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nexus9112 [7]
3 years ago
11

Chọn phát biểu đúng trong các phát biểu sau đây :

Mathematics
1 answer:
noname [10]3 years ago
4 0

Step-by-step explanation:

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Sarah claims that when you divide, the number you are dividing always gets smaller. John says this is not true. Who is correct?
inn [45]

Answer:

D

Step-by-step explanation:

John is correct as Dividing does not always gets the quantity smaller for example if we divide 4 by 0.5

We get

4/0.5= 8

6 0
3 years ago
Dave delivered 52 newspapers all together on Saturday and Sunday. He delivered 8 more newspapers on Sunday than on Saturday. How
Harman [31]
Let x=papers on Saturday and y=papers on Sunday

First make equations for the information given to you

x+y=52   (total papers)            and              y= x+8     (he sold 8 more on Sunday)

then since you know y=x+8 then substitute it in the other equation like so

x+(x+8)=52 which means 2x+8=52 which means 2x=44 and therefore x=22

the problem however asks for sunday and not saturday, so solve for y now

y=x+8 which means y=22+8 which means y=30

He sold 30 papers on Sunday
4 0
3 years ago
Which angles are supplementary to AFE. Select all that apply.
marysya [2.9K]

Answer:

B and C

Step-by-step explanation:

They are on the same line so they ad up to 180 and are supplementary

7 0
3 years ago
-5t^2+10t+22 does the ball reach a height of 35m
Alika [10]

Answer:

Step-by-step explanation:

35=-5t²+10t+22

5t²-10t+13=0

disc =b²-4ac=(-10)²-4×5×13=100-260=-160<0

t is imaginary.

So ball never reaches a height of 35 m

3 0
3 years ago
A team consisting of Persephone, Neptune, Ares, and Roger need to select one person to be team captain. In how many ways can thi
Lorico [155]

Answer: 4 ways

Step-by-step explanation:

Given : A team consisting of Persephone, Neptune, Ares, and Roger need to select one person to be team captain.

The number of people in the team = 4

The number of ways to select the team captain from 4 members is given by :-

^4P_1=\dfrac{4!}{(4-3)!}=\dfrac{4\times3!}{3!}=4

Hence, there are 4 ways to select team captain.

5 0
3 years ago
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