Jacob is showing his steps to solve the expression −27.8 ÷ 1 over 7. In which step did Jacob make an error? Step 1: −27.8 ÷ 1 over 7 Step 2: −27.8 ⋅ 7 Step 3: −194.6


I don't have a lot of time, pls help

Answer: False.

Step-by-step explanation:

Initially, the ratio is 2:7

This means that if we have 2 red marbles, we must have 7 yellow ones.

The quotient here is 7/2 = 3.5

Now, if you add 3 marbles of each colour, then we have:

2 + 3 = 5 red marbles

7 + 3 = 10 yellow marbles.

Now the ratio is 5:10

This means that for every 5 red marbles, we have 10 yellow ones.

But now we can divide both numbers by the same positive integer, because they have a common factor equal to 5.

5/5 = 1

10/5 = 2

Then we have:

5:10 = 1:2

So the new ratio is 1:2

Then the ratio changed when we added the new marbles, which means that Maria was wrong.

Answer:

subtract 3 from both sides.

Answer:

B) Subtract 3 from both sides.

Step-by-step explanation:

EDGE 2020

Answer:

Inequaliy: 2x-3(12)>60

X>48

Step-by-step explanation:

Since area of a rectangle is W(L)=A

The inequality given right here including length And width and area Plugged in would be

2x-3(12)>60.  (It’s >60 because the area stated in the problem said to be greater then 60 so we put a Greater then sign)

Combine like terms and solve

2x-36>60

Add 36 on both sides

2x>96

Divide 2 on both sides to isolate variable

x>48

Check:

2(50)-36>60 ( I used 50 because it’s greater then 48 and it’s a easy number to work with for just a check)

solve:

100-36>60

64>60✔️

Answer:

The answer is

Step-by-step explanation:

To convert an angle from degrees to radians multiply the value by [tex] \frac{\pi}{180} [/tex] .

From the question the value is 40°

It's equivalent in radians is

[tex]40 \times \frac{\pi}{180} = \frac{40\pi}{18 0} = \frac{2\pi}{9} \\ [/tex]

We have the final answer as

[tex] \frac{2\pi}{9} \\ [/tex]

Hope this helps you

Answer:

3

Step-by-step explanation:

Parallel lines have the same slope

So if line Q has a slope of 3

Line R which is parallel to Q must have a slope of 3

Answer:

a = 10   b = 6

Step-by-step explanation:

7^2 * 7^8

----------------

7^4

We know that a^b* a^c = a^( b+c)

7^(2+8)

----------------

7^4

7^(10)

----------------

7^4

We know that a^b / a^c = a^(b-c)

7^(10-4) = 7^6

Answer: It Will Take 3 Months

Answer:

solution,

given,

x=9 and y=-2

now,

2xy

= 2*9 * -2

= 18 * -2

= -36#

The value 2xy is -36.

Evaluation is the structured interpretation and giving of meaning to predicted or actual impacts of proposals or results.

Given that, x = 9 and y = -2

2xy = 2*2*-9 = -36

Hence, The value 2xy is -36.

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Answer:

broken (or dotted)

Step-by-step explanation:

y will only be less than 2 + 4x + 5

never equal to it

Answer:So its simple just forget about the letters add the numbers then place the letter and x

Step-by-step explanation: ( Always Parentheses first) Then i think you divide it by the outside number

Answer:

in order of the picture:

18w+8                           -48x-24

16d+20                          -48p-18

6v-16                              25m-10

-24z+16                          -9n+36

10d-2                             -36k-36

-14j-10                             -9b+6

24j-9                               3v+5

-72v-16                             18h-72

-20f+32                           -7x+8

4p-6                                 45t+72

Step-by-step explanation:

Hope this helps.

Answer:

B.  f(x) = -x^3 - x^2 + 7x - 4

Step-by-step explanation:

For this problem, we want to find the fastest-growing term in our given expressions and equate them when x is - infinite and when x is infinite to see the given trends.

