in the sports hall. When put into rows of 9 children there are 2 children left over. When put into rows of 12 children there are 2 children left over.

We will find least number of children in football club by finding LCM of 9 and 12.

Multiples of 9 are: 9, 18, 27, 36, 45, 54, 63,...

Multiples of 12 are: 12, 24, 36, 48, 60, 72, 84,...

We can see that least common multiple of 9 and 12 is 36.

We are told that 2 children left over from putting them into 9 and 12 children per row. To find least number we will add 2 to 36.

9\cdot4+2=36+2=38

12\cdot3+2=36+2=38      

\text{Least number of children in football club}=36+2=38

Therefore, the least number of children in the football club is 38.

5 0
3 years ago
The triangles are similar by the AA Similarity Postulate. Find the value of x.
cricket20 [7]
Line x is the midsegment of the triangle.

5/2= 2.5

I hope this helps!
~kaikers
3 0
3 years ago
Read 2 more answers
A cell phone plan charges $45.50 a month, plus $0.05 per text message. Write and graph an expression to find how many text messa
scoundrel [369]

Answer:

289 messages

equation: y=0.05x+45.5

graph: attached below

Step-by-step explanation:

We can write this in slope-intercept form, or y=mx+b. Since x is defined as the #of text messages, and 0.05 is the cost of a text message, 0.05 will be m. 45.5 is the base price, or the y-intercept, so it will be b.

Plugging in these numbers, we get y-0.05x+45.5

now we make y = 60, since that is the total amount they have

60=0.05x+45.5\\14.5=0.05x\\x=290

So, they can send 290 messages for 60, but they need the bill under 60, so 1 text message less will be 289, and that's enough.

4 0
2 years ago
HELP ITS URGENTTTTTTTT
Anna [14]

Answer:

\frac{1}{11}

Step-by-step explanation:

\frac{3}{12}\cdot \frac{4}{11}=\frac{1}{11}

Hope this helped! :)

7 0
3 years ago
Raphael is traveling in a straight line at a constant speed from point A to point B. His distance from point B in miles is-20t+
Afina-wow [57]

Answer:

Speed  = 20 mi/h

Explanation:

There are two points A and B

Distance between both the points are define with function -20t + 45 miles

where t represent the number of hours of travelling.

Now firstly we find the initial position. At starting time is 0, so we put t=0 in given function of t.

At t=0;

d₀ = -20(0) + 45 = 0 + 45 = 45 miles

Now we find the distance travell after starting first hour.

Than we put t = 1 in the given function

At t = 1;

d₁ = -20(1) + 45 = -20 + 45 = 25 miles

Difference between d₁ & d₀ is

45 - 25 = 20 miles

We see that in one hour, total distace is covered 20 miles

Now we use time, speed, distance relation

Speed = \frac{distance}{time}

S = \frac{20}{1}

S = 20 miles/hour

That's the final answer.

I hope it will help you.

5 0
2 years ago
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