40+5-9x+4 I need help with this it needs to be simplified

4/5m=28 can you help me solve this equation step by step?

Maslowich

Step-by-step explanation:

Step by step solution :

Step 1 :

4

Simplify —

5

Equation at the end of step 1 :

4

(— • m) - 28 = 0

5

Step 2 :

Rewriting the whole as an Equivalent Fraction :

2.1 Subtracting a whole from a fraction

Rewrite the whole as a fraction using 5 as the denominator :

28 28 • 5

28 = —— = ——————

1 5

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 :

2.2 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:

4m - (28 • 5) 4m - 140

————————————— = ————————

5 5

Step 3 :

Pulling out like terms :

3.1 Pull out like factors :

4m - 140 = 4 • (m - 35)

Equation at the end of step 3 :

4 • (m - 35)

———————————— = 0

5

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:

4•(m-35)

———————— • 5 = 0 • 5

5

Now, on the left hand side, the 5 cancels out the denominator, while, on the right hand side, zero times anything is still zero.

The equation now takes the shape :

4 • (m-35) = 0

Equations which are never true :

4.2 Solve : 4 = 0

This equation has no solution.

A a non-zero constant never equals zero.

Solving a Single Variable Equation :

4.3 Solve : m-35 = 0

Add 35 to both sides of the equation :

m = 35

One solution was found :

m = 35

4 0

3 years ago

The following numbers are gas prices from 12 local gas stations. If Pilot builds another local gas station, what would the gas p

TEA [102]

Answer:

1.24

Step-by-step explanation:

4 0

3 years ago

One year Roger had the lowest ERAâ€‹ (earned-run average, mean number of runs yielded per nine inningsâ€‹ pitched) of any male p

baherus [9]

Answer:

(a) The z-score of Roger is -1.56 and the z-score of Amber is -1.13.

(b) Roger had a better year relative to his peers.

Step-by-step explanation:

If X follows N (µ, σ₂), then $z=\frac{x-\mu}{\sigma}$ , is a standard normal variate with mean, E (Z) = 0 and Var (Z) = 1. That is, Z follows N (0, 1).

Let X = ERA of male pitchers and Y = ERA of ERA of female pitchers.

It is provided that the mean and standard deviation of X are:

$\mu_{X}=4.371\\\sigma_{X}=0.787$

Also, the mean and standard deviation of Y are:

$\mu_{Y}=4.363\\\sigma_{Y}=0.869$

ER of Roger is 3.14 and ERA of Amber is 3.38.

(1)

Compute the z-score of Roger as follows:

$z=\frac{x-\mu_{X}}{\sigma_{X}}=\frac{3.14-4.371}{0.787}=-1.56$

Thus, the z-score of Roger is -1.56.

Compute the z-score of Amber as follows:

$z=\frac{x-\mu_{Y}}{\sigma_{Y}}=\frac{3.38-4.363}{0.869}=-1.13$

Thus, the z-score of Amber is -1.13.

(2)

Compute the probability of ERA's that are greater than Roger's ERA as follows:

$P(X>3.14)=P(\frac{X-\mu}{\sigma}>\frac{3.14-4.371}{0.787})\\=P(Z>-1.56)\\=P(Z$

This implies that 94% of the other male pitchers had an ERA higher than 3.14.

Compute the probability of ERA's that are greater than Amber's ERA as follows:

$P(Y>3.38)=P(\frac{Y-\mu_{Y}}{\sigma_{Y}}>\frac{3.38-4.363}{0.869})\\=P(Z>-1.13)\\=P(Z$

This implies that 87% of the other female pitchers had an ERA higher than 3.38.

As it is provided that the lower the ERA the better the pitcher, then it can be concluded that Roger had a better year relative to his peers.

4 0

4 years ago

If 3 times a number, n, is increased by 10, the result is equal to 8 times the number. Which could be the first two steps to fin

NNADVOKAT [17]

First set up an equation in n:-

3n + 10 = 8n

add -3n to both sides;-

10 = 5n

7 0

4 years ago

Who won the race between the two balls of string

motikmotik

The higher one I think

7 0

3 years ago