For each of these equations, we will simply take the terms with the highest power and consider those.  The two cases we need to consider is + infinite for x and - infinite for x.  Let's check each of these equations.

Note, any value raised to an even power will be positive.  Any negative value raised to an odd power will be negative.

[A] - x^4

When x is +∞ --> - (∞)^4 -->  f(x) is -∞

When x is -∞ --> - (-∞)^4 --> f(x) is -∞

[B] - x^3

When x is +∞ --> - (∞)^3 --> f(x) is -∞

When x is -∞ --> - (-∞)^3 --> f(x) is ∞

[C] 2x^5

When x is +∞ --> 2(∞)^5 --> f(x) is ∞

When x is -∞ --> 2(-∞)^5 --> f(x) is -∞

[D] x^4

When x is +∞ --> (∞)^4 --> f(x) is ∞

When x is -∞ --> (-∞)^4 --> f(x) is ∞

Notice how only option B, when looking at asymptotic (fastest-growing) values, satisfies the originally given conditions for the relation of x to f(x).

Cheers.

Answer:

6

Step-by-step explanation:

A constant has no variables multiplied to it.

f(x) = 8x² - 7x + 6

8x² and -7x would have variables and would be terms.

6 would just be a constant cause it doesn't change.

Answer:

4.4 ≤ x

Step-by-step explanation:

2/5 ≤ x  -4

solve using inverse operations:

2/5 ≤ x - 4

0.4 ≤ x - 4

+4        +4

4.4 ≤ x

Hello there!☺

[tex]Answer:\boxed{x\geq \frac{22}{5}}[/tex]

[tex]Explanation:[/tex]

[tex]\frac{2}{5}\leq x-4[/tex]

Let's start by flipping the inequality:

[tex]x-4\geq \frac{2}{5}[/tex]

Now in our second/final step, add 4 to both sides:

[tex]x-4+4\geq \frac{2}{5}+4\\ x\geq \frac{22}{5}[/tex]

Hope this helps!☺

Answer: 13 weeks

Step-by-step explanation:

152.75÷11.75=13

13×11.75= 152.75

Answer:

$1.2

Step-by-step explanation:

12 / 10 pounds = 1.2

Answer:

$1.20

 12/10= 1.2

Step-by-step explanation:

Answer:

Step-by-step explanation:

Let x represent the fuel efficiency of one of the cars. Then 45-x is the fuel efficiency of the other. The total miles driven is then ...

  miles = (gallons)×(miles/gallon)

  20x +30(45-x) = 1050

  -10x +1350 = 1050 . . . simplify

  300 = 10x . . . . . . . . . . add 10x-1050

  x = 30 . . . . . . . . . . . . . divide by 10

  45-x = 45-30 = 15

The car using 20 gallons got 30 miles per gallon; the car using 30 gallons got 15 miles per gallon.

Answer:−(5−3m)=7m+10

m+−1(5−3m)=7m+10(Distribute the Negative Sign)

m+(−1)(5)+−1(−3m)=7m+10

m+−5+3m=7m+10

(m+3m)+(−5)=7m+10(Combine Like Terms)

4m+−5=7m+10

4m−5=7m+10

Step 2: Subtract 7m from both sides.

4m−5−7m=7m+10−7m

−3m−5=10

Step 3: Add 5 to both sides.

−3m−5+5=10+5

−3m=15

Step 4: Divide both sides by -3.

−3m

−3

=

15

−3

m=−5

Step-by-step explanation:

brainliest pleaseee

[tex]\tt{Hey![/tex]

[tex]\tt{Answer:} 1\frac{3}{8}[/tex]

[tex]\tt{Explanation:[/tex]

[tex]\tt{\frac{44}{32}[/tex]

To convert 44/32 into a simplified fraction, you will take 32 away from 44 since it equals 1:

[tex]\tt{\frac{44}{32}= 1\frac{12}{32}[/tex]

Now simplify 12/32:

[tex]\tt{\frac{12 \div 4}{32 \div 4}=\frac{3}{8}[/tex]

