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Doss [256]
3 years ago
5

Can you use the digits from 1-9 and the four operations (+, -, %, x) to make a 100 (or as close as possible). You can only use e

ach digit once, but you can use each operation as many times as you’d like. You may also combine numbers to make larger numbers. For example 3 and 9 to make 39.
Mathematics
1 answer:
VladimirAG [237]3 years ago
6 0
I’d just do 25 x 4 and it’s simple as that. Not unless I’m missing something
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Hey guys what is this type of equation/ question called 1 < x < 30
dimulka [17.4K]

Answer:

2,3,4,5,6,7,8,9,10,...29

Step-by-step explanation:

6 0
3 years ago
Anthony received $150 for his birthday this year. This was $10 less than half the amount
vladimir2022 [97]

Answer:

320

Step-by-step explanation:

if he received 10 less than half then you would just have to add that 10 back and multiply by 2.

150+10=160*2=320

8 0
3 years ago
Read 2 more answers
−4m + 5 = -15 pls help
Fed [463]

Answer:

m = 5

Step-by-step explanation:

−4m + 5 = -15

-4m = -15 - 5

-4m = -20

m = 5

7 0
2 years ago
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An HP printer costs $180, with printing costs of $0.03 per page. A Samsung printer costs $230, with printing costs of $0.01 per
Softa [21]

Answer:

2,500 pages

Step-by-step explanation:

Let

y -----> the overall cost

x -----> the number of pages

we know that

HP printer

y=0.03x+180 ------> equation A

Samsung printer

y=0.01x+230 -----> equation B

Solve the system by substitution

Substitute equation B in equation A

0.03x+180=0.01x+230

Solve for x

0.03x-0.01x=230-180\\0.02x=50\\x=2,500\ pages

8 0
2 years ago
Mrs. Del Pup bought 20 yards of border for her classroom bulletin board.
KengaRu [80]

A rectangle with dimensions x and y has perimeter 20 if

2(x+y)=20 \iff x+y=10

and we can deduce

y=10-x

So, the dimensions of the rectangle must be x and 10-x, where x ranges from 0 to 10 (both extremes are excluded, otherwise you'd have a degenerate rectangle, which is actually a segment).

So, all the possible areas are given by the product of the dimensions, i.e.

x(10-x) = -x^2+10x

The function f(x)=-x^2+10x represents a parabola, facing downwards, and thus it admits a maximum, which is its vertex.

In particular, the vertex of this parabola is given by

x=\dfrac{-b}{2a}=\dfrac{-10}{-2}=5

And it yields an area of

f(5)=-25+50=25

(a) So, she can frame a maximum area of 25 squared yards.

(b)The dimensions of the rectangle with greatest area are x=5 and y=10-x=10-5=5, so it's actually a square.

This is a well known theorem: if you fix the perimeter, the rectangle with the largest area is the square yielding that perimeter.

(c) If we increase both dimensions by 2 yards, our 5x5 square would become a 7x7 square...

(d) ...and the new area would be 7^2=49 squared yards. So, the new area is 49-25=26 squared yeards more than the old one.

6 0
2 years ago
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