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3 years ago

Cans of corn are on sale at 10 cans for $4. What's the cost for 30 cans?

Mathematics

1 answer:

garri49 [273]3 years ago

6 0

Answer:

Step-by-step explanation:

30 is 3x larger than 10

4 x 3 = 12

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Please answer 5x < 10?

Natalka [10]

Answer:

Step-by-step explanation:

Solving inequalities is easy, you just need to follow the standard rules of algebra. Also, when multiplying or dividing by a negative number, the inequality sign is reversed.

Step 1: Divide by 5

x < 2

Step 2: Check

5(1) < 10

5 < 10✔️

Step 3: Check Again

Since an inequality has multiple solutions, it is important to check at least 2, to determine if the entire range of solutions is true.

5(-6) < 10

-30 < 10✔️

Step 4: Verified Answer

x < 2

I'm always happy to help :)

7 0

3 years ago

Read 2 more answers

Match the y-coordinate with the given x-coordinate for the equation y = log2x.

Troyanec [42]

Logs are exponents so the log base 2 of 2 raised to the power n is just n.

$y = \log_2 x$

1. $\log_2 8 = \log_2 2^3 = 3 \quad$ nope, not -1

2. $\log_2 4 = \log_2 2^2 = 2 \quad$ nope, not 1

3. $\log_2 2 = 1 \quad$ nope, not 3

4. $\log_2 1 = \log_2 2^0 = 0 \quad$ YES, matches, CHOOSE ME!

5. $\log_2 \frac 1 2 = \log_2 2^{-1} = -1 \quad$ nope, not 2

Answer: choice 4

5 0

4 years ago

Read 2 more answers

Selena was comparing the flying speeds of different birds in science class. Which of the three birds flies fastest? Why?

Mashcka [7]

Answer:

Option C. The robin flies fastest because its rate is 15 m/s

Step-by-step explanation:

Let

x -----> the time in seconds

y ----> the distance in meters

The speed is equal to divide the distance by the time

In this problem, the slope or unit rate of the linear equation is the same that the speed

<em>Robin's Flight</em>

<em>Find the slope</em>

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

take two points from the table

(2,30) and (3,45)

substitute in the formula

$m=\frac{45-30}{3-2}$

$m=\frac{15}{1}$

$m=15\frac{m}{sec}$

<em>Cardinal's Flight</em>

$y=10x$

$m=10\frac{m}{sec}$

<em>Blue Jay's Flight</em>

take two points from the graph

(0,0) and (2,20)

substitute in the formula

$m=\frac{20-0}{2-0}$

$m=\frac{20}{2}$

$m=10\frac{m}{sec}$

Compare

The robin flies fastest because its rate is 15 m/s

4 0

4 years ago

Plz help ToT I'm horrible at math

IRISSAK [1]

Answer: 126

Step-by-step explanation:

A=2(wl+hl+hw)

6 0

3 years ago

HOW DO I SOLVE THIS FAST I NEED TO KNOW ASAP

artcher [175]

Answer:

Solve what? lol

8 0

3 years ago