I NEED HELP IM DOING A EXAM
Solve the equation and check your solution.
1. 3(x+6)=18+3x
2. -2(x-1)=2-2x
3. x+4=-2+x
4. -2(x+2)=5-2x

Answer:

96 m

Step-by-step explanation:

Create a proportion where x is the height of the building:

[tex]\frac{2.8}{1.46}[/tex] = [tex]\frac{x}{50.25\\}[/tex]

Cross multiply and solve for x:

1.46x = 140.7

x = 96

So, the height of the building is approximately 96 m tall

Answer:

It is (-0.5, 0)

Step-by-step explanation:

Mid-point formular:

[tex]{ \bf{midpoint = (\frac{x_{1} + x _{2} }{2} , \: \frac{y_{1} + y_{2} }{2}) }}[/tex]

x1 is -4

x2 is 3

y1 is -3

y2 is 3

[tex]{ \sf{ = ( \frac{ - 4 + 3}{2} , \: \frac{ - 3 + 3}{2}) }} \\ \\ { \sf{ = ( - \frac{1}{2} , \: \frac{0}{2}) }} \\ \\ = { \sf{( - 0.5, \: 0)}}[/tex]

Answer:

the unit rate of 1/7 is itself (1/7), and for 1/21 is 1/21.

Step-by-step explanation:

this is because these rates/ratios are unit fractions. so if the numerater is 1, theres nothing you can do to simplify it.

you can check with the ceaser method as well, but you're still going to find the same solution.

plus, for example, if it takes 7 grams of sugar to make 1 cake, it wouldnt make sense for 1 gram of sugar to make 7 cakes.

hope this helped clear up your confusion <3

Answer:

45 and 5 are the dimensions of the block of land.​

Step-by-step explanation:

2(x + y) = 100, x + y = 100/2, y = (50 - x)

xy = 225

x (50 — x) = 225

0 = x^2 — 50x + 225

0 = (x — 45) (x -5)

45 and 5 are the roots of the above polynomial, thus they are the sides or dimensions of the block of land.

Answer:

[tex] \frac{12}{5} = \frac{3}{x} \\ 12 \times x = 5 \times 3 \\ 12 x = 15 \\ x = \frac{15}{12} \\ = 1.25[/tex]

i hope it helped U

stay safe stay happy

Answer:

$23,470

Step-by-step explanation:

A down payment is how much you pay upfront for a car. So, how much she still owes will be the difference between the total cost and the down payment. Therefore, subtract $3,140 from $26,610; 26610-3140=23470. Then, since you are talking about money the units are dollars, $.

Answer and Step-by-step explanation:

Essentially, you are describing the position of point K using the location of the other points on the graph.

Let's start listing some descriptions:

K is:

3 more than H

2 more than J

3 less than L

4 less than M

7 less than N

12 less than P

Now look at the answer choices and compare it to what we wrote.

We see that the answer choices A, B, and D are incorrect (based on what we wrote), and that answer choice C is correct.

[C. 7 less than N] is the correct answer.

#teamtrees #PAW (Plant And Water)

I hope this helps!

Answer: LESS THAN FOUR

Step-by-step explanation:

Answer:

7x-10y=6

Step-by-step explanation:

Firstly, supervise 7x-10y=3 using the coordinates of one from the known points

7*8-10*5=3

6=3 It is not correct, so the equation is uncorect

Find the correct equation

The common equation is y=mx+b

5=8m+b

-9=-12m+b

Both equations are simultaneous.

-9-5= -12m+b- (8m+b)

-14=-20m

m=0.7

b=5-5.6=-0.6

y=0.7x-0.6

0.7x-y=0.6

7x-10y=6- the correct answer

Answer:

the first one at the top left

Answer:

For any two points (a,b) and (c,d) ,

the slope of the line is (d-b)/(c-a)

plug in your given values, let me know what you get

Step-by-step explanation:

Step-by-step explanation:

a=20⁰ vertically opposite angles are equal

b=160⁰ sum of angles on a straight line add up to 180⁰

(180⁰-20⁰=60⁰)

c=125⁰ sum of angles on a straight line add up to 180⁰

(180⁰-35⁰-20⁰=125⁰)

Answer:

X=2

Step-by-step explanation:

8-x=6

there the answer is 2

Answer:

they create 90* angles on the graph

Answer:

I am confused!

Answer:

you just solve by doing equation 1&2 i guess the answer will come

Step-by-step explanation:

Remember the formula a^2-b^2=(a-b)(a+b)

Answer:

9

Step-by-step explanation:

60 is 15=9

Answer:

a + 2 = a-2

step-by-step explanation

[tex]\boxed{\sf a(b+c)=ab+bc}[/tex]

[tex]\\ \rm\longmapsto 10(x+5)[/tex]

[tex]\\ \rm\longmapsto 10x+10(5)[/tex]

[tex]\\ \rm\longmapsto 10x+50[/tex]

Answer:

64 miles

Step-by-step explanation:

Answer:

7x+5< -8x+6

=15x<1

The equivalent inequality is 15x<1. Therefore, option D is the correct answer.

Inequalities are the mathematical expressions in which both sides are not equal. In inequality, unlike in equations, we compare two values. The equal sign in between is replaced by less than (or less than or equal to), greater than (or greater than or equal to), or not equal to sign.

The given inequality is 7x+5<-2(4x-3).

Now, 7x+5<-8x+6

Subtract 5 on both the sides of an inequality, we get

7x<-8x+1

Add 8x on both the sides of an inequality, we get

7x+8x<1

15x<1

Therefore, option D is the correct answer.

To learn more about the inequalities visit:

https://brainly.com/question/20383699.

#SPJ2

Step-by-step explanation:

2x°+3x°=180°[ sum of adjacent angle]

or,5x°= 180°

or,x°= 180°/5

x°=36°

2x°= 2× 36°= 72°

3x°= 3 × 36°= 108°

Answer:

The sum of a number and 4 is

n + 4.

Without the value of n, nothing more can be said

Answer:

n + 4

Step-by-step explanation:

Let the number be n

Then we add ("sum up") n and 4 together.

n + 4

Step-by-step explanation:

9/10

=0.9

90%

=90/100

=0.9

Hence, 9/10 = 90 %

Answer:

A

Step-by-step explanation:

-6 its because -6 if you see those numbers 0,2,6 are the great.

Answer:

the answer is C 6x2 .....................

Answer:

1 is in the ten thousands, also know as 10,000

Answer:

[tex]f=12-\frac{t}{20}[/tex]

Step-by-step explanation: