Use properties of operations and rules for multiplying signed numbers to multiply −25 by 3/10

Question

. Write the answer in simplest form.

Answer 1

To multiply -25 by 3/10, we can use the property of operations that states that the product of a negative number and a positive number is negative.

So, -25 multiplied by 3/10 is equal to (-25) * (3/10).

To simplify the multiplication, we can cancel common factors between the numerator and denominator. In this case, we can cancel a common factor of 5.

(-25) * (3/10) = (-5*5) * (3/2*5)

= -5 * 3/2

= -15/2

Therefore, -25 multiplied by 3/10 is equal to -15/2 in simplest form.

Answer 2

Use properties of operations and rules for multiplying signed numbers to multiply −2/5 by 3/10

. Write the answer in simplest form.

Answer 3

To multiply -2/5 by 3/10, we can use the property of operations that states that the product of two negative numbers or two positive numbers is positive.

So, -2/5 multiplied by 3/10 is equal to (-2/5) * (3/10).

To simplify the multiplication, we can multiply the numerators and denominators together.

(-2/5) * (3/10) = (-2*3) / (5*10) = -6/50

To simplify the fraction, we can divide both the numerator and denominator by their greatest common divisor, which is 2.

-6/50 = -3/25

Therefore, -2/5 multiplied by 3/10 is equal to -3/25 in simplest form.

Answer 4

Multiply 4 by −5/8. Write the answer as a mixed number in simplest form.(1 point)

Answer 5

To multiply 4 by -5/8, we can multiply the whole number 4 by the numerator -5, and keep the denominator 8 the same.

4 * (-5/8) = (-20/8)

Now, we simplify this fraction. The greatest common divisor of -20 and 8 is 4.

(-20/8) = -5/2

To write this mixed number in simplest form, we divide the numerator (-5) by the denominator (2).

-5/2 = -2 remainder 1

So, the answer is -2 and 1/2.

Answer 6

Multiply 6.5 by 0.3. Write the answer as a decimal.

Answer 7

To multiply 6.5 by 0.3, we can simply multiply the two numbers together:

6.5 * 0.3 = 1.95

So, the answer is 1.95.

Answer 8

Multiply −19.3 by 6.

Answer 9

To multiply -19.3 by 6, we can simply multiply the two numbers together.

-19.3 * 6 = -115.8

So, the answer is -115.8.

Answer 10

Multiply −2 1/2 by −1 3/5. Write the answer as a decimal

Answer 11

To multiply -2 1/2 by -1 3/5, we can first convert both mixed numbers to improper fractions.

-2 1/2 is equivalent to -5/2.
-1 3/5 is equivalent to -8/5.

Next, we simply multiply the two fractions together.

(-5/2) * (-8/5) = 40/10 = 4

So, the answer is 4.