Please help with number 1? It’s urgent!!!!

3 times the difference between 37.5 and 24.5

Goryan [66]

39 will be your answer.

6 0

3 years ago

Read 2 more answers

What is j equal to in 1 2/3j=15

Vladimir [108]

Answer:90

Step-by-step explanation:One solution was found :

j = 90

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

1/2/3*j-(15)=0

Step by step solution :

Step 1 :

1

Simplify —

2

Equation at the end of step 1 :

1

(— ÷ 3 • j) - 15 = 0

2

Step 2 :

1

Divide — by 3

2

Equation at the end of step 2 :

1

(— • j) - 15 = 0

6

Step 3 :

Rewriting the whole as an Equivalent Fraction :

3.1 Subtracting a whole from a fraction

Rewrite the whole as a fraction using 6 as the denominator :

15 15 • 6

15 = —— = ——————

1 6

Equivalent fraction : The fraction thus generated looks different but has the same value as the whole

Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator

Adding fractions that have a common denominator :

3.2 Adding up the two equivalent fractions

Add the two equivalent fractions which now have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

j - (15 • 6) j - 90

———————————— = ——————

6 6

Equation at the end of step 3 :

j - 90

—————— = 0

6

Step 4 :

When a fraction equals zero :

4.1 When a fraction equals zero ...

Where a fraction equals zero, its numerator, the part which is above the fraction line, must equal zero.

Now,to get rid of the denominator, Tiger multiplys both sides of the equation by the denominator.

Here's how:

j-90

———— • 6 = 0 • 6

6

Now, on the left hand side, the 6 cancels out the denominator, while, on the right hand side, zero times anything is still zero.

The equation now takes the shape :

j-90 = 0

Solving a Single Variable Equation :

4.2 Solve : j-90 = 0

Add 90 to both sides of the equation :

j = 90

One solution was found :

j = 90

8 0

4 years ago

Read 2 more answers

On average, it takes a shoe factory 21 minutes, with a standard deviation of 3 minutes, to manufacture a pair of running shoes.

algol13

Answer:

The number of times it would take more than 27 minutes to manufacture a pair of running shoes is 2.275 times or approximately 2 times per every 100 shoes

Step-by-step explanation:

The average time it takes to manufacture a pair of shoes = 21 minutes;

The standard deviation = 3 minutes

To find how often it takes more than 27 minutes to manufacture a pair of running shoes, we have;

Standard score, given as follows;

$Z=\dfrac{x-\mu }{\sigma }$

Where;

x = The raw score = 27 minutes

μ = The average score = 21 minutes

σ = The standard deviation = 3 minutes

From which we have;

$Z=\dfrac{27-21 }{3 } = 2$

Therefore, it is borderline unusual with a p value of P(z>2) = 1 - 0.97725 = 0.02275

Therefore, the number of times out of 100 that it would take more than 27 minutes to manufacture a pair of running shoes = 100 × 0.02275 = 2.275 times which is approximately 2 times in every 100 shoes.

7 0

4 years ago

in one year dog's weigh from 64 pounds to 80 pounds . by what percentage did the dog's weght increase

Masja [62]

Answer:

15%

Step-by-step explanation:

First, let's find how many pounds the dog's weight increased by during the year.

80 - 64 = 16

Now, knowing that the dog's weight increased by 16 pounds, we can use that to figure out the percentage of 16 out of 64 (divide them, then multiply by 100 to get a percentage).

$\frac{16}{64}$ • 100 = 0.25 • 100 = 25%

8 0

3 years ago

sanjay's dog weighs 46 pounds on earth multiply the dogs earth weight by 0.38 to find how much it would weigh on mars, and by 2.

Roman55 [17]

The dog weighs 17.48 pounds on Mars and 108.56 pound on Jupiter. Therefor, it will weigh 91.08 pounds less on Mars than on Jupiter.

6 0

3 years ago