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irina1246 [14]
3 years ago
9

A pizza restaurant offers 21 different toppings. How many 5-topping pizzas can be created if each topping can be used only once?

Mathematics
2 answers:
TiliK225 [7]3 years ago
8 0
4.1 pizzas if thats an option 
STatiana [176]3 years ago
6 0
4. 5 times 4 is 20. :)

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which of the following expresses the relationship described below in function notation? "f is a function of x, and twice the squ
amm1812
F(x)=2(x+7)^2+(x-3) should be the answer.
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worty [1.4K]

Answer:

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Step-by-step explanation:

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3 years ago
The GCD(a, b) = 9, the LCM(a, b)=378. Find the least possible value of a+b.
denis-greek [22]
\mathrm{gcd}(a,b)=9\implies9\mid a\text{ and }9\mid b\implies9\mid a+b

which means there is some integer k for which a+b=9k.


Because 9\mid a and 9\mid b, there are integers n_1,n_2 such that a=9n_1 and b=9n_2, and


\mathrm{lcm}(a,b)=\mathrm{lcm}(9n_1,9n_2)=9\mathrm{lcm}(n_1,n_2)=378\implies\mathrm{lcm}(n_1,n_2)=42

We have 42=2\cdot3\cdot7, which means there are four possible choices of n_1,n_2:

1, 42
2, 21
3, 14
6, 7

which is to say there are also four corresponding choices for a,b:

9, 378
18, 189
27, 126
54, 63

whose sums are:

387
207
153
117

So the least possible value of a+b is 117.
6 0
3 years ago
How many solutions does the following equation have?<br> -5(z+1)=-2z+10−5(z+1)=−2z+10
Levart [38]

Step-by-step explanation:

the answer is 13 when we evaluate it

7 0
3 years ago
Find the missing value -3 = ? -11
maria [59]

Answer

Positive 8 is the missing value

Step-by-step explanation:

-11 + 8 = -3

6 0
2 years ago
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