MATHEMATICS
HIGH SCHOOL

Answer: D=LM/(R2+R1)

d(R2+R1)=LM

[d(R2+R1)]/M=L

d(R2+R1)=LM

[d(R2+R1)]/M=L

Answer:

Answer:

Given the equation: .....[1]

Cross multiply states that an equation of fractions when each of the side consists of a fraction with a single denominator by multiplying the numerator of each side by the denominator of the other side and equating these two products obtained.

Apply the cross multiply in [1], we get;

Divide both sides by M we get;

or

COLLEGE

What is 5/16 expressed as a percent?

Enter your answer in the box.

Answer:

31.25 %

Step-by-step explanation:

The fraction bar also means divide:

5 / 16

=

5 Divided By 16

=

0.3125

0.3125 * 100

= 31.25

- I.A -

MIDDLE SCHOOL

Mindy and Daisy are making necklaces using beads. Mindy uses 4 beads for every 5 white beads. daisy uses 6 red beads for every 7 white beads. Use tables of equivalent ratios to determine who will Use more white beads use more white beads when Mindy and Daisy each use 12 red beads

Answer:

Mindy uses more white beads

Step-by-step explanation:

For Mindy:

red : white = 4 : 5 = 12 : 15

For Daisy:

red : white = 6 : 7 = 12 : 14

When both use 12 red beads, Mindy uses 15 white beads and Daisy uses 14 white beads.

Mindy uses more white beads when both use 12 red beads.

MIDDLE SCHOOL

What is the total cost of sweatshirt if the regular price is $42 and the sales tax is 5.5 or 5 1/2%

44.31 is how much it would cost

First, find 5.5% of 42

0.055 x 42 = 2.31

Now add

42 + 2.31 = 43.11

The answer is 43.11

0.055 x 42 = 2.31

Now add

42 + 2.31 = 43.11

The answer is 43.11

MIDDLE SCHOOL

Janie dug up 3.086 pounds of dirt from around a rose bush in her backyard. She measured the dirt and recorded the rounded amount to the nearest hundredth.

Answer:

3.09

Step-by-step explanation:

The hundredth is the second number to the left of the decimal point. To round you use the number to the left to judge whether the next number will go up or down. A good rule is this "4 and below let it go, 5 and above give it a shove", this means if the number is 4 or lower leave the digit the same. If it's 5 or higher change it to be one digit larger.