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andrew11 [14]
3 years ago
10

Where can we put parenthesis in 21 + 21 divided by 7 to make it equivalent to 6?

Mathematics
2 answers:
timurjin [86]3 years ago
7 0

Answer:

1.) \frac{(21+21)}{7}

2.)(\frac{21+21}{7} )

Step-by-step explanation:

\frac{21+21}{7}

If you just solve it like this, you get 6.

So, the parenthesis would go on the whole thing, or where 21+21 is.

1.) \frac{(21+21)}{7}

2.)(\frac{21+21}{7} )

DiKsa [7]3 years ago
4 0

(21+21)÷7

Step-by-step explanation:

21+21=42 42÷7=6 I'm not good at explaining lol

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Answer the problem :)
Tomtit [17]
The domain is the value of x. In this case, -3≤x≤7
the range is the value of y. in this case, -1≤y≤9

this is not a function, because the same x value has two corresponding y values. For example, when x=5, y=0 or y=8

It IS a function if every x value has only one corresponding y value. 
5 0
3 years ago
Y = -2 x - 5 what is the answer help
blondinia [14]

Answer:

x = -5/2

Step-by-step explanation:

0 = -2x - 5

2x = -5

Divide^

x = -5/2

Hope this helped

Brainliest is appreicated./

7 0
2 years ago
Each calendar will sell for $5 each write an equatio to model the total income for selling calendars
Brrunno [24]
To answer the question above, I let x be the number of calendars sold. You may use any other letter as this is just for representation. The total income generated in selling calendars is calculated by multiplying the number of calendars with the price. That is,
                                   total income = 5x
If we let total income be y, our equation is further simplified into, 
                                            y = 5x
4 0
3 years ago
Factor each completely. <br><br>10a² - 9a + 2 <br><br>​
Sophie [7]

Answer:

a= \frac{2}{5} or \frac{1}{2}

Step-by-step explanation:

Equate the equation to zero

10a^{2}-9a+2=0

10a^{2}-5a-4a+2=0

5a(2a-1)-2(2a-1)=0

Write out the factors

(5a-2)(2a-1)=0

Then equate each factor to zero

5a-2=0 OR 2a-1=0

5a=2  OR  2a=1

a= \frac{2}{5}   OR a= \frac{1}{2}

a=\frac{2}{5} or \frac{1}{2}

3 0
3 years ago
For your job you need to track the amount of time you spend on each project and your tota
Zanzabum

Answer:

1hr25m+45m=2hr10min

125+45=170

D.) 170min

All you had to do was add both of the numbers together.

4 0
3 years ago
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