-7m - 4m + 2 + 5 = 7 - 3m

the ratio of postcard Rapheal to Carlene's was 8 to 5. On Friday both acquired twice as many postcards. Later that week Carlene

larisa86 [58]

Step-by-step explanation:

the ratio of postcard Rapheal to Carlene's was 8 to 5. On Friday both acquired twice as many postcards. Later that week Carlene counted their new numbers of the postcards that she had sixty less postcards than Raphael.How many postcard did Rapheal have first.

4 0

2 years ago

The length of a square is 256m and the breadth is 238m what is the perimeter

Arturiano [62]

The perimeter is 988 meters

Further explanation:

The given square has different length and breadth which means that the given square is a rectangle.

The formula for perimeter of a rectangle is:

$P=2L+2W$

Given

Length=L=256m

Breadth=W=238m

Putting the values in the formula:

$P=2(256)+2(238)\\=512+476\\=988\ meters$

The perimeter is 988 meters.

Keywords: Rectangle, Perimeter

Learn more about perimeter at:

#LearnwithBrainly

4 0

2 years ago

Please help! Which ordered pair is the solution to the system of equations?

torisob [31]

The answer to the question

5 0

2 years ago

~PLEASE HELP ASAP OFFERING 20 POINTS PLEASE ANSWER ALL QUESTIONS~

frozen [14]

1) Johnson's profit is

... net profit = selling price - costs = $155 - 35.00 - 39.17 - 36.43 = $44.40

His net earnings per hour are then

... earnings/hours = $44.40 / (4.5 h) = $9.87/h

2) net profit = selling price - overhead - cost

... net profit = selling price - 0.45 × selling price - cost . . . . substitute for overhead

... net profit = 0.55 × selling price - cost

Given that overhead = 0.45 × selling price, we can find selling price by dividing by 0.45:

... selling price = overhead/0.45

Using this in the profit equation, we have

... net profit = 0.55×(overhead/0.45) - cost

... = (0.55/0.45) × $65.34 - 49.32 . . . . . . substitute given numbers

... net profit = $30.54

5 0

3 years ago

X^4-7x^2+9 (resolve into factors) Please help me I will mark you as brainliest.

SSSSS [86.1K]

Factoring x4-7x2-9 

Factoring x4-7x2-9 The first term is, x4 its coefficient is 1 .

Factoring x4-7x2-9 The first term is, x4 its coefficient is 1 .The middle term is, -7x2 its coefficient is -7 .

Factoring x4-7x2-9 The first term is, x4 its coefficient is 1 .The middle term is, -7x2 its coefficient is -7 .The last term, "the constant", is -9 

Factoring x4-7x2-9 The first term is, x4 its coefficient is 1 .The middle term is, -7x2 its coefficient is -7 .The last term, "the constant", is -9 Step-1 : Multiply the coefficient of the first term by the constant 1 • -9 = -9

Factoring x4-7x2-9 The first term is, x4 its coefficient is 1 .The middle term is, -7x2 its coefficient is -7 .The last term, "the constant", is -9 Step-1 : Multiply the coefficient of the first term by the constant 1 • -9 = -9 Step-2 : Find two factors of -9 whose sum equals the coefficient of the middle term, which is -7 .

Factoring x4-7x2-9 The first term is, x4 its coefficient is 1 .The middle term is, -7x2 its coefficient is -7 .The last term, "the constant", is -9 Step-1 : Multiply the coefficient of the first term by the constant 1 • -9 = -9 Step-2 : Find two factors of -9 whose sum equals the coefficient of the middle term, which is -7 . -9 + 1 = -8

Factoring x4-7x2-9 The first term is, x4 its coefficient is 1 .The middle term is, -7x2 its coefficient is -7 .The last term, "the constant", is -9 Step-1 : Multiply the coefficient of the first term by the constant 1 • -9 = -9 Step-2 : Find two factors of -9 whose sum equals the coefficient of the middle term, which is -7 . -9 + 1 = -8 -3 + 3 = 0

Factoring x4-7x2-9 The first term is, x4 its coefficient is 1 .The middle term is, -7x2 its coefficient is -7 .The last term, "the constant", is -9 Step-1 : Multiply the coefficient of the first term by the constant 1 • -9 = -9 Step-2 : Find two factors of -9 whose sum equals the coefficient of the middle term, which is -7 . -9 + 1 = -8 -3 + 3 = 0 -1 + 9 = 8

<h2>hope I've helped u something... </h2>

...so plz like it and follow me!! ♥ 

5 0

2 years ago

-7m - 4m + 2 + 5 = 7 - 3m - 8m