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3 years ago

If 45 cookies will serve 15 students, how many cookies are needed for 30 students

Mathematics

2 answers:

valina [46]3 years ago

8 0

90 cookies will feed 30 people just double 45

anzhelika [568]3 years ago

3 0

15 * 2 = 30

Therefore, you multiply 45 by 2 and your answer is the number of cookies need to serve 30 students.

45 * 2 = 90

90 cookies are needed to serve 30 students.

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Nezavi [6.7K]

Answer:

3 ÷ 1/3 = 9

Step-by-step explanation:

= 3 ÷ 1/3

= 3/3 (3/1) ÷ 1/3

= 9/3 × 3/1

= 9/1

= 9

3 0

2 years ago

Simplify the expression 3^-8× 34.

Alborosie

Answer:

= $\frac{34}{6561}$

Step-by-step explanation:

$= 3^{-8}\times \:34\\= 34\times \frac{1}{3^{8} } \\= \frac{1\times \:34}{3^{8} } \\= \frac{34}{3^{8} } \\= \frac{34}{6561}$

5 0

3 years ago

Please help me answer this question!!

Nataly_w [17]

Answer:

○ $\displaystyle 2\:units$

Step-by-step explanation:

$\displaystyle \frac{24}{6} = \frac{6s^2}{6} \hookrightarrow \sqrt{4} = \sqrt{s^2} \\ \\ 2 = s$

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8 0

2 years ago

Round 0.978 to the nearest tenth

Setler79 [48]

The answer is one, because the number seven in the hundredths column is greater than five so you round the nine up to 1.0.

5 0

3 years ago

Which represents the solution(s) of the graphed system of equations, y = x2 – 2x and y = –2x – 1? (1, –1) (0, 0) and (0, –1) (0,

olganol [36]

ANSWER

No solution

EXPLANATION

The first equation is

$y = {x}^{2} - 2x$

and the second equation is

$y = - 2x - 1$

We equate the two equations to obtain;

${x}^{2} - 2x = - 2x - 1$

This implies that

${x}^{2} = - 2x + 2x - 1$

${x}^{2} = - 1$

There is no real number whose square is -1.

Therefore, the equation has no solution.

6 0

3 years ago

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