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3 years ago

Which expression are equivalent to 12x + 4 choose all the expressions that apply

Mathematics

2 answers:

frosja888 [35]3 years ago

8 0

Answer:

X= -1/3

Step-by-step explanation:

12x + 4 =0

12x = -4

X = -4 / 12

X = -1 / 3

Rama09 [41]3 years ago

4 0

Answer:

4(x+3),2(6x+2),1/2(24x+8),1/4(48x+16),1/3(36x+12),1/5(60x+16),1/6(72x+24),1/7(84x+28),1/8(96x+32),1/9(108x+36),1/10(120x+40)

Step-by-step explanation:

options were not given but hopefully some of these meet the criteria.

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The temperature in Boston was -15 on Saturday at 1:10pm.It increased by 2F every minute until 1:50pm.What was the temperature at

Temka [501]

The temperature was 65 F at 1:50 P.M.
150 - 110 = 40
40 x 2 = 80
80 - 15 = 65

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4 years ago

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3 years ago

Read 2 more answers

A rectangle has an area of 24 sq. inches and a perimeter of 50 in. what are the dimensions of the rectangle

gulaghasi [49]

Answer:

Length of rectangle = 24 inches

Width of rectangle = 1 inches

Step-by-step explanation:

Area of rectangle = 24 square inches

Perimeter of rectangle = 50 inches

Formulas:

Area of rectangle = $l\times w$

Perimeter of rectangle = $2(l+w)$

where $l$ represents length of rectangle and $w$ represents width of rectangle.

So, we can get two equations for $l$ and $w$

A) $l\times w=24$ [Area]

B) $2(l+w)=50$ [ Perimeter ]

Simplifying equation B.

Dividing both sides by 2.

$\frac{2(l+w)}{2}=\frac{50}{2}$

$l+w=25$

Solving for $l$ in terms of width.

Subtracting $w$ both sides.

$l+w-w=25-w$

∴ $l=25-w$

Substituting value of $l$ in terms of $w$ in equation A.

$(25-w)w=24$

Using distribution.

$25w-w^2=24$

Adding $w^2$ both sides.

$25w-w^2+w^2=24+w^2$

$25w=24+w^2$

subtracting $25 w$ both sides

$25w-25w=24+w^2-25w$

$0=w^2-25w+24$

We have a quadratic equation. $w^2-25w+24=0$

We solve for $w$ by factor method.

Splitting middle term into two terms such that the sum of the two = $-25w$ and product of two = $24w^2$

$w^2-24w-w+24=0$

Factoring in pairs.

$w(w-24)-1(w-24)=0$

Factoring as a whole

$(w-24)(w-1)=0$

So, we have

$w-24=0$ and $w-1=0$

By adding 24 to one equation and adding 1 to other we get

$w-24+24=0+24$ and $w-1+1=0+1$

$w=24$ and $w=1$

So length can be found out by plugging value of $w$ in the length equation.

$l=25-24=1$ and $l=25-1=24$

Since length is always the longer side of rectangle so, the dimensions of rectangle can be given by.

length = 24 inches (answer)

width = 1 inches (answer)

6 0

3 years ago

If Thiyo maintained a steady speed, how far did he drive after 3 h?<br><br><br> HELP ME

tatyana61 [14]

If he maintained a steady speed, he would drive 3 kilometers far after 3 hours.

<h3>What is steady speed?</h3>

Uniform or steady speed refers to a body's motion in a given direction without acceleration.

Since steady speed means a constant speed in changing time intervals, we would consider he speed as 1 km/h.

Time for which he is maintaining the steady speed is 3 h.

We know by the formula, Distance = Speed × Time

Therefore, putting the values given we get

Distance = 1 × 3 kilometers

Hence, distance travelled by he after 3 hours of maintaining steady speed is 3 kilometers.

To learn more about speed, time and distance, visit :

brainly.com/question/10566304

#SPJ9

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1 year ago

How are the GCF and the LCM alike and different?

vodomira [7]

LCM stands for-In arithmetic and number theory, the least common multiple, lowest common multiple, or smallest common multiple of two integers a and b, usually denoted by LCM(a, b), is the smallest positive integer that is divisible by both a and b. GCF stands for- The greatest common factor (GCF) of a set of numbers is the largest factor that all the numbers share. For example, 12, 20, and 24 have two common factors: 2 and 4. The largest is 4, so we say that the GCF of 12, 20, and 24 is 4. GCF is often used to find common denominators. How are they alike? Well-How are GCF and LCM alike? ... The GCF of two numbers is the biggest number that has both of the two in its multiplication table. The LCM of two numbers is the smallest number that exists on the times table of both of the two. Each has a use in reducing the work needed to solve particular problems. How are they different well-Most likely the other multiple is shared between both numbers. ... The GCF is based upon what integer divides evenly into two numbers; the LCM is based upon what integer two numbers share in a list of multiples. 2. The GCF must be a prime number; the LCM must be a composite number. (HOPES THIS HELPS!!!!)

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3 years ago