You have to keep the whole number 1 and add it to 3/8:

[tex]\boxed{\tt{1\frac{3}{8}}}[/tex]

Hope this helps!☺

Answer:

375.6

Step-by-step explanation:

Answer:

m∠2 = 103°

Step-by-step explanation:

Since ∠1 and ∠2 are supplementary angles, together they equal 180. So, you would just subtract 180-77 and get 103. To check if you are correct just add ∠1 and ∠2 ( 77+103) and you'll get 180 :)

Answer:

addition first

Step-by-step explanation:

PMDAS   1

P:Parenthesis     2

M:Multiply    3

D:Divide    4

A:Add    5

S:Subtract   6

Adding is before subraction

Answer:

You do whichever one is first

Step-by-step explanation:

Parenthesis

Exponents

Multiplication/Division

Addition/Subtract

Hope it helps

Answer: 5

Step-by-step explanation:

-10 -6(x-4)=x-42

-6*x=-6x

-6*-4=24

-10-6x+24=x-42

           -24= -24=18

-10-6x=x-18

+10=+10=28

-6x=x-28

     x+=+x

-5x=-28

-5/-28=

x=5

Answer:

common denominator is 15

10/15-3/15

7/15

In order to make the denominators of both 15 multiply 3 by 5 and 5 by three. Whats done to the bottom has to be done to the top as well.

Step-by-step explanation:

Answer:

AB is parallel to AC

Step-by-step explanation:

the product of the gradients of perpendicular line should be -1

AB=2/3

AC=-3/2

2/3*-3/2=-1

=-1

The correct statement is,

⇒ AB is perpendicular to AC.

The equation of line in point-slope form passing through the points

(x₁ , y₁) and (x₂, y₂) with slope m is defined as;

⇒ y - y₁ = m (x - x₁)

Where, m = (y₂ - y₁) / (x₂ - x₁)

We have to given that;

Points are,

A(0, 0), B(3, 2), and C(−2, 3),

Now, We can find slopes as;

AB = (2 - 0) / (3 - 0)

AB = 2/3

AC = (3 - 0)) / (- 2 - 0)

AC = - 3/2

Hence, AB is perpendicular to AC.

Thus, The correct statement is,

⇒ AB is perpendicular to AC.

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Answer:

[tex]\huge\boxed{500}[/tex]

Step-by-step explanation:

In order to solve this, we have to note that consecutive numbers are numbers that are one more than the last.

If our first number is represented as [tex]n[/tex], then we know that the next number will be [tex]n+1[/tex], the next will be [tex]n+2[/tex], and so on.

Since we want 4 numbers, we can create the equation:[tex]n + (n+1) + (n+2) + (n+3) = 1998[/tex]

Now we want to solve for [tex]n[/tex]. It's important to note that [tex]n[/tex] is our first number.

Combine like terms:

[tex]4n+6=1998[/tex]

Subtract 6 from both sides:

[tex]4n=1992[/tex]

Divide both sides by 4:

[tex]n = 498[/tex]

We want the third number in the set of these four numbers. Looking back to our equation ([tex]n + (n+1) + (n+2) + (n+3) = 1998[/tex]) we can see that the third term here is [tex]n+2[/tex]

[tex]498+2=500[/tex]

Hope this helped!

Answer:

3 ; $11.97

Step-by-step explanation:

Given that:

Balloon options : 15 and 12

Every bouquet has same number of each color :

Greatest possible number of bouquet possible using all the balloons :

Greatest common factor of both 15 and 12:

15 : 1, 3, 5, 15

12 : 1, 2, 3, 4, 6, 12

Hence the greatest common factor of both 15 and 12 is 3

Hence,

Greatest possible number of bouquet possible using all the balloons = 3

If each bouquet is sold for $3.99 :

Earning will be :

Number of bouquet * price per bouquet

3 × $3.99

= $11.97

Answer:

2

Step-by-step explanation:

3*2+1 = 7

Answer:

yup very easy

Step-by-step explanation: