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PolarNik [594]
3 years ago
6

Why us the answer 20-2 (5+5)

Mathematics
2 answers:
Umnica [9.8K]3 years ago
6 0
20-2 (5+5) youre supposed to do what's in 18+10. the parentheses first which is 28. 5+5=10 then 20-2=18 so then you add 10+18=28✔
nadya68 [22]3 years ago
4 0
20 - 2(5 + 5)
20 - 2(10)
20 - 20
0
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Which three expressions are equavalent to the expression 3x-12-2(x+12)​
IgorC [24]
3x-12-2x-24
Simplify and you get x-36
6 0
3 years ago
Two functions are graphed on the coordinate plane.
rosijanka [135]

Answer:

Option B

Step-by-step explanation:

We can see that, from the picture provided, the graphs intersect at points( 0, 4 ) and ( - 4, 4 ), respective to functions f( x ) and g( x ). These intersection points makes each function equivalent to one another, and hence -

Function f( x ) where x = - 4 / Function g( x ) where x = - 4,

f( - 4 ) = 4,\\g( - 4 ) = 4\\----------\\f ( - 4 ) = g ( - 4 )

Respectively function f( x ) where x = 0 / Function g( x ) where x = 0,

f( 0 ) = 4,\\g( 0 ) = 4\\----------\\f ( 0 ) = g ( 0 )

<u><em>Your solution should be option b, "  f(-4) = g(-4) and f(0) = g(0) "</em></u>

7 0
3 years ago
Give the x and y intercepts: x+3y=24
Ray Of Light [21]

Answer:

y-intercept is 8

x-intercept is 24

Step-by-step explanation:

put equation into slope-intercept form:

x + 3y = 24

3y = -x + 24

y = -1/3x + 8

now we know the y-intercept is at point (0,8)

4 0
3 years ago
Round 854 to the nearest hundredth
Paladinen [302]

Answer:

854

Step-by-step explanation:

There is no decimals.

4 0
3 years ago
2) Brian purchased pens for 75 cents each and pencils for 40 cents each he bought total of 22 writing utensils for $11.95. How m
d1i1m1o1n [39]

Answer:

13 pencils.

Step-by-step explanation:

Let x be the pens and y be the pencils

Given:

Brian purchased pens for 75 cents each and pencils for 40 cents each he bought total of 22 writing utensils for $11.95.

Total pens and pencils is 22

So, x+y=22----------------(1)

And he bought all utensils for $11.95. and each pen for 75 cents and pencils for 40 cents.

0.75x+0.40y=11.95------------(2)

solve equation 1 and equation 2 for x and y.

From equation 1.

x+y=22

y=22-x----------------(3)

put y value in equation 2.

0.75x+0.4(22-x)=11.95

0.75x+0.4\times 22-0.4x=11.95

0.75x+8.8-0.4x=11.95

0.75x-0.4x=11.95-8.8

0.35x=3.15

x=\frac{3.15}{0.35}

x=9

Now substitute x value in equation 3.

y=22-9

y=13

So, he buy 13 pencils.

5 0
3 years ago
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